backwards: Add transmission module

hosts/backwards/modules/default.nix

@@ -14,6 +14,7 @@ in
       git.enable = true;
       syncthing.enable = true;
       restic.enable = true;
+      transmission.enable = true;
     };
   };
 }

hosts/backwards/modules/transmission/default.nix

@@ -0,0 +1,42 @@
+{ pkgs, lib, config, ... }:
+let
+  enabled = config.mod.transmission.enable;
+in
+{
+  options = {
+    mod.transmission = {
+      enable = lib.mkEnableOption "enable transmission module";
+    };
+  };
+
+  config = lib.mkIf enabled {
+    services = {
+      transmission = {
+        enable = true;
+        package = pkgs.transmission_4;
+
+        openFirewall = true;
+        openRPCPort = true;
+
+        user = "alex";
+        group = "users";
+
+        home = "/home/alex/media/ts-home";
+        downloadDirPermissions = "775";
+
+        settings = {
+          rpc-bind-address = "0.0.0.0";
+          rpc-port = 9191;
+
+          incomplete-dir-enabled = false;
+          download-dir = "/home/alex/media/downloads";
+
+          rpc-authentication-required = true;
+          rpc-whitelist-enabled = false;
+          rpc-username = "transmission";
+          rpc-password = "{55d884e4042db67313da49e05d7089a368eb64b3Br.3X.Xi";
+        };
+      };
+    };
+  };
+}