60 files changed, 3029 insertions, 0 deletions

diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..dfe0770
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+# Auto detect text files and perform LF normalization
+* text=auto
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..ff86675
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,171 @@
+# syntax=docker/dockerfile:1
+# SPDX-License-Identifier: AGPL-3.0-or-later
+# This file is part of Wolfree.
+# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+FROM alpine
+
+WORKDIR /app/
+
+# Install all dependencies.
+
+RUN \
+    apk add \
+    -- \
+    wget \
+    npm \
+    gcc \
+    rustup \
+    ;
+
+RUN \
+    rustup-init -y
+
+COPY \
+    ./docusaurus/package.json \
+    ./docusaurus/package.json
+
+RUN \
+    npm install \
+    --prefix ./docusaurus/ \
+    -- \
+    ;
+
+# WolframAlpha LLC prebuilt the website and kindly deployed it on the Internet.
+# We can run Wget to download the web pages and save them as static pages.
+
+RUN \
+    wget \
+    --directory-prefix=./docusaurus/static/ \
+    --no-host-directories \
+    --page-requisites \
+    --convert-links \
+    --no-verbose \
+    -- \
+    'https://www.wolframalpha.com/input/index.html' \
+    'https://cdnjs.cloudflare.com/ajax/libs/jquery/3.7.0/jquery.min.js' \
+    'https://cdnjs.cloudflare.com/ajax/libs/dompurify/3.0.5/purify.min.js' \
+    ; \
+    : \
+    ;
+
+RUN \
+    sed \
+    -e 's|.*js...static.chunks...........||' \
+    -e 's|"........js.....miniCssF.*|.js\n|' \
+    -e 's|:"|.|g' \
+    -e 's|",|.js\n|g' \
+    -- \
+    ./docusaurus/static/_next/static/chunks/webpack-*.js \
+    | \
+    wget \
+    --directory-prefix=./docusaurus/static/ \
+    --no-host-directories \
+    --page-requisites \
+    --convert-links \
+    --no-verbose \
+    --input-file=- \
+    --base=https://www.wolframalpha.com/_next/static/chunks/ \
+    -- \
+    ; \
+    : \
+    ;
+
+RUN \
+    sed \
+    -e 's|.*return.static.css.....||' \
+    -e 's|.........css.......function.*|.css\n|' \
+    -e 's|[0-9]*:"||g' \
+    -e 's|",|.css\n|g' \
+    -- \
+    ./docusaurus/static/_next/static/chunks/webpack-*.js \
+    | \
+    wget \
+    --directory-prefix=./docusaurus/static/ \
+    --no-host-directories \
+    --page-requisites \
+    --convert-links \
+    --no-verbose \
+    --input-file=- \
+    --base=https://www.wolframalpha.com/_next/static/css/ \
+    -- \
+    ; \
+    : \
+    ;
+
+# Delete unused large files on the static website.
+
+RUN \
+    truncate \
+    -s 0 \
+    -- \
+    ./docusaurus/static/_next/static/images/* \
+    ;
+
+# Build the Docusaurus static website.
+
+COPY \
+    ./docusaurus/ \
+    ./docusaurus/
+
+RUN \
+    npm run \
+    --prefix ./docusaurus/ \
+    -- \
+    build \
+    ;
+
+# Lint the source code and run the Rust program.
+# The Rust program customizes the static pages.
+
+COPY \
+    ./rust/ \
+    ./rust/
+
+RUN \
+    PATH="$HOME/.cargo/bin:$PATH" \
+    cargo clippy \
+    --manifest-path ./rust/wolfree_libredirect_patch/Cargo.toml \
+    -- \
+    --warn clippy::all \
+    --warn clippy::cargo \
+    --warn clippy::nursery \
+    --warn clippy::pedantic \
+    --warn clippy::restriction \
+    ;
+
+RUN \
+    PATH="$HOME/.cargo/bin:$PATH" \
+    cargo clippy \
+    --manifest-path ./rust/wolfree_sed_in_place/Cargo.toml \
+    -- \
+    --warn clippy::all \
+    --warn clippy::cargo \
+    --warn clippy::nursery \
+    --warn clippy::pedantic \
+    --warn clippy::restriction \
+    ;
+
+# Optionally, customize Wolfree instances to suit LibRedirect.
+# https://github.com/libredirect/browser_extension/issues/425
+# To integrate Wolfree with LibRedirect, please delete the number sign at the beginning of the following line.
+# RUN PATH="$HOME/.cargo/bin:$PATH" cargo run --manifest-path ./rust/wolfree_libredirect_patch/Cargo.toml -- ;
+
+RUN PATH="$HOME/.cargo/bin:$PATH" cargo run --manifest-path ./rust/wolfree_sed_in_place/Cargo.toml -- ;
+
+# Optimizing builds with cache management | Docker Documentation
+# https://docs.docker.com/build/cache/
+# Because a change causes a rebuild for steps that follow,
+# try to make expensive steps appear near the beginning of the Dockerfile.
+# Steps that change often should appear near the end of the Dockerfile to avoid triggering rebuilds of layers that haven't changed.
+
+CMD \
+    npm run \
+    --prefix ./docusaurus/ \
+    -- \
+    serve \
+    --port 80 \
+    --host localhost \
+    ;
+
+EXPOSE 80
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..bf5868c
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,235 @@
+GNU AFFERO GENERAL PUBLIC LICENSE
+Version 3, 19 November 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
+
+                            Preamble
+
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+
+The licenses for most software and other practical works are designed to take away your freedom to share and change the works.  By contrast, our General Public Licenses are intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for all its users.
+
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+The GNU Affero General Public License is designed specifically to ensure that, in such cases, the modified source code becomes available to the community.  It requires the operator of a network server to provide the source code of the modified version running there to the users of that server.  Therefore, public use of a modified version, on a publicly accessible server, gives the public access to the source code of the modified version.
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+An older license, called the Affero General Public License and published by Affero, was designed to accomplish similar goals.  This is a different license, not a version of the Affero GPL, but Affero has released a new version of the Affero GPL which permits relicensing under this license.
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+The precise terms and conditions for copying, distribution and modification follow.
+
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+0. Definitions.
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+"This License" refers to version 3 of the GNU Affero General Public License.
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+You may convey verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice; keep intact all notices stating that this License and any non-permissive terms added in accord with section 7 apply to the code; keep intact all notices of the absence of any warranty; and give all recipients a copy of this License along with the Program.
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+
+6. Conveying Non-Source Forms.
+You may convey a covered work in object code form under the terms of sections 4 and 5, provided that you also convey the machine-readable Corresponding Source under the terms of this License, in one of these ways:
+
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+
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+If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License.  If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may
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+
+Notwithstanding any other provision of this License, if you modify the Program, your modified version must prominently offer all users interacting with it remotely through a computer network (if your version supports such interaction) an opportunity to receive the Corresponding Source of your version by providing access to the Corresponding Source from a network server at no charge, through some standard or customary means of facilitating copying of software.  This Corresponding Source shall include the Corresponding Source for any work covered by version 3 of the GNU General Public License that is incorporated pursuant to the following paragraph.
+
+Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU General Public License into a single combined work, and to convey the resulting work.  The terms of this License will continue to apply to the part which is the covered work, but the work with which it is combined will remain governed by version 3 of the GNU General Public License.
+
+14. Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions of the GNU Affero General Public License from time to time.  Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program specifies that a certain numbered version of the GNU Affero General Public License "or any later version" applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation.  If the Program does not specify a version number of the GNU Affero General Public License, you may choose any version ever published by the Free Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions of the GNU Affero General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program.
+
+Later license versions may give you additional or different permissions.  However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version.
+
+15. Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+16. Limitation of Liability.
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee.
+
+END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms.
+
+To do so, attach the following notices to the program.  It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the "copyright" line and a pointer to where the full notice is found.
+
+     wolfree-dockerfile
+     Copyright (C) 2023  wolfree
+
+     This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+     This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+     You should have received a copy of the GNU Affero General Public License along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If your software can interact with users remotely through a computer network, you should also make sure that it provides a way for users to get its source.  For example, if your program is a web application, its interface could display a "Source" link that leads users to an archive of the code.  There are many ways you could offer source, and different solutions will be better for different programs; see section 13 for the specific requirements.
+
+You should also get your employer (if you work as a programmer) or school, if any, to sign a "copyright disclaimer" for the program, if necessary. For more information on this, and how to apply and follow the GNU AGPL, see <http://www.gnu.org/licenses/>.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..6d20724
--- /dev/null
+++ b/README.md
@@ -0,0 +1,137 @@
+# Wolfree Dockerfile: Self-Host a Mirror Site of Wolfree Instances
+
+This repository provides a Dockerfile and instructions for self-hosting a mirror site of Wolfree instances.
+
+Follow the instructions below to control Docker through terminal emulators. Docker will automatically execute the static site generator and run the web server.
+
+## Prerequisites
+
+Before getting started, make sure you have the following prerequisites installed on your computer:
+
+1. **Terminal Emulator**: If you are unfamiliar with terminal emulators, you can learn how to use them in [Command Line Crash Course - Learn Web Development | MDN](https://developer.mozilla.org/en-US/docs/Learn/Tools_and_testing/Understanding_client-side_tools/Command_line).
+
+2. **Docker**: If you don't have Docker installed, download it from [docker.com](https://www.docker.com/).
+
+## Instructions
+
+Follow the steps below to self-host a mirror site of Wolfree instances:
+
+1. **Build the Docker Image**:
+
+   Open your terminal emulator and execute one of the following commands to build the Docker image. Each command downloads the source code from a different web server. If one of the commands fails, try the next one in the list until the build succeeds.
+
+   ```shell
+   docker build -t wolfree https://try.gitea.io/wolfree/wolfree-dockerfile.git
+   docker build -t wolfree https://codeberg.org/wolfree/wolfree-dockerfile.git
+   docker build -t wolfree https://git.disroot.org/wolfree/wolfree-dockerfile.git
+   docker build -t wolfree https://next.forgejo.org/wolfree/wolfree-dockerfile.git
+   docker build -t wolfree https://git.kiwifarms.net/wolfree/wolfree-dockerfile.git
+   docker build -t wolfree http://it7otdanqu7ktntxzm427cba6i53w6wlanlh23v5i3siqmos47pzhvyd.onion/wolfree/wolfree-dockerfile.git
+   ```
+
+2. **Run the Docker Container**:
+
+   Execute the following command in your terminal emulator to run the Docker container:
+
+   ```shell
+   docker run -p 80:80 wolfree
+   ```
+
+3. **Wait for Success Messages**:
+
+   Wait until Docker outputs success messages similar to the following:
+
+   ```shell
+   > docusaurus@0.0.0 serve
+   > docusaurus serve --port 80 --host localhost
+
+   [SUCCESS] Serving "build" directory at: http://localhost:80/
+   ```
+
+4. **Access Your Mirror Site**:
+
+   You can access your mirror site locally on the same computer where the Docker container runs. Open a web browser, navigate to [http://localhost/](http://localhost/) to access your mirror site, and enter math problems in the text box.
+
+Congratulations! You have successfully self-hosted a mirror site of Wolfree instances.
+
+## Local Development
+
+If you wish to contribute to the development of Wolfree instances, follow these steps:
+
+1. **Prepare the Development Environment**:
+
+   Install Git and Docker on your local machine. You can download them from the following official websites:
+
+   - [Git Official Website](https://git-scm.com/)
+   - [Docker Official Website](https://www.docker.com/)
+
+2. **Clone the Repository**:
+
+   Run one of the following commands to clone the repository from one of the Gitea and Forgejo servers:
+
+   ```shell
+   git clone https://try.gitea.io/wolfree/wolfree-dockerfile.git
+   git clone https://codeberg.org/wolfree/wolfree-dockerfile.git
+   git clone https://git.disroot.org/wolfree/wolfree-dockerfile.git
+   git clone https://next.forgejo.org/wolfree/wolfree-dockerfile.git
+   git clone https://git.kiwifarms.net/wolfree/wolfree-dockerfile.git
+   git clone http://it7otdanqu7ktntxzm427cba6i53w6wlanlh23v5i3siqmos47pzhvyd.onion/wolfree/wolfree-dockerfile.git
+   ```
+
+3. **Run the Docker Container**:
+
+   After cloning the repository, navigate to the project directory:
+
+   ```shell
+   cd wolfree-dockerfile
+   ```
+
+   Then, run the following commands to build the image and run the container:
+
+   ```shell
+   docker build --tag wolfree --progress=plain .
+   docker run --publish 80:80 --rm wolfree
+   ```
+
+## Configuring Wolfree Instances for LibRedirect
+
+To configure Wolfree instances to integrate with LibRedirect, follow these steps:
+
+1. Clone the Git repository and open the Dockerfile in a text editor.
+
+2. In the Dockerfile, remove the number sign (#) at the beginning of the `RUN` command. After removing the number sign, the `RUN` command should look like this:
+
+   ```dockerfile
+   # Optionally, customize Wolfree instances to suit LibRedirect.
