bro ion even no

util/profile-icons.nix

@@ -0,0 +1,33 @@
+{ lib, config, ...}:
+
+let
+  userOptions = with lib; {
+    options.icon = mkOption { type = types.nullOr types.path; default = null; };
+  };
+
+  mkGdmUserConf = icon: ''
+    [User]
+    Session=
+    XSession=
+    Icon=${icon}
+    SystemAccount=false
+  '';
+
+  userList = with lib; filter (entry: entry.icon != null) (mapAttrsToList (name: value: { inherit name; icon = value.icon; }) config.users.users);
+
+  mkBootCommand = entry: "echo -e '${mkGdmUserConf entry.icon}' > /var/lib/AccountsService/users/${entry.name}\n";
+
+  bootCommands = map mkBootCommand userList;
+in
+
+{
+  options = {
+    users.users = with lib; with types; mkOption {
+      type = attrsOf (submodule userOptions);
+    };
+  };
+
+  config = lib.mkIf config.services.xserver.displayManager.gdm.enable {
+    boot.postBootCommands = with lib; strings.concatStrings bootCommands;
+  };
+}