you can send/view messages even if your device is only capable of sending http requests - like any old browser or just curl

- retrieve message: https://avajoin.net/r/myRoom (note /r/ part)

(add ?p=myPassword&l=5 to send room password or limit messages if required)

- send message: https://avajoin.net/s/myRoom?m=lalala-123 (note /s/ part)

Plain HTTP is also supported - for really old/restricted devices