syncthing: add yncthing-resolve-conflicts script

modules/nixos/syncthing/default.nix

@@ -1,10 +1,17 @@
-{ config, lib, ... }:
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
 
 let
   cfg = config.services.syncthing;
   guiPort = 8384;
   transferPort = 22000;
   fqdn = "sync.local";
+  # TODO: look into https://github.com/dschrempf/syncthing-resolve-conflicts
+  syncthing-resolve-conflicts = pkgs.callPackage ./syncthing-resolve-conflicts.nix { };
 
   user = "sid";
   dirs = [
@@ -81,6 +88,10 @@ in
     };
   };
 
+  environment.systemPackages = [
+    syncthing-resolve-conflicts
+  ];
+
   sops.secrets."syncthing/gui-pw" = {
     owner = cfg.user;
     group = cfg.group;