+   # https://github.com/libredirect/browser_extension/issues/425
+   # To integrate Wolfree with LibRedirect, please delete the number sign at the beginning of the following line.
+   RUN PATH="$HOME/.cargo/bin:$PATH" cargo run --manifest-path ./rust/wolfree_libredirect_patch/Cargo.toml -- ;
+   ```
+
+3. Build a Docker image and run a container.
+
+## Helpful Resources for New Developers
+
+If you're new to web development, here are some helpful websites and tools to get you started:
+
+- [MDN Web Docs](https://developer.mozilla.org/en-US/docs/Learn): MDN is a comprehensive resource for web developers. It offers guides, tutorials, and references for various web technologies. It's a great place to learn and explore web development concepts.
+
+- [Web Dev](https://web.dev/learn/): Web Dev is a learning platform by Google that offers web development courses. It provides practical examples to help you improve your skills.
+
+- [Chrome DevTools - Chrome Developers](https://developer.chrome.com/docs/devtools/): Chrome DevTools is a set of web developer tools built directly into the Google Chrome browser. It provides powerful features to inspect and debug web applications.
+
+- [TypeScript: JavaScript With Syntax For Types.](https://www.typescriptlang.org/): TypeScript is a strongly typed programming language that builds on JavaScript, giving you better tooling at any scale.
+
+- [Writing Markup with JSX – React](https://react.dev/learn/writing-markup-with-jsx): JSX is a syntax extension for JavaScript that allows you to write HTML-like markup inside a JavaScript file.
+
+- [Markdown for the component era | MDX](https://mdxjs.com/docs/): MDX is a format that combines markdown, JSX, JavaScript expressions, and import/export statements in JavaScript modules.
+
+- [Desktop/PC - Privacy Guides](https://www.privacyguides.org/en/desktop/): Most Linux distributions have a terminal available by default. You can check out this guide for recommended distributions.
+
+These resources will help you get started and enhance your skills as a web developer. Happy learning!
+
+## License
+
+SPDX-License-Identifier: AGPL-3.0-or-later
+
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
diff --git a/docusaurus/.dockerignore b/docusaurus/.dockerignore
new file mode 100644
index 0000000..019391a
--- /dev/null
+++ b/docusaurus/.dockerignore
@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: AGPL-3.0-or-later
+# This file is part of Wolfree.
+# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+# Dependencies
+/node_modules
+
+# Production
+/build
+
+# Generated files
+.docusaurus
+.cache-loader
+
+# Misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+package-lock.json
diff --git a/docusaurus/.gitignore b/docusaurus/.gitignore
new file mode 100644
index 0000000..019391a
--- /dev/null
+++ b/docusaurus/.gitignore
@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: AGPL-3.0-or-later
+# This file is part of Wolfree.
+# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+# Dependencies
+/node_modules
+
+# Production
+/build
+
+# Generated files
+.docusaurus
+.cache-loader
+
+# Misc
+.DS_Store
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+package-lock.json
diff --git a/docusaurus/babel.config.js b/docusaurus/babel.config.js
new file mode 100644
index 0000000..e4fb2e2
--- /dev/null
+++ b/docusaurus/babel.config.js
@@ -0,0 +1,12 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+// @ts-check
+
+module.exports = {
+  presets: [require.resolve("@docusaurus/core/lib/babel/preset")],
+};
diff --git a/docusaurus/docs/acknowledgment.mdx b/docusaurus/docs/acknowledgment.mdx
new file mode 100644
index 0000000..e711148
--- /dev/null
+++ b/docusaurus/docs/acknowledgment.mdx
@@ -0,0 +1,87 @@
+# Acknowledgment
+
+We extend our heartfelt gratitude to the communities and projects that promote diversity, equity, and inclusion on the Internet. Their efforts have been instrumental in distributing our free and open-source software.
+
+## The Fediverse
+
+Our community distributes source code on the Fediverse.
+
+The Fediverse is a federation of numerous independently hosted servers that connect various social media platforms. It enables seamless interactions across compatible platforms, encompassing social media services for blogging, photo sharing, and video sharing.
+
+Discover the Fediverse with these resources:
+
+- [**Fediverse Info**](https://fediverse.info/): A beginner-friendly introduction to the Fediverse.
+- [**FediDB**](https://fedidb.org/): Visualized network statistics of the Fediverse.
+- [**Mastodon Documentation**](https://docs.joinmastodon.org/): Comprehensive documentation for Mastodon, a self-hosted social networking service similar to Twitter.
+- [**JoinFediverse Wiki**](https://joinfediverse.wiki/): An informative encyclopedia for the Fediverse.
+- [**FediList**](http://demo.fedilist.com/): A simple website to explore instances on the Fediverse and facilitate discovery and connections.
+- [**The Federation**](https://the-federation.info/): Indexed instances and statistics for the Fediverse.
+
+## ForgeFed
+
+Our community hosts source code on web services compatible with ForgeFed.
+
+ForgeFed specifies an essential federation protocol for version control services, promoting collaboration and cooperation.
+
+Explore ForgeFed and related projects:
+
+- [**ForgeFed**](https://forgefed.org/): The canonical website to learn more about the benefits and workings of ForgeFed.
+- [**Gitea**](https://about.gitea.com/): A self-hosted Git service powering numerous instances across the Fediverse.
+- [**Forgejo**](https://forgejo.org/): A soft fork of Gitea maintained by an inclusive community.
+
+## Copyleft
+
+Our community releases source code under a copyleft license.
+
+Copyleft is a legal technique that safeguards the freedom to copy and modify derivative works.
+
+Discover the significance of copyleft through these resources:
+
+- [**Blue Oak Council**](https://blueoakcouncil.org/primer): A comprehensive guide to open software licensing, making it accessible and understandable.
+- [**What is Copyleft**](https://www.gnu.org/licenses/copyleft.html.en): An explanation of copyleft, reinforcing the importance of free software.
+- [**Why Copyleft**](https://www.gnu.org/philosophy/why-copyleft.html.en): A showcase of the benefits of copyleft licenses to inspire more creators to embrace copyleft licensing.
+- [**Why I Use the GPL and Not Cuck Licenses**](https://lukesmith.xyz/articles/why-i-use-the-gpl-and-not-cuck-licenses/): An elaboration on the advantages of copyleft.
+
+## Anna's Archive
+
+Anna's Archive is a non-profit online shadow library metasearch engine that provides access to a curated collection of book resources managed by anonymous archivists. Anna's Archive keeps backups of popular shadow libraries like Sci-Hub, Library Genesis, and Z-Library.
+
+- [**Anna's Archive - Wikipedia**](https://en.wikipedia.org/wiki/Anna's_Archive): A wiki page about Anna's Archive on the free encyclopedia.
+
+## The Internet Archive
+
+Our community archives source code on the Internet Archive.
+
+The Internet Archive is a non-profit library that lends digital copies of books. Despite facing challenges related to copyright issues, they continue to fight for the rights of libraries to own and lend ebooks.
+
+Learn more about their ongoing efforts through these articles:
+
+- [**Hachette v. Internet Archive**](https://www.eff.org/cases/hachette-v-Internet-archive)
+- [**Fair Use Creep Is A Feature, Not a Bug**](https://www.eff.org/deeplinks/2023/01/fair-use-creep-feature-not-bug)
+- [**The Fight Continues**](https://blog.archive.org/2023/03/25/the-fight-continues/)
+
+## Censorship Circumvention
+
+Safely circumventing censorship is crucial in fostering diversity, equity, and inclusion on the Internet.
+
+Enhance your knowledge of safety measures for censorship circumvention with these resources:
+
+- [**Privacy Guides**](https://privacyguides.org/): A user-friendly guide promoting data security and privacy.
+- [**Mullvad Browser**](https://mullvad.net/en/browser): A privacy-focused web browser developed in collaboration between Mullvad VPN and the Tor Project.
+- [**Tor Browser**](https://torproject.org/): A web browser capable of accessing the Tor network.
+- [**Tails**](https://tails.net/): A Linux distribution aimed at preserving privacy and anonymity.
+- [**Qubes OS**](https://qubes-os.org/): A Linux distribution that provides security through isolation.
+- [**The Hitchhiker's Guide to Online Anonymity**](https://anonymousplanet.org/): An in-depth guide detailing online anonymity methods.
+
+## Net Neutrality
+
+Upholding net neutrality is pivotal in nurturing diversity, equity, and inclusion on the Internet. It ensures that broadband Internet access services do not impair or degrade lawful Internet traffic based on content, application, or service, subject to reasonable network management.
+
+Learn more about net neutrality and its importance through these articles:
+
+- [**We Need to Talk About Infrastructure**](https://www.eff.org/deeplinks/2022/12/we-need-talk-about-infrastructure): The importance of content-neutral essential Internet infrastructure and the challenges in defining what falls under this category.
+- [**The Internet Is Not Facebook: Why Infrastructure Providers Should Stay Out of Content Policing**](https://www.eff.org/deeplinks/2022/10/Internet-not-facebook-why-infrastructure-providers-should-stay-out-content): The content policing of infrastructure providers due to complex challenges and potential harm to marginalized communities.
+- [**International Coalition of Rights Groups Call on Internet Infrastructure Providers to Avoid Content Policing**](https://www.eff.org/press/releases/international-coalition-rights-groups-call-Internet-infrastructure-providers-avoid): Urging Internet infrastructure providers to avoid content policing, citing harm to users and human rights risks.
+- [**Where the Sidewalk Ends: The Death of the Internet**](https://madattheInternet.substack.com/p/where-the-sidewalk-ends-the-death): The fragmenting of the Internet as national borders and government regulations stifle its openness and connectivity.
+
+<!-- SPDX-License-Identifier: AGPL-3.0-or-later -->
diff --git a/docusaurus/docs/community.mdx b/docusaurus/docs/community.mdx
new file mode 100644
index 0000000..aebf053
--- /dev/null
+++ b/docusaurus/docs/community.mdx
@@ -0,0 +1,41 @@
+# Community
+
+Welcome to our diverse and inclusive community! We encourage open discussions and warmly invite you to join the conversations. 🎉
+
+:::note
+
+Our community thrives on the Fediverse, a decentralized social network that encompasses various platforms such as:
+
+- [Mastodon](https://joinmastodon.org/)
+- [Pleroma](https://pleroma.social/)
+- [Gitea](https://about.gitea.com/)
+- [Forgejo](https://forgejo.org/)
+
+:::
+
+## Mastodon and Pleroma
+
+We would love to hear your thoughts! Express yourself freely on Mastodon and Pleroma.
+
+1. https://poa.st/@wolfree
+2. https://sb.bae.st/@wolfree
+3. https://kiwifarms.cc/wolfree
+4. https://spinster.xyz/@wolfree
+5. https://freespeechextremist.com/wolfree
+
+## Gitea and Forgejo
+
+Feel free to contribute and [report issues](https://docs.github.com/en/issues) on Gitea and Forgejo.
+
+1. https://try.gitea.io/wolfree/issues/issues
+2. https://codeberg.org/wolfree/issues/issues
+3. https://git.disroot.org/wolfree/issues/issues
+4. https://next.forgejo.org/wolfree/issues/issues
+5. https://git.kiwifarms.net/wolfree/issues/issues
+6. http://it7otdanqu7ktntxzm427cba6i53w6wlanlh23v5i3siqmos47pzhvyd.onion/wolfree/issues/issues
+
+## Diversity, Equity, and Inclusion
+
+At our core, we strive to cultivate an environment that celebrates diversity, promotes equity, and upholds inclusion on the Internet. ❤️ We value and respect every voice. Let's connect and build a healthy, supportive community!
+
+<!-- SPDX-License-Identifier: AGPL-3.0-or-later -->
diff --git a/docusaurus/docs/dmca.mdx b/docusaurus/docs/dmca.mdx
new file mode 100644
index 0000000..4bffc1e
--- /dev/null
+++ b/docusaurus/docs/dmca.mdx
@@ -0,0 +1,12 @@
+# DMCA takedown
+
+Below are some of the DMCA takedown notices issued by Wolfram Alpha LLC:
+
+1. [2021-08-11-wolfram.md](https://github.com/github/dmca/blob/master/2021/08/2021-08-11-wolfram.md)
+2. [2021-08-16-wolfram.md](https://github.com/github/dmca/blob/master/2021/08/2021-08-16-wolfram.md)
+3. [2022-09-22-wolfram.md](https://github.com/github/dmca/blob/master/2022/09/2022-09-22-wolfram.md)
+
+If you believe someone is using your copyrighted content unauthorizedly on GitHub or npm.js, please fill out the [Copyright claims form](https://github.com/contact/dmca) to submit a DMCA takedown notice to request that the content be changed or removed.
+Before you begin, please read [GitHub's Copyright - DMCA Takedown Policy](https://docs.github.com/en/site-policy/content-removal-policies/dmca-takedown-policy).
