Here's another attempt for bridging without using RaspAP, configuring this takes less time then ionstalling RaspAP on old Raspberry.
https://www.elektronik-kompendium.de/si ... 002161.htm
It's written in german, but straight forward. So I think nothing more to explain.
What I changed in hostapd.conf:
- added driver according used Wifi usb adapter (in my case "driver=nl80211")
- changed SSID + PW
Additionally I changed the Dietpi-Services (available via dietpi-launcher) to let the system controll the hostapd service.
Beware of, that the DHCP-Router will assign the IP to the new bridge. So after first restart, your Dietpi is available on other IP.
Advantage compared to other methods:
- no useless stuff coming with RaspAP and after some hard poweroffs the system wasn't available anymore (I know I shouldn't do this)
- no dhcp server coming with Dietpi-Hotspot
Hope this helps others, who want to bridfge Wifi <-> ethernet on raspberry / Dietpi.