opendeck: init at 2.2.1

[pluiedev]

This PR will remain as a DRAFT until the necessary Deno infrastructure has been merged, which would be separated out into another PR.

Until then, this PR is still buildable and testable, though please only review the changes pertaining to OpenDeck itself in this PR — any suggestions towards the Deno infrastructure should be directed to its own PR.

Note: If you are using a NVIDIA GPU on Linux, you should know that OpenDeck, like all Tauri applications, suffers from a WebkitGTK bug that either makes the window entirely black or makes the app crash entirely. This is an upstream bug. Setting WEBKIT_DISABLE_DMABUF_RENDERER=1 might resolve the issue, but your mileage will vary.

Open questions:

• Should we also package OpenDeck's plugins? Upstream provides a very handy catalogue we can use to generate our own plugins inside Nixpkgs, which, in theory, can be installed directly.

Closes #356016

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandboxing enabled in nix.conf? (See Nix manual)
  • sandbox = relaxed
  • sandbox = true
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 25.05 Release Notes (or backporting 24.11 and 25.05 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
• Fits CONTRIBUTING.md.

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[Suzu-lab]

Hi. I am interested in using Opendeck, and it is my understanding that the Deno framework has already been merged into main (according to what I saw in https://github.com/NixOS/nixpkgs/blob/nixos-unstable/pkgs/by-name/de/deno/package.nix and https://search.nixos.org/packages?channel=unstable&show=deno&type=packages&query=deno, but feel free to correct me if I'm wrong).
Is it possible for this package to come out of draft now? Thanks.

[pluiedev]

While Deno itself has already been in Nixpkgs for a while, the problem is that we do not have a reliable way to pre-download dependencies in the format that Deno expects. During the build process we don't have internet access so this needs to be done beforehand in a way that is stable.

Unfortunately Deno's native caching abilities are very brittle and shouldn't be relied upon and we still need a better alternative, which is why this PR still cannot be merged at this moment. See #417591, #407434 (comment).

[Suzu-lab]

Oh, I see. It seems here that the build support helper merge was reverted and everything, so I guess that would make it impossible for me to just try and use this PR as-is.
Thanks for the explanation.
It's a shame. The other option available in nixpkgs (StreamController) is not compatible with my device, while Opendeck has support for user-written plugins to add new devices.

[aMOPel]

Unfortunately Deno's native caching abilities are very brittle and shouldn't be relied upon and we still need a better alternative, which is why this PR still cannot be merged at this moment. See #417591, #407434 (comment).

I made a separate repo for the buildDenoPackage now, since I don't expect the new PR to ever get merged into nixpkgs due to nobody reviewing my code.

https://github.com/aMOPel/deno2nix