And then the official docs: https://opencode.ai/docs/troubleshooting/#linux-wayland--x11...

> Linux: Wayland / X11 issues

> On Linux, some Wayland setups can cause blank windows or compositor errors.

> If you’re on Wayland and the app is blank/crashing, try launching with OC_ALLOW_WAYLAND=1.

> If that makes things worse, remove it and try launching under an X11 session instead.

OC_ALLOW_WAYLAND=1 didn't work for me (Ubuntu 24.04)

Suggesting to use a different display server to use a TUI (!!) seems a bit wild to me. I didn't put a lot of time into investigating this so maybe there is another reason than Wayland. Anyway I'm using Pi now