aoc2024/flake.nix

{
  description = "Description for the project";

  inputs = {
    flake-parts.url = "github:hercules-ci/flake-parts";
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    rust-overlay.url = "github:oxalica/rust-overlay";
    treefmt.url = "github:numtide/treefmt-nix";
  };

  outputs =
    inputs@{ flake-parts, ... }:
    flake-parts.lib.mkFlake { inherit inputs; } {
      imports = [ inputs.treefmt.flakeModule ];
      systems = [
        "x86_64-linux"
        "aarch64-linux"
        "aarch64-darwin"
        "x86_64-darwin"
      ];
      perSystem =
        {
          config,
          self',
          inputs',
          pkgs,
          system,
          ...
        }:
        let
          runtimeDeps = with pkgs; [
            alsa-lib
            speechd
          ];
          buildDeps = with pkgs; [
            pkg-config
            rustPlatform.bindgenHook
          ];
          devDeps = with pkgs; [ gdb ];

          cargoToml = builtins.fromTOML (builtins.readFile ./Cargo.toml);

          rustPackage =
            features:
            (pkgs.makeRustPlatform {
              cargo = pkgs.rust-bin.stable.latest.minimal;
              rustc = pkgs.rust-bin.stable.latest.minimal;
            }).buildRustPackage
              {
                inherit (cargoToml.package) name version;
                src = ./.;
                cargoLock.lockFile = ./Cargo.lock;
                buildFeatures = features;
                buildInputs = runtimeDeps;
                nativeBuildInputs = buildDeps;
                # Uncomment if your cargo tests require networking or otherwise
                # don't play nicely with the Nix build sandbox:
                # doCheck = false;
              };

        in
        {
          _module.args.pkgs = import inputs.nixpkgs {
            inherit system;
            overlays = [ (import inputs.rust-overlay) ];
          };

          packages.default = (rustPackage "");
          devShells.default = pkgs.mkShell {
            shellHook = ''
              export RUST_SRC_PATH=${pkgs.rustPlatform.rustLibSrc}
              export RUST_LOG=info
            '';
            buildInputs = runtimeDeps;
            nativeBuildInputs =
              buildDeps ++ devDeps ++ [ (pkgs.rust-bin.selectLatestNightlyWith (toolchain: toolchain.default)) ];
          };

          treefmt = {
            projectRootFile = "./flake.nix";
            programs = {
              nixfmt.enable = true;
              rustfmt.enable = true;
            };
          };
        };
      flake = {
        # The usual flake attributes can be defined here, including system-
        # agnostic ones like nixosModule and system-enumerating ones, although
        # those are more easily expressed in perSystem.

      };
    };
}