+
+As with all legal matters, it is always best to consult a professional about your questions or situation. We strongly encourage you to do so before taking action that might impact your rights. This guide isn't legal advice.
diff --git a/docusaurus/docs/index.mdx b/docusaurus/docs/index.mdx
new file mode 100644
index 0000000..487c0b8
--- /dev/null
+++ b/docusaurus/docs/index.mdx
@@ -0,0 +1,109 @@
+---
+slug: /
+title: Home page
+---
+
+# <br /> Free Wolfram Alpha Step-by-Step Solutions
+
+Get free access to **step-by-step** solutions. Unlock the power of **Wolfram|Alpha Pro** for free. Wolfree is **free** and **open-source** software. Thousands of learners use Wolfree to bypass paywalls.
+
+import FormCTA from "../src/components/FormCTA.tsx";
+import FormQuickStart from "../src/components/FormQuickStart.tsx";
+import ButtonLink from "../src/components/ButtonLink.tsx";
+
+<FormCTA autoFocus={true} />
+
+<br />
+<br />
+
+## How To Use Wolfree
+
+<FormQuickStart />
+
+<br />
+<br />
+
+## Mirror Sites
+
+Wolfree operates through a network of mirror sites to ensure uninterrupted access to step-by-step solutions. If you can't access this web page, visit one of our [mirror sites](/mirror) to continue your learning journey.
+
+<p>
+  <ButtonLink to="./mirror" text="Access Mirror Sites" />
+</p>
+
+<br />
+<br />
+
+## Source Code
+
+Wolfree is **free** and **open-source** software. Our inclusive community welcomes individuals from diverse backgrounds to collaborate on our [source code](/source). Let's foster diversity, equity, and inclusion on the Internet. ❤️
+
+<p>
+  <ButtonLink to="./source" text="Explore Source Code" />
+</p>
+
+<br />
+<br />
+
+## How Wolfree Works
+
+Here's a simplified breakdown of how Wolfree works:
+
+1. Programmers distribute the Dockerfile on Fediverse, including platforms compatible with ForgeFed, like Forgejo and Gitea.
+2. Website operators install and run Docker.
+3. Docker automatically downloads the Dockerfile from Fediverse and builds a Docker image.
+4. Web hosting service providers deploy Wolfree mirror sites.
+5. Internet service providers allow your web browser to connect to Wolfree mirror sites.
+6. You gain **free** access to the computational capabilities of **Wolfram|Alpha Pro**. 🎉
+
+Wolfree leverages a [shadow library](https://en.wikipedia.org/wiki/Shadow_library) that shares **step-by-step** solutions, ensuring you have free access to the learning resources you need.
+
+<br />
+<br />
+
+## Testimonials
+
+Here's what our community has to say about Wolfree:
+
+> "Wolfree has been a transformative addition to my academic journey. The **step-by-step** solutions powered by **Wolfram|Alpha Pro** have profoundly enriched my understanding of complex math concepts. Thanks to Wolfree, my grades have seen remarkable improvement. I now approach math confidently." - Olivia (they/them), Student.
+
+> "As a math teacher, I wholeheartedly endorse Wolfree for my students. The **step-by-step** solutions promote genuine comprehension of math concepts. By incorporating the computational capabilities of **Wolfram|Alpha Pro** into my classroom, Wolfree has significantly elevated my students' learning experiences." - Mx. Smith (they/them), Educator.
+
+<br />
+<br />
+
+## What You'll Get with Wolfree
+
+By using Wolfree, you'll get **free** access to the full potential of **Wolfram|Alpha Pro**, including:
+
+- Get answers and hints for your math homework problems.
+- Use **step-by-step** calculators for chemistry, calculus, algebra, trigonometry, and equation solving.
+- Develop a deeper understanding of your homework with detailed steps and hints guiding you from problems to answers.
+
+Unleash the full potential of your learning with Wolfree and elevate your studies to a whole new level. 🚀
+
+It's **free**! Type your math problem and click "**Show Steps**" now!
+
+<FormCTA />
+
+<br />
+<br />
+
+<!--
+  What Is a Landing Page? Landing Pages Explained | Unbounce
+  https://unbounce.com/landing-page-articles/what-is-a-landing-page/
+  Is Your Landing Page Good Enough to get into Y Combinator?
+  https://yourlandingpagesucks.com/startup-landing-page-teardown-yc/
+-->
+
+<!--
+  Diversity, equity, and inclusion - Wikipedia
+  https://en.wikipedia.org/wiki/Diversity,_equity,_and_inclusion
+-->
+
+<!--
+  My pronouns are: they/them • Pronouns.page
+  https://en.pronouns.page/they
+-->
+
+<!-- SPDX-License-Identifier: AGPL-3.0-or-later -->
diff --git a/docusaurus/docs/mirror.mdx b/docusaurus/docs/mirror.mdx
new file mode 100644
index 0000000..8af5f77
--- /dev/null
+++ b/docusaurus/docs/mirror.mdx
@@ -0,0 +1,50 @@
+---
+title: Mirror site
+---
+
+# Mirror Sites: Alternative Instances
+
+Wolfree operates through a network of mirror sites to ensure uninterrupted access to step-by-step solutions. If you can't access this web page, visit one of our mirror sites to continue your learning journey.
+
+1. https://wolfree.chickenkiller.com/
+2. https://wolfree.crabdance.com/
+3. https://wolfree.gitlab.io/
+4. https://wolfree.glitch.me/
+5. https://wolfree.ignorelist.com/
+6. https://wolfree.jumpingcrab.com/
+7. https://wolfree.my.to/
+8. https://wolfree.netlify.app/
+9. https://wolfree.on.fleek.co/
+10. https://wolfree.onrender.com/
+11. https://wolfree.pages.dev/
+12. https://wolfree.privatedns.org/
+13. https://wolfree.strangled.net/
+14. https://wolfree.twilightparadox.com/
+15. https://wolfree.uk.to/
+16. https://wolfree.us.to/
+17. https://wolfreealpha.chickenkiller.com/
+18. https://wolfreealpha.crabdance.com/
+19. https://wolfreealpha.gitlab.io/
+20. https://wolfreealpha.glitch.me/
+21. https://wolfreealpha.ignorelist.com/
+22. https://wolfreealpha.jumpingcrab.com/
+23. https://wolfreealpha.my.to/
+24. https://wolfreealpha.netlify.app/
+25. https://wolfreealpha.on.fleek.co/
+26. https://wolfreealpha.onrender.com/
+27. https://wolfreealpha.pages.dev/
+28. https://wolfreealpha.privatedns.org/
+29. https://wolfreealpha.strangled.net/
+30. https://wolfreealpha.twilightparadox.com/
+31. https://wolfreealpha.uk.to/
+32. https://wolfreealpha.us.to/
+
+:::note
+Please note that Internet Service Providers may block access to this website without prior notice. Therefore, we recommend bookmarking the mirror sites in advance to ensure easier access.
+:::
+
+If you cannot access any of the mirror sites, we recommend installing the [Tor Browser](https://www.torproject.org/) to bypass censorship.
+
+If you have programming knowledge, you can deserialize the [instances.json](pathname://../instances.json) file.
+
+<!-- SPDX-License-Identifier: AGPL-3.0-or-later -->
diff --git a/docusaurus/docs/source.mdx b/docusaurus/docs/source.mdx
new file mode 100644
index 0000000..e9d0192
--- /dev/null
+++ b/docusaurus/docs/source.mdx
@@ -0,0 +1,32 @@
+---
+title: Source code
+---
+
+# Access and Download the Source Code of Wolfree
+
+Wolfree is free and open-source software. You can access and download the source code from the following websites:
+
+1. https://try.gitea.io/wolfree
+2. https://codeberg.org/wolfree
+3. https://git.disroot.org/wolfree
+4. https://next.forgejo.org/wolfree
+5. https://git.kiwifarms.net/wolfree
+6. http://it7otdanqu7ktntxzm427cba6i53w6wlanlh23v5i3siqmos47pzhvyd.onion/wolfree
+
+## The Unreliability of GitHub
+
+We do not recommend pushing the source code to GitHub. Their [DMCA Takedown Policy](https://docs.github.com/en/site-policy/content-removal-policies/dmca-takedown-policy) makes storing the source code on GitHub unreliable.
+
+## The High Availability of ForgeFed
+
+For a more reliable and collaborative development experience, we recommend using [Gitea](https://about.gitea.com/) and [Forgejo](https://forgejo.org/). These platforms support [ActivityPub](https://www.w3.org/TR/activitypub/) and [ForgeFed](https://forgefed.org/) protocols, enabling seamless collaboration and communication among developers.
+
+:::note
+If you cannot access Gitea or Forgejo, we recommend installing the [Tor Browser](https://www.torproject.org/). The Tor Browser is a reputable tool designed to bypass censorship.
+:::
+
+## License
+
+SPDX-License-Identifier: AGPL-3.0-or-later
+
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
diff --git a/docusaurus/docusaurus.config.js b/docusaurus/docusaurus.config.js
new file mode 100644
index 0000000..1cb19b7
--- /dev/null
+++ b/docusaurus/docusaurus.config.js
@@ -0,0 +1,102 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+// @ts-check
+
+/** @type {import('@docusaurus/types').Config} */
+module.exports = {
+  title: "Wolfree - Free WolframAlpha step-by-step solution",
+  url: "http://example.com",
+  baseUrl: "/",
+  favicon: "data:,",
+  presets: [
+    [
+      "classic",
+      /** @type {import('@docusaurus/preset-classic').Options} */
+      {
+        docs: {
+          sidebarPath: require.resolve("./sidebars.js"),
+          routeBasePath: "/",
+          breadcrumbs: false,
+        },
+        blog: false,
+        pages: false,
+        theme: {
+          customCss: [require.resolve("./src/css/custom.css")],
+        },
+      },
+    ],
+  ],
+  /** @type {import('@docusaurus/preset-classic').ThemeConfig} */
+  themeConfig: {
+    colorMode: {
+      disableSwitch: true,
+    },
+    docs: {
+      sidebar: {
+        hideable: true,
+      },
+    },
+    navbar: {
+      hideOnScroll: true,
+      items: [
+        {
+          to: "/",
+          label: "Wolfree",
+          position: "left",
+        },
+        {
+          to: "pathname:///input/",
+          label: "Input",
+          position: "right",
+          target: "_self",
+        },
+        {
+          to: "/mirror",
+          label: "Mirror",
+          position: "right",
+        },
+        {
+          to: "/source",
+          label: "Source",
+          position: "right",
+        },
+      ],
+    },
+    footer: {
+      links: [
+        {
+          label: "Home page",
+          href: "/",
+        },
+        {
+          html: '<a class="footer__link-item" href="/input/">Input math problems</a>',
+        },
+        {
+          label: "Mirror site",
+          href: "/mirror",
+        },
+        {
+          label: "Source code",
+          href: "/source",
+        },
+        {
+          label: "Community",
+          href: "/community",
+        },
+        {
+          label: "Acknowledgment",
+          href: "/acknowledgment",
+        },
+        {
+          label: "DMCA takedown",
+          href: "/dmca",
+        },
+      ],
+    },
+  },
+};
diff --git a/docusaurus/package.json b/docusaurus/package.json
new file mode 100644
index 0000000..2e58a5e
--- /dev/null
+++ b/docusaurus/package.json
@@ -0,0 +1,51 @@
+{
+  "name": "docusaurus",
+  "version": "0.0.0",
+  "private": true,
+  "scripts": {
+    "docusaurus": "docusaurus",
+    "start": "docusaurus start",
+    "build": "docusaurus build",
+    "swizzle": "docusaurus swizzle",
+    "deploy": "docusaurus deploy",
+    "clear": "docusaurus clear",
+    "serve": "docusaurus serve",
+    "write-translations": "docusaurus write-translations",
+    "write-heading-ids": "docusaurus write-heading-ids",
+    "typecheck": "tsc"
+  },
+  "dependencies": {
+    "@docusaurus/core": "2.4.1",
+    "@docusaurus/preset-classic": "2.4.1",
+    "@emotion/react": "^11.11.1",
+    "@emotion/styled": "^11.11.0",
+    "@mdx-js/react": "^1.6.22",
+    "@mui/material": "^5.14.1",
+    "@types/dompurify": "^3.0.2",
+    "@types/jquery": "^3.5.16",
+    "clsx": "^1.2.1",
+    "prism-react-renderer": "^1.3.5",
+    "react": "^17.0.2",
+    "react-dom": "^17.0.2"
+  },
+  "devDependencies": {
+    "@docusaurus/module-type-aliases": "2.4.1",
+    "@tsconfig/docusaurus": "^1.0.5",
+    "typescript": "^4.7.4"
+  },
+  "browserslist": {
+    "production": [
+      ">0.5%",
+      "not dead",
+      "not op_mini all"
+    ],
+    "development": [
+      "last 1 chrome version",
+      "last 1 firefox version",
+      "last 1 safari version"
+    ]
+  },
+  "engines": {
+    "node": ">=16.14"
+  }
+}
diff --git a/docusaurus/sidebars.js b/docusaurus/sidebars.js
new file mode 100644
index 0000000..3a62009
--- /dev/null
+++ b/docusaurus/sidebars.js
@@ -0,0 +1,29 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+// @ts-check
+
+/** @type {import('@docusaurus/plugin-content-docs').SidebarsConfig} */
+module.exports = {
+  sidebarId: [
+    "index",
+    {
+      type: "html",
+      value: '<a class="menu__link" href="/input/">Input math problems</a>',
+      className: "menu__list-item",
+    },
+    "mirror",
+    "source",
+    {
+      type: "category",
+      label: "Detail",
+      collapsible: true,
+      collapsed: true,
+      items: ["community", "acknowledgment", "dmca"],
+    },
+  ],
+};
diff --git a/docusaurus/src/components/ButtonLink.tsx b/docusaurus/src/components/ButtonLink.tsx
new file mode 100644
index 0000000..12fc559
--- /dev/null
+++ b/docusaurus/src/components/ButtonLink.tsx
@@ -0,0 +1,27 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+import React from "react";
+import Link from "@docusaurus/Link";
+import { Button } from "@mui/material";
+
+const ButtonLink = ({ to = String(), text = String() }) => (
+  <Link to={to}>
+    <Button size="large" sx={{ textTransform: "capitalize" }}>
+      <strong>{text}</strong>
+      &nbsp; »
+    </Button>
+  </Link>
+);
+
+export default ButtonLink;
+
+// Typography - MUI System
+// https://mui.com/system/typography/
+
+// Docusaurus Client API | Docusaurus
+// https://docusaurus.io/docs/docusaurus-core#link
diff --git a/docusaurus/src/components/FormCTA.tsx b/docusaurus/src/components/FormCTA.tsx
new file mode 100644
index 0000000..1b5a81e
--- /dev/null
+++ b/docusaurus/src/components/FormCTA.tsx
@@ -0,0 +1,23 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+import React from "react";
+import submitMathInputForm from "../functions/submitMathInputForm";
+import InputMathProblems from "./InputMathProblems";
+import ShowStepButton from "./ShowStepButton";
+
+const FormCTA = ({ autoFocus = Boolean() }) => (
+  <form onSubmit={submitMathInputForm}>
+    <p></p>
+    <InputMathProblems autoFocus={autoFocus} />
+    <p></p>
+    <ShowStepButton />
+    <p></p>
+  </form>
+);
+
+export default FormCTA;
diff --git a/docusaurus/src/components/FormQuickStart.tsx b/docusaurus/src/components/FormQuickStart.tsx
new file mode 100644
index 0000000..60589fb
--- /dev/null
+++ b/docusaurus/src/components/FormQuickStart.tsx
@@ -0,0 +1,35 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+import React from "react";
+import submitMathInputForm from "../functions/submitMathInputForm";
+import InputMathProblems from "./InputMathProblems";
+import ShowStepButton from "./ShowStepButton";
+
+const FormQuickStart = () => (
+  <form onSubmit={submitMathInputForm}>
+    <ol>
+      <li>
+        <p>Type your math problem in the text box.</p>
+        <InputMathProblems defaultValue="y'=y" />
+      </li>
+      <li>
+        <p>
+          Click the "Show Steps" button.
