compile_schemas() {
    glib-compile-schemas /usr/share/glib-2.0/schemas/
}

instructions() {
    echo "Don't forget to restart GNOME Shell ([Alt]+[F2], r) and to enable extension with gnome-tweak-tool."
}

post_install() {
    compile_schemas
    instructions
}

post_upgrade() {
    compile_schemas
    instructions
}

post_remove() {
    compile_schemas
}