brainstem: init at 2.10.5

[flokli]

This provides a library and CLI tools to control Acroname USB Smart switches, as well as a firmware updater.

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/)
• 24.05 Release Notes (or backporting 23.05 and 23.11 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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[SomeoneSerge]

Irrelevant nits:

I'd use nixfmt-rfc-style (because why not) and I'd generally write "''${!outputDev}" (Bin, Doc, Lib) instead of $dev (etc) so the phases are agnostic of outputs. Obviously it doesn't matter in this PR, but I think it's a reasonable default

[flokli]

From the irrelevant nits section:

I'd use nixfmt-rfc-style (because why not)

I have nixpkgs-fmt in my editor currently still. If there's a tree-wide policy in place, it'll probably be reformatted anyways.

and I'd generally write "''${!outputDev}" (Bin, Doc, Lib) instead of $dev (etc) so the phases are agnostic of outputs. Obviously it doesn't matter in this PR, but I think it's a reasonable default

There's 58 files in nixpkgs containing outputDev, and 182 containing $dev/include alone. I personally prefer to stick with the other style.