Add QML syntax packages to emacs

modules/emacs/default.nix

@@ -1,6 +1,25 @@
 { inputs, config, pkgs, ... }: let
   newpkgs = pkgs.appendOverlays
-    (with inputs.emacs-overlay.overlays; [ emacs package ]);
+    (with inputs.emacs-overlay.overlays; [
+      emacs
+      package
+
+      (final: prev: {
+        tree-sitter = prev.tree-sitter.override {
+          extraGrammars = {
+            tree-sitter-qmljs = {
+              version = "master";
+              src = pkgs.fetchFromGitHub {
+                owner = "yuja";
+                repo = "tree-sitter-qmljs";
+                rev = "35ead5b9955cdb29bcf709d622fa960ff33992b6";
+                sha256 = "jT47lEGuk6YUjcHB0ZMyL3i5PqyUaCQmt0j78cUpy8Q=";
+              };
+            };
+          };
+        };
+      })
+    ]);
 
   tree-sitter-parsers = grammars: with grammars; [
     tree-sitter-bash
@@ -28,6 +47,7 @@
     tree-sitter-nix
     tree-sitter-prisma
     tree-sitter-python
+    tree-sitter-qmljs
     tree-sitter-regex
     tree-sitter-rust
     tree-sitter-scss
@@ -41,7 +61,18 @@
 
   custom-emacs =
     with newpkgs;
-    ((emacsPackagesFor (emacs29-pgtk.override { withNativeCompilation = true; })).emacsWithPackages (epkgs: with epkgs; [
+    ((emacsPackagesFor (emacs29-pgtk.override { withNativeCompilation = true; })).emacsWithPackages (epkgs: with epkgs; let
+      qml-ts-mode = trivialBuild {
+        pname = "qml-ts-mode";
+        version = "master";
+        src = fetchFromGitHub {
+          owner = "outfoxxed";
+          repo = "qml-ts-mode";
+          rev = "b24b9e78305ed045baa136782623ad16de01b7b8";
+          sha256 = "PgXm/a92cX5zjA9blTrIRH7DfOUczRwb9oBcMMEzF2I=";
+        };
+      };
+    in [
       avy
       better-jumper
       company
@@ -68,6 +99,7 @@
       nasm-mode
       nix-mode reformatter # required by nix mode
       projectile
+      qml-ts-mode
       rainbow-mode
       string-inflection
       (treesit-grammars.with-grammars (grammars: tree-sitter-parsers grammars))