feat: enable msyds

hosts/sydpc/configuration.nix

@@ -26,7 +26,7 @@
 
     steam = {
       enable = true;
-      impermanenceUsers = ["crumb"];
+      impermanenceUsers = ["crumb" "msyds"];
     };
 
     users.users = [

users/msyds/default.nix

@@ -21,6 +21,7 @@
 
     sydnix = {
       xdg.enable = true;
+      steam.enable = true;
       # Personal configurations.
       users.crumb = {
         bash.enable = true;
@@ -28,11 +29,15 @@
         git.enable = true;
         nvim.enable = true;
         readline.enable = true;
+        niri.enable = true;
+        firefox.enable = true;
+        ghostty.enable = true;
+        waybar.enable = true;
       };
       users.msyds = {
         emacs.enable = true;
         impermanence.enable = true;
-        syncthing.enable = false;
+        syncthing.enable = true;
         fonts.enable = true;
       };
     };