+        </p>
+        <ShowStepButton />
+      </li>
+      <li>
+        <p>
+          Explore the step-by-step solution provided. 🎉
+        </p>
+      </li>
+    </ol>
+  </form>
+);
+
+export default FormQuickStart;
diff --git a/docusaurus/src/components/InputMathProblems.tsx b/docusaurus/src/components/InputMathProblems.tsx
new file mode 100644
index 0000000..c7b49ce
--- /dev/null
+++ b/docusaurus/src/components/InputMathProblems.tsx
@@ -0,0 +1,33 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+import React from "react";
+import TextField from "@mui/material/TextField";
+// TextField API - Material UI
+// https://mui.com/material-ui/api/text-field/
+
+const InputMathProblems = ({
+  autoFocus = Boolean(),
+  defaultValue = String(),
+}) => (
+  <TextField
+    name="i"
+    type="search"
+    autoCapitalize="off"
+    autoComplete="off"
+    autoCorrect="off"
+    spellCheck="false"
+    inputProps={{ enterkeyhint: "go" }}
+    autoFocus={autoFocus}
+    label="&nbsp; Input math problems"
+    variant="outlined"
+    fullWidth
+    defaultValue={defaultValue}
+  />
+);
+
+export default InputMathProblems;
diff --git a/docusaurus/src/components/ShowStepButton.tsx b/docusaurus/src/components/ShowStepButton.tsx
new file mode 100644
index 0000000..3ae7ba3
--- /dev/null
+++ b/docusaurus/src/components/ShowStepButton.tsx
@@ -0,0 +1,25 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+import React from "react";
+import { Button } from "@mui/material";
+
+const ShowStepButton = () => (
+  <Button
+    type="submit"
+    size="large"
+    variant="contained"
+    sx={{ textTransform: "capitalize" }}
+  >
+    Show Steps
+  </Button>
+);
+
+export default ShowStepButton;
+
+// Typography - MUI System
+// https://mui.com/system/typography/
diff --git a/docusaurus/src/css/custom.css b/docusaurus/src/css/custom.css
new file mode 100644
index 0000000..a027863
--- /dev/null
+++ b/docusaurus/src/css/custom.css
@@ -0,0 +1,21 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+:root {
+    --ifm-menu-link-padding-vertical: calc(var(--ifm-menu-link-padding-horizontal) * 1.5);
+    --ifm-color-primary: blue;
+    --ifm-color-gray-900: var(--ifm-color-gray-900);
+    --ifm-color-secondary-contrast-foreground: var(--ifm-color-gray-900);
+}
+
+.footer__link-item {
+    line-height: 3;
+}
+
+.alert {
+    --ifm-link-color: unset;
+}
\ No newline at end of file
diff --git a/docusaurus/src/functions/submitMathInputForm.tsx b/docusaurus/src/functions/submitMathInputForm.tsx
new file mode 100644
index 0000000..a90894e
--- /dev/null
+++ b/docusaurus/src/functions/submitMathInputForm.tsx
@@ -0,0 +1,23 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+import { FormEventHandler } from "react";
+
+const submitMathInputForm: FormEventHandler<HTMLFormElement> = (event) => {
+  event.preventDefault();
+  const form = event.currentTarget;
+  const formData = new FormData(form);
+
+  const i = formData.get("i") || "";
+  if (i instanceof File) return;
+
+  const url = new URL("/input/", window.location.href);
+  url.searchParams.set("i", i);
+  window.location.href = url.href;
+};
+
+export default submitMathInputForm;
diff --git a/docusaurus/src/theme/Footer/InputPreloader.tsx b/docusaurus/src/theme/Footer/InputPreloader.tsx
new file mode 100644
index 0000000..325f8a7
--- /dev/null
+++ b/docusaurus/src/theme/Footer/InputPreloader.tsx
@@ -0,0 +1,43 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+import React, { useEffect, useState } from "react";
+
+const InputPreloader = () => {
+  const [showIframe, setShowIframe] = useState(false);
+
+  useEffect(() => {
+    const handleIframeLoad = () => {
+      // Show the iframe after a 3000ms delay
+      const timerId = setTimeout(() => setShowIframe(true), 3000);
+      // Cleanup the timer when the component unmounts
+      return () => clearTimeout(timerId);
+    };
+
+    window.scroll(0, 0);
+
+    window.addEventListener("load", handleIframeLoad);
+
+    // Cleanup the event listener when the component unmounts
+    return () => window.removeEventListener("load", handleIframeLoad);
+  }, []); // Empty dependency array means the effect runs only once after initial render
+
+  return (
+    <>
+      {/* Use a descriptive title for accessibility */}
+      {showIframe && (
+        <iframe
+          title="Input Page Preloader"
+          src="/input/"
+          style={{ display: "none" }}
+        />
+      )}
+    </>
+  );
+};
+
+export default InputPreloader;
diff --git a/docusaurus/src/theme/Footer/index.tsx b/docusaurus/src/theme/Footer/index.tsx
new file mode 100644
index 0000000..2edef40
--- /dev/null
+++ b/docusaurus/src/theme/Footer/index.tsx
@@ -0,0 +1,21 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+import React from "react";
+import Footer from "@theme-original/Footer";
+import InputPreloader from "./InputPreloader";
+
+const FooterWrapper = (props: React.JSX.IntrinsicAttributes) => {
+  return (
+    <>
+      <Footer {...props} />
+      <InputPreloader />
+    </>
+  );
+};
+
+export default FooterWrapper;
diff --git a/docusaurus/src/theme/NotFound/DDoSProtection.tsx b/docusaurus/src/theme/NotFound/DDoSProtection.tsx
new file mode 100644
index 0000000..6cd8c04
--- /dev/null
+++ b/docusaurus/src/theme/NotFound/DDoSProtection.tsx
@@ -0,0 +1,34 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+import React from "react";
+
+const DDoSProtection = () => (
+  <center
+    style={{
+      display: "flex",
+      justifyContent: "center",
+      alignItems: "center",
+      height: 100 + "vh",
+    }}
+  >
+    <center>
+      <h1>Checking your browser before accessing Wolfree</h1>
+      <p>
+        This process is automatic. Your browser will redirect to your requested
+        content shortly.
