There is an issue on their github about flickering they don't seem to care much about. I think most AI CLIs are using the same reactish cli thing called ink and all are having the same problems. opencode moved to a different library (opentui?) and their client seems to be doing much better. ALthough I must say I like to run the opencode cli locally with the web option and connect to it with a web browser. It's very nice. Plus you can code in bed :)