Mqtt config chat21-widget

When i install from soure code how should i configure mqtt part in chat21-widget & chat21-ionic & tiledesk-server
截屏2022-06-29 上午9.13.12

and how about the part of server? Should I build the mqtt service separately? what should I do?

Yes the MQTT chat servers are separate repos:

But I suggest you install Tiledesk using Docker Compose. Guide here: tiledesk-deployment/ at master · Tiledesk/tiledesk-deployment · GitHub