(I built this before the message content intent and before slash commands were a big deal. If you want to host your own copy of the bot, I strongly recommend adding slash command support. If you make a PR with slash command support, I'll give you a cookie :)

1. Install docker, python, and discord.py
2. Add a playground directory at discord/playground
3. Update launcher.template.sh
   1. You can get a token from discord.com/developers/applications
   2. Set the environment to MASTER
   3. Add a callback webhook for logging new executions and guild joins
4. Run the launcher script

Adding languages is supposed to be fairly streamlined. In theory, any language is supported.

The last two steps are "vanity" steps and probably aren't necessary to make the new language work. Probably.

1. Decide on an extension for the language. For example, rust is rs.
2. Design a regex string to detect when a syntax-highlighted code block is in a message. See discord/playground.py/_exec()
3. Add a new Dockerfile in discord/dockerfiles to run the code. Look at the existing Dockerfiles for inspiration. At a minimum, a new Dockerfile needs to
   1. Be named extension-Dockerfile (e.g. rs-Dockerfile)
   2. Install dependencies to compile/run the code
   3. Accept a MESSAGE_ID build arg
   4. Import the code from the discord/playground directory based on the MESSAGE_ID build arg
   5. (If the language is compiled) compile the code
   6. Run the code
4. If you want to add code wrapping (e.g. wrapping a main() function around snippets), add that to the dictionary in discord/code_processing.py
5. Add an emoji to represent the language in the callback. The emoji should be in discord/playground.py/__init__() and discord/help.py/__init__()

Do whatever you want. unlicense.org

This is free and unencumbered software released into the public domain.

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means.

In jurisdictions that recognize copyright laws, the author or authors
of this software dedicate any and all copyright interest in the
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of the public at large and to the detriment of our heirs and
successors. We intend this dedication to be an overt act of
relinquishment in perpetuity of all present and future rights to this
software under copyright law.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.

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queue.bot/link/discord feel free to drop me a DM (no need to send a friend request)