Add comma, remove syncthing service

nix/london/gsimmer.nix

@@ -1,7 +1,11 @@
-{ config, pkgs, callPackage, ... }:
+{ config, pkgs, callPackage, lib, ... }:
 
 {
   nixpkgs = {
+    config.allowUnfreePredicate = pkg: builtins.elem (lib.getName pkg) [
+      "parsec-bin"
+      "discord"
+    ];
     config.allowUnfree = true;
     overlays =
       let
@@ -12,17 +16,13 @@
         [
           (import (builtins.fetchTarball {
             url = "https://github.com/nix-community/emacs-overlay/archive/master.tar.gz";
-            sha256 = "13h6m5dq1kvy6qv0qqil5l3hyv1pwz7g1mxz3h74a75bi47iasbi";
+            sha256 = "0h5jabl78dpgknf5p3q5wmwx1856ywjh3nxlbsrqk8fr1g3aix8n";
           })) discordOverlay];
   };
   home = {
     username = "gsimmer";
     homeDirectory = "/home/gsimmer";
   };
-
-  services.syncthing = {
-    enable = true;
-  };
   
   programs = {
     bash.enable = false;
@@ -564,6 +564,7 @@ $env.config = {
     rage
     discord
     mangohud
+    comma
   ];
 
   # This value determines the Home Manager release that your