remove_background/flake.nix

{
  description = "Remove background Rust project with X11/Wayland support";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    rust-overlay.url = "github:oxalica/rust-overlay";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs =
    {
      self,
      nixpkgs,
      rust-overlay,
      flake-utils,
    }:
    flake-utils.lib.eachDefaultSystem (
      system:
      let
        overlays = [ (import rust-overlay) ];
        pkgs = import nixpkgs { inherit system overlays; };
        stdenv = pkgs.stdenvAdapters.useMoldLinker pkgs.clangStdenv;
        rustToolchain = pkgs.rust-bin.stable.latest.default.override {
          extensions = [ "rust-src" ];
        };

        nativeBuildInputs = with pkgs; [
          rustToolchain
          mold
          pkg-config
          clang
        ];

        xorgBuildInputs = with pkgs; [
          xorg.libX11
          xorg.libXcursor
          xorg.libXi
          xorg.libXrandr
        ];

        waylandBuildInputs = with pkgs; [
          libxkbcommon
          wayland
        ];

        # Graphics/rendering libraries needed for wgpu (used by show-image)
        graphicsBuildInputs = with pkgs; [
          vulkan-loader
          openssl
        ];

        buildInputs = xorgBuildInputs ++ waylandBuildInputs ++ graphicsBuildInputs;

        mkShell = pkgs.mkShell.override {
          stdenv = stdenv;
        };
      in
      {
        packages.default = pkgs.rustPlatform.buildRustPackage {
          inherit stdenv buildInputs nativeBuildInputs;
          pname = (builtins.fromTOML (builtins.readFile ./Cargo.toml)).package.name;
          version = (builtins.fromTOML (builtins.readFile ./Cargo.toml)).package.version;
          src = ./.;
          cargoLock = {
            lockFile = ./Cargo.lock;
          };
        };

        devShells.default = mkShell {
          inherit buildInputs nativeBuildInputs;

          RUST_BACKTRACE = 1;
          shellHook = ''
            export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:${pkgs.lib.makeLibraryPath buildInputs}"
          '';
        };
      }
    );
}