add a github action to test the nix flake works and doesn't break

[jessfraz]

I think your nix flake is broken and this will:

1. Prove it
2. Ensure it doesn't break again
3. Fix it

Relevant issue: #241

[github-actions]

All contributors have signed the CLA ✍️ ✅
_{Posted by the CLA Assistant Lite bot.}

[jessfraz]

I have read the CLA Document and I hereby sign the CLA

[jessfraz]

I will also fix the flake... since it's broken.

[jessfraz]

Cool it works now.

[jessfraz]

if this breaks again once you have the github action, o3 is great at unfucking these things, but also you can ping me

[shekhirin]

Interested in this as well, gentle ping for review @tibo-openai 🙏

[limakzi]

I'm afraid this cannot be managed by dependabot or any automated system.

[jessfraz]

Yeah its super unfortunate, and according to our mutual friend, o3, this seems like the lesser of evils...

I presume you all plan on getting your changes merged to ratatui upstream, that would definitely clean it up. But I'm also happy to help, this flake is a part of my dotfiles now, so you all can ping me whenever the action breaks, honestly I'd much prefer being pinged than the flake not work :)

[shazow]

(Pls excuse the drive-by commenting)

If you do want to maintain this long term, you can write a small script that does something to the effect of nix-prefetch-url --unpack --type sha256 $URL and writes it into something like foo.nix then do import ./foo.nix there. Give or take some datastructure adjustments.

[jessfraz]

ya that seems like a lot of extra work for something where there hasnt been changes in 3 weeks: https://github.com/nornagon/ratatui/tree/nornagon-v0.29.0-patch I'd like to better understand the plans to upstream