diff --git a/app/build_grantlee_qt6.sh b/app/build_grantlee_qt6.sh
deleted file mode 100755
index 7db44749c..000000000
--- a/app/build_grantlee_qt6.sh
+++ /dev/null
@@ -1,109 +0,0 @@
-#!/usr/bin/env bash
-set -euo pipefail
-
-# build_grantlee_qt6.sh - build grantlee with pragmatic Qt6 patches and install to INSTALL_PREFIX
-QT_ROOT=${QT_ROOT:-/opt/Qt/6.8.3/gcc_64}
-INSTALL_PREFIX=${INSTALL_PREFIX:-/usr/local}
-
-echo "Building Grantlee (attempt Qt6 port) into ${INSTALL_PREFIX} using QT_ROOT=${QT_ROOT}"
-TMPDIR=$(mktemp -d)
-trap 'rm -rf "$TMPDIR"' EXIT
-cd "$TMPDIR"
-
-if ! git clone --depth 1 https://github.com/steveire/grantlee.git grantlee; then
-  echo "Failed to clone grantlee" >&2
-  exit 1
-fi
-
-# Ensure dev packages required for building (xkb headers etc.)
-if command -v sudo >/dev/null 2>&1; then
-  sudo apt-get update -y || true
-  sudo apt-get install -y --no-install-recommends libxkbcommon-dev libxkbcommon-x11-dev pkg-config || true
-fi
-
-pushd grantlee >/dev/null
-# Backup relevant files
-git ls-files | grep -E "CMakeLists.txt|\\.cmake$" | xargs -r -n1 -I{} cp {} {}.bak || true
-
-# Python-based safe patches
-python3 - <<'PY'
-import re
-from pathlib import Path
-# first, convert find_package(Qt5 COMPONENTS ...) preserving components
-pat_fp = re.compile(r'find_package\s*\(\s*Qt5\s+COMPONENTS\s+([^\)]+)\)', re.M)
-# map find_package(Qt5 Test) forms to Qt6 Test
-pat_test_simple = re.compile(r'find_package\s*\(\s*Qt5\s+Test(?:\s+REQUIRED)?\s*\)', re.M)
-for p in Path('.').rglob('*'):
-    if p.is_file() and (p.name=='CMakeLists.txt' or p.suffix=='.cmake'):
-        try:
-            s = p.read_text()
-            s2 = pat_fp.sub(lambda m: 'find_package(Qt6 REQUIRED COMPONENTS %s)'%m.group(1).strip(), s)
-            s2 = pat_test_simple.sub('find_package(Qt6 Test REQUIRED)', s2)
-            if s2 != s:
-                p.write_text(s2)
-                print('Patched find_package components in', p)
-        except Exception as e:
-            print('Skipping', p, 'error', e)
-
-# generic replacements
-patterns = [
-  (re.compile(r'find_package\s*\(\s*Qt5[^)]*\)', re.M), 'find_package(Qt6 REQUIRED COMPONENTS Core Widgets)'),
-  (re.compile(r'Qt5::'), 'Qt6::'),
-  (re.compile(r'QT5_WRAP_CPP'), 'QT_WRAP_CPP'),
-  (re.compile(r'qt5_add_resources'), 'qt_add_resources'),
-  (re.compile(r'qt5_add_translations'), 'qt_add_translations'),
-  (re.compile(r'qt5_add_translation'), 'qt_add_translation'),
-]
-for p in Path('.').rglob('*'):
-    if p.is_file() and (p.name=='CMakeLists.txt' or p.suffix=='.cmake'):
-        try:
-            s = p.read_text()
-            orig = s
-            for pat, repl in patterns:
-                s = pat.sub(repl, s)
-            if s != orig:
-                p.write_text(s)
-                print('Patched', p)
-        except Exception as e:
-            print('Skipping', p, 'error', e)
-
-# remove explicit QT_TESTCASE_BUILDDIR compile definitions to avoid duplicate -D on command line
-pat_qt_test_def = re.compile(r"^\s*target_compile_definitions\([^\n]*QT_TESTCASE_BUILDDIR[^\n]*\)\s*$", re.M)
-for p in Path('.').rglob('*'):
-    if p.is_file() and p.name=='CMakeLists.txt':
-        try:
-            s = p.read_text()
-            s2 = pat_qt_test_def.sub(lambda m: '# PATCHED: removed QT_TESTCASE_BUILDDIR definition to avoid macro redefinition', s)
-            if s2 != s:
-                p.write_text(s2)
-                print('Removed QT_TESTCASE_BUILDDIR in', p)
-        except Exception as e:
-            print('Skipping', p, 'error', e)
-
-# ensure files linking to Qt6::Test have a find_package(Qt6 Test REQUIRED)
-for p in Path('.').rglob('*'):
-    if p.is_file() and (p.name=='CMakeLists.txt' or p.suffix=='.cmake'):
-        try:
-            s = p.read_text()
-            if 'Qt6::Test' in s and 'find_package(Qt6 Test' not in s:
-                s = 'find_package(Qt6 COMPONENTS Test REQUIRED)\n' + s
-                p.write_text(s)
-                print('Inserted find_package(Qt6 Test REQUIRED) in', p)
-        except Exception as e:
-            print('Skipping', p, 'error', e)
-PY
-
-popd >/dev/null
-
-mkdir -p grantlee/build
-cd grantlee/build
-cmake -DCMAKE_BUILD_TYPE=Release \
-      -DCMAKE_INSTALL_PREFIX="${INSTALL_PREFIX}" \
-      -DCMAKE_PREFIX_PATH="${QT_ROOT}:${INSTALL_PREFIX}" \
-      ${DISABLE_TESTS:+-DBUILD_TESTING=OFF} ..
-
-cmake --build . -- -j$(nproc) || true
-cmake --install . || true
-
-echo "Grantlee attempted build finished"
-exit 0