[Octelly]

• I have read and followed the Contribution Guidelines.
• I have read and followed the AI Policy.
• I have read and followed the Coding Guidelines to the best of my ability.
• I have put [HUMANMADE] in the title if the pr was human-made

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Summary

Adds a Nix flake, proper CI support and all. Will probably be making a separate PR for Nix/Home-Manager modules later.

Type of change

• Bug fix
• Game compatibility / game-support
• Performance
• New feature
• Refactor / cleanup
• CI / build
• Documentation

Related issues

n/a

Testing

note: Only kept platforms where Nix is available

• Tested on Linux
• Tested on macOS (CI builds, don't have a Mac though)

Checklist

• I built it locally and it compiles without new warnings
• I did not add any copyrighted game data, keys or firmware
• Docs updated if needed
• I added AI Disclosure if one was used

[Octelly]

Also I have already added the required CI secrets in repo settings. Namely:

• Discord developer webhook, separate from the existing one, goes to #CI-alerts
• Cachix token + cache name (latter is just a variable)

[Octelly]

@PastaLaPate the entire ci.yml blame is you currently. That's the only modification I've made in the PR (aside form shell.nix that nobody uses). Can you glance at this and confirm that it's okay? I've tested it thoroughly in my own fork with actual CI set up.

[Octelly]

@PastaLaPate should be all good, would wait for Actions to finish though
https://github.com/Octelly/Eglantine/actions/runs/42657053975