chiptrack: init at 0.3.1

[OPNA2608]

Description of changes

https://github.com/jturcotte/chiptrack

The whole skia stuff is adapted from here:

nixpkgs/pkgs/by-name/ne/neovide/package.nix

Lines 40 to 62 in 88af533

	SKIA_SOURCE_DIR =
	let
	repo = fetchFromGitHub {
	owner = "rust-skia";
	repo = "skia";
	# see rust-skia:skia-bindings/Cargo.toml#package.metadata skia
	rev = "m124-0.72.3";
	hash = "sha256-zlHUJUXukE4CsXwwmVl3KHf9mnNPT8lC/ETEE15Gb4s=";
	};
	# The externals for skia are taken from skia/DEPS
	externals = linkFarm "skia-externals" (lib.mapAttrsToList
	(name: value: { inherit name; path = fetchgit value; })
	(lib.importJSON ./skia-externals.json));
	in
	runCommand "source" { } ''
	cp -R ${repo} $out
	chmod -R +w $out
	ln -s ${externals} $out/third_party/externals
	''
	;
	SKIA_GN_COMMAND = "${gn}/bin/gn";
	SKIA_NINJA_COMMAND = "${ninja}/bin/ninja";

…though I was able to get rid of alot of the externals by simply setting SKIA_USE_SYSTEM_LIBRARIES.

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/)
• 24.11 Release Notes (or backporting 23.11 and 24.05 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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