{
  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
    helix.url = "github:helix-editor/helix";
    helix.inputs.nixpkgs.follows = "nixpkgs";
  };

  outputs =
    {
      self,
      nixpkgs,
      flake-utils,
      helix,
      ...
    }:
    flake-utils.lib.eachDefaultSystem (
      system:
      let
        pkgs = import nixpkgs {
          inherit system;
        };
      in
      rec {
        packages.syntax =
          let
            grammars = pkgs.callPackage "${helix}/grammars.nix" { };
          in
          pkgs.stdenv.mkDerivation {
            name = "syntax";
            nativeBuildInputs = [ pkgs.patchelf ];
            phases = [
              "buildPhase"
              "installPhase"
            ];
            buildPhase = ''
              mkdir -p build
              cp -r ${helix}/runtime/queries/* ./build/
              chmod u+w ./build -R
              for so in ${grammars}/*.so; do
                name=$(basename "$so" .so)
                if [ -d "./build/$name" ]; then
                  cp "$so" "./build/$name/$name.so"
                  chmod u+w "./build/$name/$name.so"
                  patchelf --shrink-rpath "./build/$name/$name.so"
                fi
              done
            '';
            installPhase = ''
              mkdir -p $out
              cp -r ./build/* $out/
            '';
          };
        packages.themes = pkgs.stdenv.mkDerivation {
          name = "themes";
          phases = [ "installPhase" ];
          installPhase = ''
            mkdir -p $out
            cp ${helix}/runtime/themes/*.toml $out/
          '';
        };
        packages.karnaugh = pkgs.rustPlatform.buildRustPackage (final: {
          pname = "karnaugh";
          version = "0.1.5";
          src = pkgs.lib.fileset.toSource {
            root = ./.;
            fileset = pkgs.lib.fileset.unions [
              ./Cargo.toml
              ./Cargo.lock
              ./src
            ];
          };
          cargoLock.lockFile = ./Cargo.lock;
        });
        packages.container = pkgs.dockerTools.buildImage {
          name = "karnaugh";
          tag = packages.karnaugh.version;

          copyToRoot = pkgs.buildEnv {
            name = "karnaugh-root";
            paths = [ packages.karnaugh ];
            pathsToLink = [ "/bin" ];
          };

          config = {
            Entrypoint = [
              "/bin/karnaugh"
              "--syntax-root"
              "${packages.syntax}"
              "--themes-root"
              "${packages.themes}"
            ];
          };
        };
        packages.default = packages.karnaugh;

        devShells.default = pkgs.mkShell {
          buildInputs = with pkgs; [
            cargo
            rustc
            rustfmt
            clippy
            cargo-edit
            cargo-audit
          ];
        };
      }
    );
}