Implemented KaraKeep service as NixOS container

modules/services/karakeep.nix

@@ -0,0 +1,94 @@
+{
+  lib,
+  config,
+  ...
+}:
+let
+  cfg = config.my.services.karakeep;
+in
+{
+
+  options.my.services.karakeep = {
+    enable = lib.mkEnableOption "Karakeep (services.karakeep)";
+
+    port = lib.mkOption {
+      type = lib.types.port;
+      default = 3000;
+      description = ''
+        HTTP port for the web service. Used for Caddy reverse_proxy and
+        services.karakeep.extraEnvironment.PORT unless overridden there.
+      '';
+    };
+
+    environmentFile = lib.mkOption {
+      type = lib.types.nullOr lib.types.path;
+      default = null;
+      description = ''
+        Optional environment file merged into Karakeep systemd units (e.g. agenix).
+      '';
+    };
+
+    extraEnvironment = lib.mkOption {
+      type = lib.types.attrsOf lib.types.str;
+      default = { };
+      description = ''
+        Merged into services.karakeep.extraEnvironment. PORT defaults to
+        my.services.karakeep.port but can be overridden here.
+      '';
+    };
+
+    proxy = {
+      enable = lib.mkEnableOption "Set the Caddy reverse proxy entry for this service";
+
+      domain = lib.mkOption {
+        default = "example.com";
+        type = lib.types.str;
+        description = ''
+          The domain where Caddy is reachable
+        '';
+      };
+
+      subdomain = lib.mkOption {
+        default = "keep";
+        type = lib.types.str;
+        description = ''
+          Subdomain for Karakeep
+        '';
+      };
+
+      host = lib.mkOption {
+        default = "localhost";
+        type = lib.types.str;
+        description = ''
+          Hostname where Karakeep is listening
+        '';
+      };
+
+    };
+  };
+
+  config = lib.mkMerge [
+    (lib.mkIf cfg.enable {
+      services.karakeep = {
+        enable = true;
+        browser.enable = true;
+        meilisearch.enable = true;
+        environmentFile = cfg.environmentFile;
+        extraEnvironment = {
+          PORT = toString cfg.port;
+          DISABLE_NEW_RELEASE_CHECK = "true";
+        }
+        // cfg.extraEnvironment;
+      };
+    })
+
+    (lib.mkIf cfg.proxy.enable {
+      services.caddy = with cfg.proxy; {
+        virtualHosts."${subdomain}.${domain}".extraConfig = ''
+          reverse_proxy http://${host}:${toString cfg.port}
+          import cloudflare_${domain}
+        '';
+      };
+    })
+  ];
+}