Windows build 2/2?

run-windows.bat

@@ -0,0 +1,17 @@
+@echo off
+setlocal
+
+REM Launch a locally built maturita.exe with the GTK4 runtime on PATH, so the
+REM app can be started by double-clicking even when GTK is not installed
+REM system-wide.
+
+if not defined GTK_ROOT set "GTK_ROOT=C:\gtk"
+set "PATH=%GTK_ROOT%\bin;%PATH%"
+
+if not exist "%~dp0maturita.exe" (
+    echo [error] maturita.exe not found next to this script.
+    echo         Build it first with build-windows.bat.
+    exit /b 1
+)
+
+start "" /D "%~dp0" "%~dp0maturita.exe"