Title says is essentially. How to configure the hotspot at startup to avoid any manual interaction.
If you turn it on, it automatically sets itself to autostart on next boot, if you turn it off, it removes itself from autostart. See the script here: https://github.com/BlokasLabs/pisound/blob/master/scripts/pisound-btn/toggle_wifi_hotspot.sh
If it does not behave that way, then it’s a bug, let us know what steps are you using.