post_install() {
    cat <<'EOF'
Configure QtEngine in ~/.config/qtengine/config.json.
An example is available at /etc/qtengine/config.example.json;
adjust its color scheme, icon theme, style, and fonts to installed choices.
Set QT_QPA_PLATFORMTHEME=qtengine in your desktop session to enable it.
Install both Qt 5 and Qt 6 variants of your chosen application style.
EOF
}
