{
  description = "Firmware for kirdy";

  inputs.nixpkgs.url = github:NixOS/nixpkgs/nixos-22.05;
  inputs.mozilla-overlay = { url = github:mozilla/nixpkgs-mozilla; flake = false; };

  outputs = { self, nixpkgs, mozilla-overlay }:
    let
      pkgs = import nixpkgs { system = "x86_64-linux"; overlays = [ (import mozilla-overlay) ]; };
      rustManifest = pkgs.fetchurl {
        url = "https://static.rust-lang.org/dist/2022-09-22/channel-rust-stable.toml";
        sha256 = "f257a7de2f284f025238964ca2c1865c704be4156e1909d6393d92b796005055";
      };

      targets = [
        "thumbv7em-none-eabihf"
      ];
      rustChannelOfTargets = _channel: _date: targets:
        (pkgs.lib.rustLib.fromManifestFile rustManifest {
          inherit (pkgs) stdenv lib fetchurl patchelf;
          }).rust.override {
          inherit targets;
          extensions = ["rust-src"];
        };
      rust = rustChannelOfTargets "stable" null targets;
      rustPlatform = pkgs.recurseIntoAttrs (pkgs.makeRustPlatform {
        rustc = rust;
        cargo = rust;
      });
      kirdy = rustPlatform.buildRustPackage rec {
        name = "kirdy";
        version = "0.0.0";

        src = self;
        cargoLock = { 
          lockFile = ./Cargo.lock;
        };

        nativeBuildInputs = [ pkgs.llvm ];

        buildPhase = ''
          cargo build --release --bin kirdy
        '';

        installPhase = ''
          mkdir -p $out $out/nix-support
          cp target/thumbv7em-none-eabihf/release/kirdy $out/kirdy.elf
          echo file binary-dist $out/kirdy.elf >> $out/nix-support/hydra-build-products
          llvm-objcopy -O binary target/thumbv7em-none-eabihf/release/kirdy $out/kirdy.bin
          echo file binary-dist $out/kirdy.bin >> $out/nix-support/hydra-build-products
        '';

        dontFixup = true;
      };
    in {
      packages.x86_64-linux = {
        inherit kirdy;
      };

      hydraJobs = {
        inherit kirdy;
      };

      devShell.x86_64-linux = pkgs.mkShell {
        name = "kirdy-dev-shell";
        buildInputs = with pkgs; [
          rustPlatform.rust.rustc
          rustPlatform.rust.cargo
          openocd dfu-util glibc picocom gdb 
          ] ++ (with python3Packages; [
            numpy matplotlib pyqtgraph
          ]);
          shellHook=
          ''
            export QT_PLUGIN_PATH=${pkgs.qt5.qtbase}/${pkgs.qt5.qtbase.dev.qtPluginPrefix}
            export QML2_IMPORT_PATH=${pkgs.qt5.qtbase}/${pkgs.qt5.qtbase.dev.qtQmlPrefix}
          '';
      };
      defaultPackage.x86_64-linux = kirdy;
    };
}