Tabby is a modern terminal that’s not only nicer than the current terminal addons, but nicer than the stock terminal installed on most gnu/linux distros.
The current terminal addons have weird right-click issues and are pretty basic. Tabby would be a great leap forward.
Best part: it’s already available in webapp form!
And this project already uses docker! So it should be relatively simple to create an addon from.
I might give it a shot myself, although I’m currently working on other addons. I’d love to see this done by the community one day (or by the HA team).