flake.nix

{
  description = "gameboy emulator";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
    naersk.url = "github:nmattia/naersk";
    naersk.inputs.nixpkgs.follows = "nixpkgs";
    flake-utils.url = "github:numtide/flake-utils";
    flake-compat = {
      url = "github:edolstra/flake-compat";
      flake = false;
    };
  };

  outputs =
    {
      self,
      nixpkgs,
      naersk,
      flake-utils,
      ...
    }:
    flake-utils.lib.eachDefaultSystem (
      system:
      let
        pkgs = (import nixpkgs) {
          inherit system;
        };
        naersk' = pkgs.callPackage naersk { };
      in
      rec {
        defaultPackage = naersk'.buildPackage {
          src = ./.;
          override = p: {
            buildInputs =
              with pkgs;
              p.buildInputs
              ++ [
                SDL2
                pkg-config
              ]
              ++ lib.optionals stdenv.isDarwin [
                darwin.apple_sdk.frameworks.Security
              ];
          };
        };

        devShell = pkgs.mkShell {
          nativeBuildInputs =
            with pkgs;
            [
              rustc
              rustfmt
              rust-analyzer
              cargo
            ]
            ++ defaultPackage.buildInputs;

          RUST_SRC_PATH = "${pkgs.rust.packages.stable.rustPlatform.rustLibSrc}";
        };
      }
    );
}