sp-config/sp-modules/simple-nixos-mailserver/flake.nix

{
  description = "PoC SP module for the simple-nixos-mailserver";

  inputs.mailserver.url = "gitlab:simple-nixos-mailserver/nixos-mailserver";

  outputs =
    { self, mailserver }:
    {
      nixosModules.default = _: {
        imports = [
          mailserver.nixosModules.default
          ./options.nix
          ./config.nix
        ];
      };
      configPathsNeeded = builtins.fromJSON (builtins.readFile ./config-paths-needed.json);
      meta =
        { lib, ... }:
        {
          spModuleSchemaVersion = 1;
          id = "simple-nixos-mailserver";
          name = "Mail Server";
          description = "E-Mail for company and family.";
          svgIcon = builtins.readFile ./icon.svg;
          isMovable = true;
          isRequired = true;
          canBeBackedUp = true;
          backupDescription = "Mail boxes and filters.";
          systemdServices = [
            "dovecot2.service"
            "postfix.service"
          ];
          user = "virtualMail";
          folders = [
            "/var/vmail"
            "/var/sieve"
          ];
          supportLevel = "normal";
        };

      # TODO generate json docs from module? something like:
      # nix eval --impure --expr 'let flake = builtins.getFlake (builtins.toPath ./.); pkgs = flake.inputs.mailserver.inputs.nixpkgs.legacyPackages.x86_64-linux; in (pkgs.nixosOptionsDoc { inherit (pkgs.lib.evalModules { modules = [ flake.nixosModules.default ]; }) options; }).optionsJSON'
      # (doesn't work because of `assertions`)
    };
}