+      </p>
+      <p>Please allow up to 5 seconds...</p>
+      <p>
+        <br />
+      </p>
+      <p>DDoS Protection by Wolfree</p>
+    </center>
+  </center>
+);
+
+export default DDoSProtection;
diff --git a/docusaurus/src/theme/NotFound/index.tsx b/docusaurus/src/theme/NotFound/index.tsx
new file mode 100644
index 0000000..d5e0208
--- /dev/null
+++ b/docusaurus/src/theme/NotFound/index.tsx
@@ -0,0 +1,28 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+import React from "react";
+import NotFound from "@theme-original/NotFound";
+import redirectInput from "./redirectInput";
+import DDoSProtection from "./DDoSProtection";
+
+const NotFoundWrapper = (props: React.JSX.IntrinsicAttributes) => {
+  redirectInput();
+  return (
+    <>
+      <DDoSProtection />
+      <div style={{ display: "none" }}>
+        <NotFound {...props} />
+      </div>
+    </>
+  );
+};
+
+export default NotFoundWrapper;
+
+// How can I customize the 404 page? · facebook/docusaurus · Discussion #6030
+// https://github.com/facebook/docusaurus/discussions/6030
diff --git a/docusaurus/src/theme/NotFound/redirectInput.tsx b/docusaurus/src/theme/NotFound/redirectInput.tsx
new file mode 100644
index 0000000..4e29b4a
--- /dev/null
+++ b/docusaurus/src/theme/NotFound/redirectInput.tsx
@@ -0,0 +1,70 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+import { useEffect } from "react";
+
+const redirectInput = () => {
+  useEffect(() => {
+    const redirectToInputPage = () => {
+      const pathname = window.location.pathname;
+
+      const isExample = pathname.includes("/example");
+      if (!isExample) {
+        window.location.href = "/";
+        return;
+      }
+
+      const filename = pathname.split("/").pop();
+      if (!filename) {
+        window.location.href = "/";
+        return;
+      }
+
+      const topic = "topic " + filename.replace(/-/g, " ");
+      const url = new URL("/input/", window.location.href);
+      url.searchParams.set("i", topic);
+      window.location.href = url.href;
+    };
+
+    redirectToInputPage();
+  }, []); // The effect runs only once on mount
+};
+
+export default redirectInput;
+
+/*
+ * test case:
+ *
+ *   - Passing
+ *     - elementary-math
+ *       - Goal: https://www.wolframalpha.com/examples/mathematics/elementary-math
+ *       - Doesn't work: http://localhost/input?i=elementary+math
+ *       - Does work: http://localhost/input?i=topic+elementary+math
+ *     - common-core-math-functions
+ *       - Goal: https://wc.wolframalpha.com/examples/mathematics/common-core-math/common-core-math-functions
+ *       - Doesn't work: http://localhost/input?i=common+core+math+functions
+ *       - Does work: http://localhost/input?i=topic+common+core+math+functions
+ *
+ *   - Failing
+ *     - continuity
+ *       - Goal: https://www.wolframalpha.com/examples/mathematics/calculus-and-analysis/continuity
+ *       - Does not work: http://localhost/input?i=topic+continuity
+ *       - Does work: (not found yet)
+ *     - neuroscience
+ *       - Goal: https://www.wolframalpha.com/examples/science-and-technology/life-sciences/neuroscience
+ *       - Does not work: http://localhost/input?i=topic+neuroscience
+ *       - Does work: (not found yet)
+ *     - molecular-biology
+ *       - Goal: https://wc.wolframalpha.com/examples/science-and-technology/life-sciences/molecular-biology
+ *       - Does not work: http://localhost/input?i=topic+molecular+biology
+ *       - Does work: (not found yet)
+ *     - personal-finance
+ *       - Goal: https://www.wolframalpha.com/examples/everyday-life/personal-finance
+ *       - Does not work: http://localhost/input?i=topic+personal+finance
+ *       - Does work: (not found yet)
+ *
+ */
diff --git a/docusaurus/static/.gitlab-ci.yml b/docusaurus/static/.gitlab-ci.yml
new file mode 100644
index 0000000..9f3ba6d
--- /dev/null
+++ b/docusaurus/static/.gitlab-ci.yml
@@ -0,0 +1,19 @@
+# To contribute improvements to CI/CD templates, please follow the Development guide at:
+# https://docs.gitlab.com/ee/development/cicd/templates.html
+# This specific template is located at:
+# https://gitlab.com/gitlab-org/gitlab/-/blob/master/lib/gitlab/ci/templates/Pages/HTML.gitlab-ci.yml
+
+# Full project: https://gitlab.com/pages/plain-html
+pages:
+  stage: deploy
+  environment: production
+  script:
+    - mkdir .public
+    - cp -r ./* .public
+    - rm -rf public
+    - mv .public public
+  artifacts:
+    paths:
+      - public
+  rules:
+    - if: $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
diff --git a/docusaurus/static/.nojekyll b/docusaurus/static/.nojekyll
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/docusaurus/static/.nojekyll
diff --git a/docusaurus/static/ajax/libs/wolfree/23.7.8/css/Placeholder.css b/docusaurus/static/ajax/libs/wolfree/23.7.8/css/Placeholder.css
new file mode 100644
index 0000000..b7553e2
--- /dev/null
+++ b/docusaurus/static/ajax/libs/wolfree/23.7.8/css/Placeholder.css
@@ -0,0 +1,90 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+.wolfree-placeholder {
+  display: flex;
+  width: 100%;
+  justify-content: center;
+  /* padding: 26px 40px 20px; */
+  padding: 26px 0 0;
+}
+
+.wolfree-placeholder>div {
+  position: relative;
+}
+
+.wolfree-placeholder>div {
+  max-width: 780px;
+  width: 100%;
+}
+
+.wolfree-placeholder>div>div {
+  box-shadow: 0 0 10px 0 hsla(0, 0%, 80%, 0.5), 0 0 1px 0 hsla(0, 0%, 80%, 0.5);
+  border-radius: 5px;
+}
+
+.wolfree-placeholder>div>div>div {
+  min-height: 16vh;
+  background: #fdfdfd;
+  opacity: 1;
+  border-bottom: 1px solid transparent;
+}
+
+.wolfree-placeholder>div>div>div:nth-of-type(1)>div {
+  background-image: linear-gradient(90deg,
+      #f5f5f5 50%,
+      #ebebeb 60%,
+      #f5f5f5 70%);
+  border-top-left-radius: 5px;
+  border-top-right-radius: 5px;
+}
+
+.wolfree-placeholder>div>div>div:nth-of-type(2)>div {
+  background-image: linear-gradient(90deg,
+      #f5f5f5 30%,
+      #ebebeb 40%,
+      #f5f5f5 50%);
+}
+
+.wolfree-placeholder>div>div>div:nth-of-type(3)>div {
+  background-image: linear-gradient(90deg,
+      #f5f5f5 10%,
+      #ebebeb 20%,
+      #f5f5f5 30%);
+}
+
+.wolfree-placeholder>div>div>div>div {
+  height: 30px;
+  width: 100%;
+  display: flex;
+  flex-direction: row;
+  align-items: center;
+}
+
+.wolfree-placeholder>div>div>div>div {
+  background-size: 1200%;
+  -webkit-animation-duration: 3.5s;
+  animation-duration: 3.5s;
+  -webkit-animation-fill-mode: forwards;
+  animation-fill-mode: forwards;
+  -webkit-animation-iteration-count: infinite;
+  animation-iteration-count: infinite;
+  -webkit-animation-name: _QC3H;
+  animation-name: _QC3H;
+  -webkit-animation-timing-function: cubic-bezier(0.55, 0.45, 1, 1);
+  animation-timing-function: cubic-bezier(0.55, 0.45, 1, 1);
+}
+
+@keyframes _QC3H {
+  0% {
+    background-position: 100% 0;
+  }
+
+  to {
+    background-position: -100% 0;
+  }
+}
\ No newline at end of file
diff --git a/docusaurus/static/ajax/libs/wolfree/23.7.8/css/PodsParser.css b/docusaurus/static/ajax/libs/wolfree/23.7.8/css/PodsParser.css
new file mode 100644
index 0000000..179b1c6
--- /dev/null
+++ b/docusaurus/static/ajax/libs/wolfree/23.7.8/css/PodsParser.css
@@ -0,0 +1,125 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+.wolfree-pods {
+  display: flex;
+  width: 100%;
+  justify-content: center;
+  /* padding: 26px 0 20px; */
+  padding: 26px 0 0;
+}
+
+.wolfree-pods>div {
+  position: relative;
+}
+
+.wolfree-pods>div {
+  max-width: 780px;
+  width: 100%;
+}
+
+.wolfree-pods>div>div {
+  position: relative;
+}
+
+.wolfree-pods>div>div>section {
+  box-shadow: 0 0 10px 0 hsla(0, 0%, 80%, 0.5), 0 0 1px 0 hsla(0, 0%, 80%, 0.5);
+  border-radius: 5px;
+  /* margin-bottom: 20px; */
+  margin-bottom: 0;
+}
+
+.wolfree-pods>div>div>section>section {
+  border-top-color: transparent;
+}
+
+.wolfree-pods>div>div>section>section {
+  display: flex;
+  flex-direction: column;
+  position: relative;
+  background: #f5f5f5;
+  outline: none;
+  border-color: #fff transparent;
+  border-style: solid;
+  border-width: 1px;
+}
+
+.wolfree-pods>div>div>section>section:first-child {
+  border-top-left-radius: inherit;
+  border-top-right-radius: inherit;
+}
+
+.wolfree-pods>div>div>section>section>div:is(:first-child) {
+  min-height: 30px;
+  font-size: 13px;
+  font-family: WebRoboto, Hiragino Kaku Gothic ProN, ヒラギノ角ゴ ProN, Meiryo,
+    メイリオ, Arial, Helvetica, sans-serif;
+  background: #f5f5f5;
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+  padding: 6px 20px;
+}
+
+.wolfree-pods>div>div>section>section>div:is(:first-child)>h2 {
+  color: #678e9c;
+  margin-right: 20px;
+}
+
+.wolfree-pods>div>div>section>section>div:is(:first-child)>select {
+  /* We style this element manually. */
+  border-radius: 4px;
+  border-style: solid;
+  border-width: thin;
+  min-height: 20px;
+  cursor: pointer;
+  color: #ff6c00;
+  background-color: #fff;
+  border-color: #ec561a;
+  touch-action: manipulation;
+}
+
+.wolfree-pods>div>div>section>section>div:not(:first-child) {
+  display: flex;
+  align-items: flex-end;
+  width: 100%;
+  height: 100%;
+  background: #fff;
+  border-radius: inherit;
+  padding: 6px 20px;
+}
+
+.wolfree-pods>div>div>section>section>div:not(:first-child)>div {
+  position: relative;
+  flex: 1 1 auto;
+}
+
+.wolfree-pods>div>div>section>section>div:not(:first-child)>div>img {
+  max-width: 100%;
+  /* width: 100%; */
+  width: auto;
+}
+
+.wolfree-pods>div>div>section>section>div:not(:first-child)>div>div>details>summary {
+  /* We style this element manually. */
+  cursor: pointer;
+  touch-action: manipulation;
+}
+
+.wolfree-pods>div>div>section>section>div:not(:first-child)>div>div>details>div {
+  /* We style this element manually. */
+  padding: 1rem;
+  line-height: 2;
+  touch-action: manipulation;
+}
+
+.wolfree-pods>div>div>section>section>div:not(:first-child)>div>div>details>textarea {
+  /* We style this element manually. */
+  width: 99%;
+  height: 50vh;
+  touch-action: manipulation;
+}
\ No newline at end of file
diff --git a/docusaurus/static/ajax/libs/wolfree/23.7.8/js/AJAX.js b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/AJAX.js
new file mode 100644
index 0000000..465787d
--- /dev/null
+++ b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/AJAX.js
@@ -0,0 +1,56 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+// @ts-check
+
+import SearchParams from "./SearchParams.js";
+
+export default class AJAX {
+  ajax = async ({
+    input = String(),
+    i2d = Boolean(),
+    extraPodstates = Array(),
+  } = {}) => {
+    try {
+      const data = new SearchParams().getSearchParams({
+        input,
+        extraPodstates,
+        i2d,
+      });
+
+      const options = {
+        url: "https://api.wolframalpha.com/v2/query",
+        dataType: "jsonp",
+        traditional: true,
+        data,
+      };
+
+      try {
+        /**
+         * https://www.npmjs.com/package/@types/jquery
+         * @type {import('jQuery')}
+         */
+        const response = await jQuery.ajax(options);
+        return (
+          console.assert(response instanceof Object),
+          console.assert(response.hasOwnProperty("queryresult")),
+          { response }
+        );
+      } catch (error) {
+        return (
+          console.error(
+            { error },
+            "We encountered an issue while attempting to retrieve a response from the Wolfram Alpha API using the jQuery library."
+          ),
+          { error }
+        );
+      }
+    } catch (error) {
+      return console.error({ error }), { error };
+    }
+  };
+}
diff --git a/docusaurus/static/ajax/libs/wolfree/23.7.8/js/AppID.js b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/AppID.js
new file mode 100644
index 0000000..070e4e1
--- /dev/null
+++ b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/AppID.js
@@ -0,0 +1,57 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+// @ts-check
+
+// To generate a new AppID:
+//  1. Open Tor Browser and go to: https://products.wolframalpha.com/api/
+//  2. Click the orangish "Get API Access" button. You will go to: https://account.wolfram.com/login/oauth2/sign-in
+//  3. Click the reddish "Create one" hyperlink to create a new Wolfram ID. You will go to: https://account.wolfram.com/login/create
+//  4. Fill out the form using random alphanumeric characters.
+//  5. Click the reddish "Create Wolfram ID" button. You will go to: https://developer.wolframalpha.com/portal/myapps/index.html
+//  6. Click the orangish "Sign up to get your first AppID" button.
+//  7. Fill out the form using random alphanumeric characters.
+//  8. Click the orangish "Sign up" button.
+//  9. Click the orangish "Get an AppID" button.
+// 10. Fill out the form using random alphanumeric characters.
+// 11. Click the orangish "Get AppID" button.
+
+export default class AppID {
+  appIDArray = Array();
+
+  constructor(
+    appIDArray = ["H9V325-HTALUWHKGK", "AKJTJT-LR5LL8WTG6", "LKY83U-XW6ATU9URU"]
+  ) {
+    (this.appIDArray = appIDArray),
+      Array.from(this.appIDArray).forEach(
+        (appID) => (
+          console.assert(17 === appID.length),
+          console.assert(/[0-9A-Z]{6}-[0-9A-Z]{10}/.test(appID))
+        )
+      );
+  }
+
+  getAppID = ({
+    appID = this.appIDArray[this.getRandomInt() % this.appIDArray.length],
+  } = {}) => {
+    try {
+      return appID;
+    } catch (error) {
+      return console.error({ error }), String();
+    }
+  };
+
+  getRandomInt = ({
+    randomInt = crypto.getRandomValues(new Uint32Array(1))[0],
+  } = {}) => {
+    try {
+      return randomInt;
+    } catch (error) {
+      return console.error({ error }), Number();
+    }
+  };
+}
diff --git a/docusaurus/static/ajax/libs/wolfree/23.7.8/js/Entrypoint.js b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/Entrypoint.js
new file mode 100644
index 0000000..0fe9d31
--- /dev/null
+++ b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/Entrypoint.js
@@ -0,0 +1,26 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+// @ts-check
+
+import Processor from "./Processor.js";
+import Preprocessor from "./Preprocessor.js";
+import PostProcessor from "./PostProcessor.js";
+
+export default async ({
+  input = String(),
+  i2d = Boolean(),
+  extraPodstates = Array(),
+} = {}) => {
+  try {
+    new Preprocessor().process();
+    await new Processor().process({ input, i2d, extraPodstates });
+    new PostProcessor().process({ input, i2d });
+  } catch (error) {
+    console.error({ error });
+  }
+};
diff --git a/docusaurus/static/ajax/libs/wolfree/23.7.8/js/Placeholder.js b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/Placeholder.js
new file mode 100644
index 0000000..d5b45a6
--- /dev/null
+++ b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/Placeholder.js
@@ -0,0 +1,69 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+// @ts-check
+
+export default class Placeholder {
+  className = "wolfree-placeholder";
+
+  placeholderHTML = `
+      <div class="${this.className}">
+        <div>
+          <div>
+            <div><div></div></div>
+            <div><div></div></div>
+            <div><div></div></div>
+          </div>
+        </div>
+      </div>
+    `;
+
+  insert = ({
+    container = document.querySelector(
+      "html > body > #__next > div > main > main > div:nth-of-type(1)"
+    ),
+  } = {}) => {
+    try {
+      return (
+        container instanceof HTMLDivElement
+          ? container.insertAdjacentHTML("afterend", this.placeholderHTML)
+          : console.error({ container }),
+        { container }
+      );
+    } catch (error) {
+      return (
+        console.error(
+          { error },
+          "Fail to insert the skeleton placeholder components."
