General steps for using RTMP:
Switch to RTMP mode in Loola
Set RTMP URL+Key and encoder settings in the streaming software
Start streaming from the streaming software - preview will be shown in Loola
Click Go Live in Loola to actually start the broadcast
Select the RTMP mode in the Loola studio:
Copy the RTMP URL and RTMP Key from Loola to Wirecast:
Output --> Output Settings
You may want to create a new encoding preset:
Notes:
It's recommended to use Strict Constant Bitrate.
See platform-specific encoder settings here:
https://support.loola.tv/en/articles/3284585-rtmp-encoder-settings