So I just happened to have some spare time so I tried logging into my Ubuntu 22.04 by connecting Sigmarion 3 to my laptop via an USB cable.
It works, but the catch is: my Sigmarion 3's enter key somehow broke
(before this
) so I can only get the shell to display.
I used 24term for Sigmarion 3 for this.
Thank you to: ympbyc
https://ympbyc.hatenablog.com/entry/2021/09/22/Sigmarion_3%E3%82%92R...
The application of this is getting shell to work via USB cable to a Raspberry Pi Zero or other Raspberry Pi and connect it to the internet via lynx. The blog by ympbyc says that lynx etc. works.
-stingraze