+        ),
+        { error }
+      );
+    }
+  };
+
+  remove = ({
+    allPlaceholders = document.querySelectorAll(
+      `html > body > #__next > div > main > main > div.${this.className}`
+    ),
+  } = {}) => {
+    try {
+      return (
+        console.assert(allPlaceholders.length === 1),
+        allPlaceholders.forEach((placeholder) => placeholder.remove()),
+        { allPlaceholders }
+      );
+    } catch (error) {
+      return (
+        console.error(
+          { error },
+          "Fail to remove the skeleton placeholder components."
+        ),
+        { error }
+      );
+    }
+  };
+}
diff --git a/docusaurus/static/ajax/libs/wolfree/23.7.8/js/Pods.js b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/Pods.js
new file mode 100644
index 0000000..7b31e48
--- /dev/null
+++ b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/Pods.js
@@ -0,0 +1,56 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+// @ts-check
+
+export default class Pods {
+  insert = ({
+    container = document.querySelector("main > div:nth-of-type(1)"),
+    html = String(),
+  } = {}) => {
+    try {
+      /**
+       * https://www.npmjs.com/package/@types/dompurify
+       * @type {import('DOMPurify')}
+       */
+      return (
+        container instanceof HTMLDivElement
+          ? container.insertAdjacentHTML(
+              "afterend",
+              globalThis.DOMPurify.sanitize(html)
+            )
+          : console.error({ container }),
+        { container, html }
+      );
+    } catch (error) {
+      return (
+        console.error(
+          { error },
+          "Fail to insert the results of the calculation."
+        ),
+        { error }
+      );
+    }
+  };
+
+  remove = ({
+    pods = document.querySelectorAll("main > div.wolfree-pods"),
+  } = {}) => {
+    try {
+      pods.forEach((element) => {
+        element.remove();
+      });
+      return { pods };
+    } catch (error) {
+      console.error(
+        "Fail to remove the results of the previous calculation.",
+        error
+      );
+      return { error };
+    }
+  };
+}
diff --git a/docusaurus/static/ajax/libs/wolfree/23.7.8/js/PodsParser.js b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/PodsParser.js
new file mode 100644
index 0000000..bfb0ab0
--- /dev/null
+++ b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/PodsParser.js
@@ -0,0 +1,201 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+// @ts-check
+
+export default class PodsParser {
+  parse = ({
+    input = String(),
+    i2d = Boolean(),
+    extraPodstates = Array(),
+    response = { queryresult: { pods: Array() } },
+  } = {}) => {
+    try {
+      return { html: this.buildHTML({ input, i2d, extraPodstates, response }) };
+    } catch (error) {
+      return console.error({ error }), { error };
+    }
+  };
+
+  buildHTML = ({
+    input = String(),
+    i2d = Boolean(),
+    extraPodstates = Array(),
+    response = { queryresult: { pods: Array() } },
+  } = {}) => {
+    return `
+      <div class="wolfree-pods">
+        <div>
+          <div>
+            <section>
+              ${this.parseQueryResult({ response })}
+              ${this.buildTechnicalInfo({
+                input,
+                i2d,
+                extraPodstates,
+                response,
+              })}
+            </section>
+          </div>
+        </div>
+      </div>
+    `;
+  };
+
+  parseQueryResult = ({ response = { queryresult: { pods: Array() } } }) => {
+    const { queryresult } = response;
+    const { pods } = queryresult;
+    if (pods) {
+      return pods.map(this.parsePod).join("");
+    }
+    return "";
+  };
+
+  parsePod = (
+    pod = {
+      title: String(),
+      states: Array(),
+      subpods: Array(),
+    }
+  ) => {
+    return `
+      <section>
+        ${this.buildPodHeader(pod)}
+        <div></div>
+        ${pod.subpods.map(this.buildSubpod).join("")}
+      </section>
+    `;
+  };
+
+  buildPodHeader = (pod = { title: String(), states: Array() }) => {
+    return `
+      <div>
+        <h2>${this.escapeHTML(pod.title)}</h2>
+        ${pod.states ? pod.states.map(this.buildSelectElement).join("") : ""}
+      </div>
+    `;
+  };
+
+  buildSubpod = (
+    subpod = { img: { src: String(), alt: String() }, plaintext: String() }
+  ) => {
+    return `
+      <div><div>
+        <img
+          src="${this.escapeHTML(subpod.img.src)}"
+          alt="${this.escapeHTML(subpod.img.alt)}"
+        >
+      </div></div>
+      <div style="font-family: monospace; overflow: auto;">
+        <div><div>${this.buildSubpodDetails(subpod)}</div></div>
+      </div>
+    `;
+  };
+
+  buildSubpodDetails = (subpod = { plaintext: String() }) => {
+    return `
+      <details>
+        <summary style="direction: rtl;"></summary>
+        <div><pre>${this.escapeHTML(subpod.plaintext)}</pre></div>
+        <br>
+      </details>
+    `;
+  };
+
+  buildSelectElement = (state = { value: String(), states: Array() }) => {
+    if (state.states) {
+      return `
+        <select name="pod-states">
+          <option>${this.escapeHTML(state.value)}</option>
+          ${state.states.map(this.buildOption).join("")}
+        </select>
+      `;
+    }
+    return "";
+  };
+
+  buildOption = (state = { name: String() }) => {
+    return `
+      <option>${this.escapeHTML(state.name)}</option>
+    `;
+  };
+
+  buildTechnicalInfo = ({
+    input = String(),
+    i2d = Boolean(),
+    extraPodstates = Array(),
+    response = { queryresult: { pods: Array() } },
+  }) => {
+    return `
+      <section>
+        <div><h2>Technical information</h2></div>
+        <div></div>
+        <div><div><div>${this.buildTechnicalInfoDetails({
+          input,
+          i2d,
+          extraPodstates,
+          response,
+        })}</div></div></div>
+        <div></div>
+      </section>
+    `;
+  };
+
+  buildTechnicalInfoDetails = ({
+    input = String(),
+    i2d = Boolean(),
+    extraPodstates = Array(),
+    response = { queryresult: { pods: Array() } },
+  }) => {
+    return `
+      <details>
+        <div>
+          If you have programming knowledge, feel free to explore the technical information provided below:
+        </div>
+        ${this.buildTextarea({ input, i2d, extraPodstates, response })}
+      </details>
+    `;
+  };
+
+  buildTextarea = ({
+    input = String(),
+    i2d = Boolean(),
+    extraPodstates = Array(),
+    response = { queryresult: { pods: Array() } },
+  }) => {
+    return `
+      <textarea name="technical-information">${this.escapeHTML(
+        JSON.stringify(
+          {
+            document,
+            input,
+            i2d,
+            extraPodstates,
+            response,
+          },
+          null,
+          4
+        )
+      )}</textarea>
+    `;
+  };
+
+  escapeHTML = (unsafe = String()) => {
+    return unsafe
+      .replace(/&/g, "&amp;")
+      .replace(/</g, "&lt;")
+      .replace(/>/g, "&gt;")
+      .replace(/"/g, "&quot;")
+      .replace(/'/g, "&#039;");
+  };
+}
+
+// Can I escape HTML special chars in JavaScript? - Stack Overflow
+// https://stackoverflow.com/questions/6234773/can-i-escape-html-special-chars-in-javascript
+
+// test case:
+// https://www.wolframalpha.com/input?i=solve+%7By%27%28x%29+%3D+-2+y%2C+y%280%29%3D1%7D+from+0+to+10+using+r+k+f+algorithm
diff --git a/docusaurus/static/ajax/libs/wolfree/23.7.8/js/PostProcessor.js b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/PostProcessor.js
new file mode 100644
index 0000000..1061d8a
--- /dev/null
+++ b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/PostProcessor.js
@@ -0,0 +1,63 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+// @ts-check
+
+import Placeholder from "./Placeholder.js";
+import Entrypoint from "./Entrypoint.js";
+
+export default class PostProcessor {
+  process = ({ input = String(), i2d = Boolean() } = {}) => {
+    try {
+      new Placeholder().remove();
+
+      try {
+        document
+          .querySelectorAll(
+            "html > body > div#__next > div > main > main > div.wolfree-pods > div > div > section > section > div > div > div > details > div"
+          )
+          .forEach((element = new HTMLElement()) =>
+            element.setAttribute("contenteditable", "")
+          );
+      } catch (error) {
+        console.error(
+          "Fail to make the plaintext in details tags easy to copy.",
+          error
+        );
+      }
+
+      try {
+        document
+          .querySelectorAll(
+            "html > body > div#__next > div > main > main > div.wolfree-pods > div > div > section > section > div:is(:first-child) > select"
+          )
+          .forEach((element = new HTMLSelectElement()) =>
+            element.addEventListener(
+              "change",
+              async (event = new Event(String())) =>
+                Entrypoint({
+                  input,
+                  i2d,
+                  extraPodstates: [
+                    event.target instanceof HTMLSelectElement
+                      ? event.target.value
+                      : (console.error({ event }), String()),
+                  ],
+                })
+            )
+          );
+      } catch (error) {
+        console.error(
+          "Fail to set up the drop-down menu for problem-solving strategies.",
+          error
+        );
+      }
+    } catch (error) {
+      console.error({ error });
+    }
+  };
+}
diff --git a/docusaurus/static/ajax/libs/wolfree/23.7.8/js/Preprocessor.js b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/Preprocessor.js
new file mode 100644
index 0000000..5d88bbc
--- /dev/null
+++ b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/Preprocessor.js
@@ -0,0 +1,29 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+// @ts-check
+
+import Placeholder from "./Placeholder.js";
+import Pods from "./Pods.js";
+
+export default class Preprocessor {
+  process = () => {
+    try {
+      try {
+        window.scroll(0, 0);
+      } catch (error) {
+        console.error({ error }, "Fail to scroll to the top of the webpage.");
+      }
+
+      new Placeholder().insert();
+
+      new Pods().remove();
+    } catch (error) {
+      console.error({ error });
+    }
+  };
+}
diff --git a/docusaurus/static/ajax/libs/wolfree/23.7.8/js/Processor.js b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/Processor.js
new file mode 100644
index 0000000..eaf9c2a
--- /dev/null
+++ b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/Processor.js
@@ -0,0 +1,54 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+// @ts-check
+
+import AJAX from "./AJAX.js";
+import PodsParser from "./PodsParser.js";
+import Pods from "./Pods.js";
+
+export default class Processor {
+  process = async ({
+    input = String(),
+    i2d = Boolean(),
+    extraPodstates = Array(),
+  } = {}) => {
+    try {
+      const { response } = await new AJAX().ajax({
+        input,
+        i2d,
+        extraPodstates,
+      });
+
+      try {
+        const { html } = new PodsParser().parse({
+          input,
+          i2d,
+          extraPodstates,
+          /** @type {any} */
+          response,
+        });
+
+        try {
+          new Pods().remove();
+        } catch (error) {
+          console.error(error);
+        }
+
+        try {
+          new Pods().insert({ html });
+        } catch (error) {
+          console.error(error);
+        }
+      } catch (error) {
+        console.error(error);
+      }
+    } catch (error) {
+      console.error(error);
+    }
+  };
+}
diff --git a/docusaurus/static/ajax/libs/wolfree/23.7.8/js/SearchParams.js b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/SearchParams.js
new file mode 100644
index 0000000..828d06f
--- /dev/null
+++ b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/SearchParams.js
@@ -0,0 +1,44 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+// @ts-check
+
+import AppID from "./AppID.js";
+
+export default class SearchParams {
+  constructor({ getAppID = new AppID().getAppID } = {}) {
+    this.getAppID = getAppID;
+  }
+
+  getSearchParams = ({
+    input = String(),
+    i2d = Boolean(),
+    extraPodstates = Array(),
+  } = {}) => {
+    const appid = this.getAppID();
+    return {
+      ...(appid && { appid }),
+      ...(input && { input }),
+      ...(i2d && { i2d }),
+      podstate: [
+        "Step-by-step solution",
+        "Step-by-step",
+        "Show all steps",
+        ...extraPodstates,
+        // Note: extraPodstates must be the last item in the array.
+        // Otherwise, the Wolfram Alpha API may ignore the pod states in extraPodstates.
