Check out the pull request I made on your repo.
I left some comments about how to start the Keysight Instrument Discovery Service, which Keysight VISA depends on before I/O will work, and how to test that the service is up (vifind).
I was able to get the TUI working with a Keysight scope over SCPI Sockets (port 5025) on my Intel Mac. I think your instrument supports the HiSLIP protocol (port 4880), which has a more robust protocol for instrument I/O, so its recommended (TCPIP::<instrument ip / hostname>::hislip0::INSTR). HiSLIP will work inside of the container as well, I’m fairly certain.
