{
  description = "A Church Presentation Application";

  inputs = {
    # cargo2nix.url = "github:cargo2nix/cargo2nix/release-0.11.0";
    nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
    naersk.url = "github:nix-community/naersk";
    flake-utils.url = "github:numtide/flake-utils";
    fenix.url = "github:nix-community/fenix";
    # nixpkgs.follows = "cargo2nix/nixpkgs";
  };

  outputs = inputs:
    with inputs;
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs {
          inherit system;
          overlays = [ fenix.overlays.default ];
          # overlays = [cargo2nix.overlays.default];
        };
        naersk' = pkgs.callPackage naersk { };

        nbi = with pkgs; [
          # ffmpeg
          alejandra
          (pkgs.fenix.stable.withComponents [
            "cargo"
            "clippy"
            "rust-src"
            "rustc"
            "rustfmt"
          ])
          rust-analyzer
        ];

        bi = with pkgs; [
          gcc
          stdenv
          gnumake
          gdb
          qtcreator
          cmake
          kdePackages.extra-cmake-modules
          pkg-config
          qt6.wrapQtAppsHook
          makeWrapper

          openssl.dev
          openssl.out

          clang-tools
          clang
          libclang
          # libwebp
          # clang-format
          qt6.full
          qt6.qttools
          qt6.qtbase
          # qt6.qtquickcontrols2
          # qt6.qtx11extras
          qt6.qtmultimedia
          qt6.qtwayland
          qt6.qtwebengine
          qt6.qtimageformats
          kdePackages.kirigami
          # kdePackages.kfilemetadata
          # libsForQt5.breeze-icons
          # libsForQt5.breeze-qt5
          kdePackages.qqc2-desktop-style
          # libsForQt5.kirigami-addons
          # libsForQt5.ki18n
          # libsForQt5.kcoreaddons
          # libsForQt5.kguiaddons
          # libsForQt5.kconfig

          # podofo
          mpv
          kdePackages.mpvqt
          ffmpeg-full
          # yt-dlp

          # Rust tools
          just
          clippy
          rustc
          cargo
          rustfmt
          rust-analyzer
          sqlx-cli
          cargo-watch
          corrosion
        ];

      in rec {
        # packages = {
        #   crate = (rustPkgs.workspace.libre-presenter {  }).bin;
        #   default = packages.crate;
        # };
        devShell = pkgs.mkShell {
          nativeBuildInputs = nbi;
          buildInputs = bi;

          RUST_BACKTRACE = "1";
          LIBCLANG_PATH = "${pkgs.llvmPackages.libclang.lib}/lib";
          CMAKE_C_COMPILER = "${pkgs.gcc}/bin/gcc";
          CMAKE_CXX_COMPILER = "${pkgs.gcc}/bin/g++";
          CARGO_PROFILE_RELEASE_BUILD_OVERRIDE_DEBUG = true;
          # KDE_INCLUDEDIR = "${pkgs.kdePackages.kirigami.dev}/include";
          # KDE_QMLDIR = "${pkgs.kdePackages.kirigami.dev}/lib/qt-6/qml/org/kde/kirigami/";

          # This creates the proper qt env so that plugins are found right.
          shellHook = ''
            setQtEnvironment=$(mktemp --suffix .setQtEnvironment.sh)
            echo "shellHook: setQtEnvironment = $setQtEnvironment"
            makeQtWrapper "/bin/sh" "$setQtEnvironment" "''${qtWrapperArgs[@]}"
            sed "/^exec/d" -i "$setQtEnvironment"
            source "$setQtEnvironment"
          '';
          DATABASE_URL =
            "sqlite:///home/chris/.local/share/lumina/library-db.sqlite3";
        };
        # devShell = import ./shell.nix { inherit pkgs; };
        # defaultPackage = pkgs.libsForQt5.callPackage ./default.nix { };
      });
}