By default, sharing a sudo password between PTY sessions is not allowed by your operating system. This can be a frustration when using Waveterm because every command is treated as a separate PTY session. To get around this, Waveterm will cache your sudo password in local memory (not written to disk) and share it with a session when provided.
Holy crap, no thanks. That's legit awful.
Looks like Kubuntu in the high res image