starc-flake/flake.nix

{
  description = "An advanced text editor for script writers working professionally in film, novel, theatre, radio or writing for comic books.";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
  };

  outputs = {
    self,
    nixpkgs,
  }: let
    system = "x86_64-linux";
    pkgs = nixpkgs.legacyPackages.${system};

    name = "starc";
    version = "0.6.4";

    src = pkgs.fetchurl {
      url = "https://github.com/story-apps/starc/releases/download/v${version}/starc-setup.AppImage";
      sha256 = "sha256-KLawvuLyqd7aPidH3ghr7mLl9NFQ7nduhnxAq0RpToQ=";
    };
  in {
    packages.${system} = {
      default = pkgs.appimageTools.wrapType2 {
        inherit name src;

        extraInstallCommands = let
          contents = pkgs.appimageTools.extract {
            inherit name src;
          };
        in ''
          # Install .desktop file
          install -m 444 ${contents}/${name}.desktop -Dt $out/share/applications

          # Install icons
          for file in $(find ${contents}/share/icons -type f); do
            directory=$(dirname ''${file#${contents}})
            install -m 444 $file -D $out/$directory/${name}.png
          done
        '';
      };
    };

    apps.${system} = {
      dev = {
        program = "${pkgs.writeShellScript "download-appimage" ''
          ${pkgs.curl}/bin/curl ${src.url} -C - -Lo ${name}.AppImage
        ''}";
        type = "app";
      };
    };

    overlays = {
      default = final: prev: {
        starc = self.packages.${system}.default;
      };
    };

    devShells.${system} = {
      default = pkgs.mkShellNoCC {
        packages = with pkgs; [
          appimage-run
          file
        ];

        shellHook = ''
          ${self.apps.${system}.dev.program}
        '';
      };
    };
  };
}