Gregory's Server@techlore #CustomRom are coming under more and more pressure, either because they don't like the Aurora store or because they tie apps to google playstore so they won't work without it.
The AppLonge Store from System #eOS still works.
You can then use the apps #SAI or #AppManager (fdroid) to generate the apk or apks and install or update them on other devices.
The AppLonge apk is not usable without eOS.
@nikita @techlore Thanks for the Information about alternative ways.