{
  inputs = {
    nixpkgs.url = "https://channels.nixos.org/nixpkgs-unstable/nixexprs.tar.zst";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = { self, nixpkgs, flake-utils }:
    flake-utils.lib.eachDefaultSystem (system: let
      pkgs = nixpkgs.legacyPackages.${system};
      pico1541 = pkgs.callPackage (import ./nix/pico1541.nix) {};
    in {
      packages.pico1541 = pico1541;
      packages.default = pico1541;

      devShells.default = pico1541.overrideAttrs (o: {
        nativeBuildInputs = o.nativeBuildInputs
          ++ (with pkgs; [ clang-tools openocd ]);
      });
    });
}