Yes i got it up and running. I've never had any problems with it since then.
I used an RTL2832U adapter and the following settings did the trick for me:
Repository: hertzg/rtl_433:latest-debian
Post Arguments: -c /dev/null -f 868.3M -Fmqtt://ip:port,user=mqttuser,pass=mqttpass,devices=rtl_433[/model][/id] -C si -M newmodel
Privileged: ON
RTL2832U adapter: https://de.aliexpress.com/item/32908968220.html?spm=a2g0o.order_list.order_list_main.105.21f35c5f5gXDEl