+      ],
+      output: "json",
+      reinterpret: true,
+      podtimeout: 30,
+      scantimeout: 30,
+      parsetimeout: 30,
+      totaltimeout: 30,
+      formattimeout: 30,
+    };
+  };
+}
diff --git a/docusaurus/static/ajax/libs/wolfree/23.7.8/js/onload.js b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/onload.js
new file mode 100644
index 0000000..5767c4e
--- /dev/null
+++ b/docusaurus/static/ajax/libs/wolfree/23.7.8/js/onload.js
@@ -0,0 +1,51 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+// @ts-check
+
+export default addEventListener(
+  "load",
+  () => (
+    setTimeout(
+      () =>
+        document
+          .querySelectorAll(
+            "html > body > #__next > div > main > main > div > div > section > form > div > div > input"
+          )
+          .forEach((input) =>
+            input instanceof HTMLInputElement
+              ? input.focus()
+              : console.error({ input })
+          ),
+      1000
+    ),
+    [
+      () =>
+        document
+          .querySelectorAll(
+            'html > body > #__next > div > main > main > div > div > div > section > section > div:is(:first-child) > ul > li'
+          )
+          .forEach(
+            (li) =>
+              li.innerHTML.includes("Step-by-step") &&
+              (li instanceof HTMLElement
+                ? (li.style.display = "none")
+                : console.error({ li }))
+          ),
+      () =>
+        (document.title = document.title.replace(
+          "- Wolfram|Alpha",
+          "- Free Wolfram|Alpha Step-by-step Solution - Wolfree"
+        )),
+    ].forEach(
+      (callback) => (
+        setInterval(callback, 2000), addEventListener("click", callback)
+      )
+    ),
+    scroll(0, 0)
+  )
+);
diff --git a/docusaurus/static/instances.json b/docusaurus/static/instances.json
new file mode 100644
index 0000000..30ac2ea
--- /dev/null
+++ b/docusaurus/static/instances.json
@@ -0,0 +1,41 @@
+{
+  "wolfree": {
+    "clearnet": [
+      "https://wolfree.chickenkiller.com/",
+      "https://wolfree.crabdance.com/",
+      "https://wolfree.gitlab.io/",
+      "https://wolfree.glitch.me/",
+      "https://wolfree.ignorelist.com/",
+      "https://wolfree.jumpingcrab.com/",
+      "https://wolfree.my.to/",
+      "https://wolfree.netlify.app/",
+      "https://wolfree.on.fleek.co/",
+      "https://wolfree.onrender.com/",
+      "https://wolfree.pages.dev/",
+      "https://wolfree.privatedns.org/",
+      "https://wolfree.strangled.net/",
+      "https://wolfree.twilightparadox.com/",
+      "https://wolfree.uk.to/",
+      "https://wolfree.us.to/",
+      "https://wolfreealpha.chickenkiller.com/",
+      "https://wolfreealpha.crabdance.com/",
+      "https://wolfreealpha.gitlab.io/",
+      "https://wolfreealpha.glitch.me/",
+      "https://wolfreealpha.ignorelist.com/",
+      "https://wolfreealpha.jumpingcrab.com/",
+      "https://wolfreealpha.my.to/",
+      "https://wolfreealpha.netlify.app/",
+      "https://wolfreealpha.on.fleek.co/",
+      "https://wolfreealpha.onrender.com/",
+      "https://wolfreealpha.pages.dev/",
+      "https://wolfreealpha.privatedns.org/",
+      "https://wolfreealpha.strangled.net/",
+      "https://wolfreealpha.twilightparadox.com/",
+      "https://wolfreealpha.uk.to/",
+      "https://wolfreealpha.us.to/"
+    ],
+    "tor": [],
+    "i2p": [],
+    "loki": []
+  }
+}
diff --git a/docusaurus/static/n/v1/api/autocomplete/index.html b/docusaurus/static/n/v1/api/autocomplete/index.html
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/docusaurus/static/n/v1/api/autocomplete/index.html
diff --git a/docusaurus/static/n/v1/api/randomizer b/docusaurus/static/n/v1/api/randomizer
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/docusaurus/static/n/v1/api/randomizer
diff --git a/docusaurus/static/n/v1/api/samplefiles/fileinput/examples b/docusaurus/static/n/v1/api/samplefiles/fileinput/examples
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/docusaurus/static/n/v1/api/samplefiles/fileinput/examples
diff --git a/docusaurus/static/n/v1/api/sourcer/dataSources b/docusaurus/static/n/v1/api/sourcer/dataSources
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/docusaurus/static/n/v1/api/sourcer/dataSources
diff --git a/docusaurus/static/n/v1/api/sourcer/index.html b/docusaurus/static/n/v1/api/sourcer/index.html
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/docusaurus/static/n/v1/api/sourcer/index.html
diff --git a/docusaurus/static/users/me/account b/docusaurus/static/users/me/account
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/docusaurus/static/users/me/account
diff --git a/docusaurus/tsconfig.json b/docusaurus/tsconfig.json
new file mode 100644
index 0000000..50e4989
--- /dev/null
+++ b/docusaurus/tsconfig.json
@@ -0,0 +1,18 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+// @ts-check
+
+{
+  // This file is not used in compilation. It is here just for a nice editor experience.
+  "extends": "@tsconfig/docusaurus/tsconfig.json",
+  "compilerOptions": {
+    "baseUrl": ".",
+    "strict": true,
+    "forceConsistentCasingInFileNames": true
+  }
+}
diff --git a/rust/wolfree_libredirect_patch/Cargo.toml b/rust/wolfree_libredirect_patch/Cargo.toml
new file mode 100644
index 0000000..5b587d5
--- /dev/null
+++ b/rust/wolfree_libredirect_patch/Cargo.toml
@@ -0,0 +1,21 @@
+# SPDX-License-Identifier: AGPL-3.0-or-later
+# This file is part of Wolfree.
+# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+[package]
+name = "wolfree_libredirect_patch"
+version = "23.7.31"
+edition = "2021"
+
+authors = ["See the commit history of the Git repositories: <https://try.gitea.io/wolfree>"]
+description = "The Rust crate provides lightweight wrappers around the `fs::write` and `fs::remove_dir_all` functions from the standard library's `fs` module."
+license = "AGPL-3.0-or-later"
+repository = "https://try.gitea.io/wolfree"
+readme = "README.md"
+keywords = ["rust", "wrapper", "write", "remove", "file"]
+categories = ["command-line-utilities", "development-tools::build-utils", "web-programming"]
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+markdown = "1.0.0-alpha"
diff --git a/rust/wolfree_libredirect_patch/src/body.md b/rust/wolfree_libredirect_patch/src/body.md
new file mode 100644
index 0000000..69ccfc1
--- /dev/null
+++ b/rust/wolfree_libredirect_patch/src/body.md
@@ -0,0 +1,68 @@
+# Paywall-Respecting Instances: Wolfree instances that do not bypass any paywall
+
+Welcome to Paywall-Respecting Instances, where we provide Wolfree instances that **do not bypass any paywall**.
+
+## The Problem with Other Wolfree Instances
+
+Most other Wolfree instances can bypass paywalls, which raises concerns about Microsoft GitHub's [DMCA Takedown Policy](https://docs.github.com/en/site-policy/content-removal-policies/dmca-takedown-policy).
+
+Unfortunately, this means that developers of [LibRedirect](https://libredirect.github.io/) cannot redirect users to such instances.
+
+To learn more about this issue, please refer to [issue #425](https://github.com/libredirect/browser_extension/issues/425) on Microsoft GitHub.
+
+## The Solution: Paywall-Respecting Instances
+
+Unlike other Wolfree instances, Paywall-Respecting Instances prioritize ethical practices and **do not bypass any paywall**. So developers of LibRedirect can confidently redirect their users to Paywall-Respecting Instances.
+
+## Instance List
+
+Here are some Paywall-Respecting Instances you can access:
+
+1. https://gqq.gitlab.io/
+2. https://jqq.gitlab.io/
+3. https://rqq.gitlab.io/
+4. https://sqq.gitlab.io/
+5. https://uqq.gitlab.io/
+
+JSON: [instances.json](/instances.json)
+
+## Source Code
+
+Paywall-Respecting Instances is free and open-source software. You can access and download its source code from the following websites:
+
+1. https://try.gitea.io/wolfree
+2. https://codeberg.org/wolfree
+3. https://git.disroot.org/wolfree
+4. https://next.forgejo.org/wolfree
+5. https://git.kiwifarms.net/wolfree
+6. http://it7otdanqu7ktntxzm427cba6i53w6wlanlh23v5i3siqmos47pzhvyd.onion/wolfree
+
+SPDX-License-Identifier: AGPL-3.0-or-later
+
+This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+## How it Works
+
+1. Install [LibRedirect](https://libredirect.github.io/) on your web browser.
+2. LibRedirect automatically redirects you from Wolfram to our instances, safeguarding your privacy.
+3. Enjoy accessing Wolfree instances that uphold ethical practices and **do not bypass any paywall**.
+
+## Key Features
+
+### Compliance with Microsoft GitHub
+
+Paywall-Respecting Instances **do not bypass any paywall**, empowering LibRedirect developers with the confidence to redirect users to our instances.
+
+### Protect Your Privacy
+
+Once you install LibRedirect on your web browser, LibRedirect automatically redirects you from Wolfram to our instances, securing your digital privacy.
+
+### Ethical Practices
+
+By accessing our instances, you actively promote ethical practices and support the work of content creators.
+
+## Get Started Now!
+
+Install LibRedirect to access Paywall-Respecting Instances. Enjoy Wolfree instances that **do not bypass any paywall**.
+
+- [Install LibRedirect](https://libredirect.github.io/)
diff --git a/rust/wolfree_libredirect_patch/src/head.html b/rust/wolfree_libredirect_patch/src/head.html
new file mode 100644
index 0000000..d67963c
--- /dev/null
+++ b/rust/wolfree_libredirect_patch/src/head.html
@@ -0,0 +1,43 @@
+<!DOCTYPE html>
+<html lang="en">
+
+<head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta name="description"
+        content="With our seamless integration with LibRedirect, a web browser extension that protects your digital privacy, you can ensure that your access to Wolfree instances preserves your privacy and complies with Microsoft GitHub's DMCA Takedown Policy." />
+    <title>
+        Wolfree instances that do not bypass any paywall | Paywall-Respecting Instances
+    </title>
+    <style>
+        html {
+            margin: 1rem;
+            font-family: sans-serif;
+        }
+
+        body {
+            max-width: 30rem;
+            margin: 5rem auto;
+        }
+
+        h1,
+        h2 {
+            margin-top: 5rem;
+            line-height: 1.5;
+        }
+
+        p,
+        li {
+            line-height: 2;
+        }
+
+        a {
+            text-decoration: none;
+            word-wrap: break-word;
+        }
+    </style>
+    <link rel="icon" href="data:," />
+</head>
+
+</html>
+<!-- SPDX-License-Identifier: AGPL-3.0-or-later -->
\ No newline at end of file
diff --git a/rust/wolfree_libredirect_patch/src/instances.json b/rust/wolfree_libredirect_patch/src/instances.json
new file mode 100644
index 0000000..8cdd008
--- /dev/null
+++ b/rust/wolfree_libredirect_patch/src/instances.json
@@ -0,0 +1,14 @@
+{
+  "wolfree": {
+    "clearnet": [
+      "https://gqq.gitlab.io/",
+      "https://jqq.gitlab.io/",
+      "https://rqq.gitlab.io/",
+      "https://sqq.gitlab.io/",
+      "https://uqq.gitlab.io/"
+    ],
+    "tor": [],
+    "i2p": [],
+    "loki": []
+  }
+}
diff --git a/rust/wolfree_libredirect_patch/src/main.rs b/rust/wolfree_libredirect_patch/src/main.rs
new file mode 100644
index 0000000..65f1b93
--- /dev/null
+++ b/rust/wolfree_libredirect_patch/src/main.rs
@@ -0,0 +1,95 @@
+//! The Rust crate provides lightweight wrappers around the `fs::write` and `fs::remove_dir_all` functions from the standard library's `fs` module.
+//! The crate is designed to simplify file writing and directory removal operations by encapsulating the error handling logic and providing a more convenient interface.
+//! It is particularly useful for tasks that involve writing multiple files or removing directories with their contents.
+
+#![allow(clippy::blanket_clippy_restriction_lints)]
+#![allow(clippy::exit)]
+#![allow(clippy::print_stderr)]
+#![allow(clippy::implicit_return)]
+
+/* SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+use markdown::to_html_with_options;
+use markdown::Options;
+use std::fs;
+
+/// A lightweight wrapper around `fs::write`.
+fn wolfree_write(file_path: &str, contents: &str) {
+    match fs::write(file_path, contents) {
+        Ok(_) => (),
+        Err(err) => {
+            eprintln!("Error: {err}",);
+            std::process::exit(1);
+        }
+    };
+}
+
+/// A lightweight wrapper around `fs::remove_dir_all`.
+fn wolfree_remove_dir_all(dir_path: &str) {
+    match fs::remove_dir_all(dir_path) {
+        Ok(_) => (),
+        Err(err) => {
+            eprintln!("Error: {err}",);
+            std::process::exit(1);
+        }
+    };
+}
+
+/// A lightweight wrapper around `markdown::to_html_with_options`.
+fn wolfree_to_html_with_options(value: &str) -> String {
+    match to_html_with_options(value, &Options::gfm()) {
+        Ok(result) => result,
+        Err(err) => {
+            eprintln!("Error: {err}",);
+            std::process::exit(1);
+        }
+    }
+}
+
+/// Entry point of the program.
