Syncthing, HM and Nixos Module

nixosModules/services/syncthing/service.nix

@@ -0,0 +1,64 @@
+{ config, lib, ... }:
+
+{
+  options.syncthing = {
+    enable = lib.mkEnableOption "Enables Syncthing service";
+
+    devices = lib.mkOption {
+      type = lib.types.attrsOf (lib.types.submodule {
+        options = {
+          id = lib.mkOption {
+            type = lib.types.str;
+            description = "Device ID";
+          };
+          addresses = lib.mkOption {
+            type = lib.types.listOf lib.types.str;
+            default = [ "dynamic" ];
+            description = "List of device addresses";
+          };
+        };
+      });
+      default = {};
+      description = "Syncthing devices";
+    };
+
+    folders = lib.mkOption {
+      type = lib.types.attrsOf (lib.types.submodule {
+        options = {
+          path = lib.mkOption {
+            type = lib.types.path;
+            description = "Path to folder";
+          };
+          devices = lib.mkOption {
+            type = lib.types.listOf lib.types.str;
+            default = [];
+            description = "List of device names to share with";
+          };
+        };
+      });
+      default = {};
+      description = "Syncthing folders";
+    };
+  };
+
+  config = lib.mkIf config.syncthing.enable {
+    services.syncthing = {
+      enable = true;
+      openDefaultPorts = true;
+      overrideDevices = true;
+      overrideFolders = true;
+
+      settings = {
+        devices = lib.mapAttrs (name: device: {
+          id = device.id;
+          addresses = device.addresses;
+        }) config.syncthing.devices;
+
+        folders = lib.mapAttrs (name: folder: {
+          path = folder.path;
+          devices = folder.devices;
+        }) config.syncthing.folders;
+      };
+    };
+  };
+}