+fn main() {
+    wolfree_write(
+        "./docusaurus/build/ajax/libs/wolfree/23.7.8/js/Entrypoint.js",
+        "export default () => {}",
+    );
+    wolfree_write(
+        "./docusaurus/build/index.html",
+        &format!(
+            "{}{}",
+            include_str!("head.html"),
+            wolfree_to_html_with_options(include_str!("body.md")),
+        ),
+    );
+    wolfree_write(
+        "./docusaurus/build/instances.json",
+        include_str!("instances.json"),
+    );
+    wolfree_write(
+        "./docusaurus/build/404.html",
+        "<script>location='/'</script>",
+    );
+    wolfree_write(
+        "./docusaurus/build/acknowledgment/index.html",
+        "<script>location='/'</script>",
+    );
+    wolfree_write(
+        "./docusaurus/build/community/index.html",
+        "<script>location='/'</script>",
+    );
+    wolfree_write(
+        "./docusaurus/build/dmca/index.html",
+        "<script>location='/'</script>",
+    );
+    wolfree_write(
+        "./docusaurus/build/mirror/index.html",
+        "<script>location='/'</script>",
+    );
+    wolfree_write(
+        "./docusaurus/build/source/index.html",
+        "<script>location='/'</script>",
+    );
+    wolfree_remove_dir_all("./docusaurus/build/assets/");
+}
diff --git a/rust/wolfree_sed_in_place/Cargo.toml b/rust/wolfree_sed_in_place/Cargo.toml
new file mode 100644
index 0000000..ab2b32f
--- /dev/null
+++ b/rust/wolfree_sed_in_place/Cargo.toml
@@ -0,0 +1,22 @@
+# SPDX-License-Identifier: AGPL-3.0-or-later
+# This file is part of Wolfree.
+# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+[package]
+name = "wolfree_sed_in_place"
+version = "23.7.31"
+edition = "2021"
+
+authors = ["See the commit history of the Git repositories: <https://try.gitea.io/wolfree>"]
+description = "This Rust program performs in-place search and replaces operations on all files within specified directories. It uses regular expressions to find occurrences of a given pattern in each file's contents and replaces them with the replacement text."
+license = "AGPL-3.0-or-later"
+repository = "https://try.gitea.io/wolfree"
+readme = "README.md"
+keywords = ["rust", "search", "replace", "regular expressions", "regex", "file", "in-place"]
+categories = ["command-line-utilities", "development-tools::build-utils", "web-programming", "template-engine"]
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+regex = "1"
+walkdir = "2"
diff --git a/rust/wolfree_sed_in_place/src/include_str.html b/rust/wolfree_sed_in_place/src/include_str.html
new file mode 100644
index 0000000..2fbe0f4
--- /dev/null
+++ b/rust/wolfree_sed_in_place/src/include_str.html
@@ -0,0 +1,76 @@
+<meta name="referrer" content="no-referrer" />
+
+<script type="module" src="/ajax/libs/jquery/3.7.0/jquery.min.js"></script>
+<script type="module" src="/ajax/libs/dompurify/3.0.5/purify.min.js"></script>
+<script type="module" src="/ajax/libs/wolfree/23.7.8/js/onload.js"></script>
+
+<link rel="preload" as="style" onload="this.onload = null; this.rel = 'stylesheet';"
+    href="/ajax/libs/wolfree/23.7.8/css/Placeholder.css" />
+<link rel="preload" as="style" onload="this.onload = null; this.rel = 'stylesheet';"
+    href="/ajax/libs/wolfree/23.7.8/css/PodsParser.css" />
+
+<style>
+    html>body>#__next>div>header {
+        visibility: hidden;
+        height: 5rem;
+    }
+
+    html>body>#__next>div>footer {
+        visibility: hidden;
+    }
+
+    html>body>#__next>div>main>main>span,
+    html>body>#__next>div>main>main a[href*="/pro/pricing/students/"],
+    html>body>#__next>div>main>main a[href*="/pro/pricing/students/"]~*,
+    html>body>#__next>div>main>main>div>a,
+    html>body>#__next>div>main>main>div>a>img[src*="../_next/static/images/Logo_"][alt*="WolframAlpha computational knowledge AI"],
+    html>body>#__next>div>main>main>div>div>nav>a~button,
+    html>body>#__next>div>main>main>div>div>nav>div>div>ul>li~li~li,
+    /* Derivative[9][y][x] == y[x] */
+    html>body>#__next>div>main>main>div>div>div[class=""],
+    html>body>#__next>div>main>main>div>div>div>section>section> :not(div, ul, header, button),
+    /* Wolfram|Alpha Copyable Plain Text */
+    html>body>#__next>div>main>main>div>div>div>section>section>header>h2> :not(span),
+    html>body>#__next>div>main>main>div>div>div>section>section>div> :not(h2, select, span, div),
+    html>body>#__next>div>main>main>div>div>div>section>section>div>div> :not(img, button, div, a),
+    html>body>#__next>div>main>main a[href*="/pro/pricing/"],
+    html>body>#__next>div>main>main a[href*="/pro/pricing/"]~*,
+    html>body>#__next>div>main>main a[href*="/pro-premium-expert-support"],
+    html>body>#__next>div>main>main a[href*="/pro-premium-expert-support"]~*,
+    /* "isGDPR": true */
+    html>body>#__next>div>section {
+        display: none;
+    }
+
+    html>body>header {
+        position: absolute;
+        width: 100%;
+        z-index: 1;
+    }
+
+    html>body>header>nav {
+        text-align: center;
+        display: flex;
+        max-width: 780px;
+        margin: auto;
+    }
+
+    html>body>header>nav>a {
+        font-family: sans-serif;
+        text-decoration: none;
+        flex: auto;
+        margin: 1rem 0;
+        padding: 1rem 0;
+    }
+</style>
+
+$0
+
+<header>
+    <nav>
+        <a href="../">Wolfree</a>
+        <a href="../mirror">Mirror</a>
+        <a href="../source">Source</a>
+    </nav>
+</header>
+<!-- SPDX-License-Identifier: AGPL-3.0-or-later -->
\ No newline at end of file
diff --git a/rust/wolfree_sed_in_place/src/include_str.tsx b/rust/wolfree_sed_in_place/src/include_str.tsx
new file mode 100644
index 0000000..3c8ff4e
--- /dev/null
+++ b/rust/wolfree_sed_in_place/src/include_str.tsx
@@ -0,0 +1,71 @@
+/**
+ * @license
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+// @ts-check
+
+const wolfreeLexicalScopeName = (() => {
+  const possibleLetters = Array();
+
+  for (let i = 32; i < 127; i++) {
+    possibleLetters.push(String.fromCharCode(i));
+  }
+
+  const possibleNames = possibleLetters.flatMap((x) =>
+    possibleLetters.map((y) => x + y)
+  );
+
+  const isValid = (name = String()) => {
+    try {
+      return (
+        typeof eval(name).value === "string" &&
+        typeof eval(name).i2d === "boolean"
+      );
+    } catch (error) {
+      return false;
+    }
+  };
+
+  const wolfreeLexicalScopeName = possibleNames.find(isValid);
+
+  if (typeof wolfreeLexicalScopeName !== "string") {
+    console.error({ wolfreeLexicalScopeName });
+    return "";
+  }
+
+  return wolfreeLexicalScopeName;
+})();
+
+(() => {
+  const get = (params = String()) => {
+    return new URLSearchParams(location.search).get(params);
+  };
+
+  eval(wolfreeLexicalScopeName).value = get("i") || "topic mathematics";
+  eval(wolfreeLexicalScopeName).i2d = get("i2d") === "true";
+})();
+
+/**
+ * Regex in regex - Rust
+ * https://docs.rs/regex/latest/regex/struct.Regex.html#replacement-string-syntax
+ * All instances of $ref in the replacement string are replaced with the substring corresponding to the capture group identified by ref.
+ * ref may be an integer corresponding to the index of the capture group (counted by order of opening parenthesis where 0 is the entire match) or it can be a name (consisting of letters, digits or underscores) corresponding to a named capture group.
+ */
+// @ts-ignore
+$0;
+
+(async () => {
+  (
+    await import(
+      // @ts-ignore
+      "../../../ajax/libs/wolfree/23.7.8/js/Entrypoint.js"
+    )
+  ).default({
+    input: eval(wolfreeLexicalScopeName).value,
+    i2d: eval(wolfreeLexicalScopeName).i2d,
+    extraPodstates: [],
+  });
+})();
diff --git a/rust/wolfree_sed_in_place/src/main.rs b/rust/wolfree_sed_in_place/src/main.rs
new file mode 100644
index 0000000..7d56889
--- /dev/null
+++ b/rust/wolfree_sed_in_place/src/main.rs
@@ -0,0 +1,115 @@
+//! The `wolfree_sed_in_place` crate provides a function for performing in-place replacements of patterns in multiple files using regular expressions.
+//! It allows you to recursively process all files within a specified directory and replace occurrences of a given pattern with a specified replacement string.
+
+#![allow(clippy::blanket_clippy_restriction_lints)]
+#![allow(clippy::exit)]
+#![allow(clippy::print_stderr)]
+#![allow(clippy::implicit_return)]
+
+/* SPDX-License-Identifier: AGPL-3.0-or-later
+ * This file is part of Wolfree.
+ * This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ */
+
+use regex::Regex;
+use std::fs;
+use walkdir::WalkDir;
+
+/// Perform in-place replacements on files in a given directory, using regular expressions.
+///
+/// This function walks through all the files in the specified `directory_path`,
+/// filters out directories, and applies a regular expression-based replacement
+/// on the contents of each file.
+///
+/// # Arguments
+///
+/// * `directory_path`: A string slice representing the path of the directory to traverse.
+/// * `pattern`: A string slice containing the regular expression pattern to search for.
+/// * `replacement`: A string slice representing the replacement for each matched pattern.
+///
+/// # Examples
+///
+/// ```rust
+/// // Replace a specific pattern in the file contents in the "./data/" directory.
+/// wolfree_sed_in_place("./data/", r"\bFoo\b", "Bar");
+/// ```
+///
+/// This example replaces all occurrences of the word "Foo" with "Bar" in the files inside the "data" directory.
+fn wolfree_sed_in_place(directory_path: &str, pattern: &str, replacement: &str) {
+    // Compile the regular expression pattern
+    let regex = match Regex::new(pattern) {
+        Ok(re) => re,
+        Err(err) => {
+            eprintln!("Error: {err}",);
+            std::process::exit(1);
+        }
+    };
+
+    // Create a directory walker and filter out non-file entries
+    let walker = WalkDir::new(directory_path)
+        .into_iter()
+        .filter_map(Result::ok)
+        .filter(|entry| !entry.file_type().is_dir());
+
+    // Process each file in the directory
+    for entry in walker {
+        let file_path = entry.path();
+
+        // Read the file's contents into a string
+        let file_contents = match fs::read_to_string(file_path) {
+            Ok(contents) => contents,
+            Err(err) => {
+                eprintln!("Error: {err}",);
+                std::process::exit(1);
+            }
+        };
+
+        // Perform the regex replacement on the file's contents
+        let modified_contents = regex.replace(&file_contents, replacement);
+        let modified_contents_as_ref = modified_contents.as_ref();
+
+        // Write the modified contents back to the file, overwriting its previous contents
+        match fs::write(file_path, modified_contents_as_ref) {
+            Ok(_) => (),
+            Err(err) => {
+                eprintln!("Error: {err}",);
+                std::process::exit(1);
+            }
+        };
+    }
+}
+
+/// Entry point of the program.
+/// Demonstrates using `wolfree_sed_in_place` function to perform in-place replacements on files in specific directories.
+fn main() {
+    wolfree_sed_in_place(
+        "./docusaurus/build/input/",
+        "</head><body>",
+        include_str!("include_str.html"),
+    );
+
+    wolfree_sed_in_place(
+        "./docusaurus/build/_next/static/chunks/",
+        r"try(.{0,100}?)generateEncodedJSONFromValue(.*?)unescapeForUrl(.*?)catch(.*?)\{}",
+        include_str!("include_str.tsx"),
+    );
+
+    // console error:
+    //     _app-daabd76ef4fe402d.js:5
+    //     WebSocket connection to 'wss://localhost/n/v1/api/fetcher/results' failed:
+    //     startWebsocket @ _app-daabd76ef4fe402d.js:5
+    //     send           @ _app-daabd76ef4fe402d.js:5
+    //     sendMessage    @ 1695-ae743311a23f8eb5.js:1
+    //     newQuery       @ 1695-ae743311a23f8eb5.js:78
+    //     newQuery       @ 1695-ae743311a23f8eb5.js:78
+    // fix:
+    //     Override the hostname in the minified JavaScript source code.
+    wolfree_sed_in_place(
+        "./docusaurus/build/_next/static/chunks/pages/",
+        "window.location.hostname",
+        "'www.wolframalpha.com'",
+    );
+}
+
+// regex101: build, test, and debug regex
+// https://regex101.com/