kthxbyte/poorwm ? reverse-engineered prompt

Build me a tiny X11 window manager that makes every app run fullscreen with no borders, no dragging, no maximize or minimize buttons, and no visual clutter at all.

It should let me switch between windows with Alt Tab, and otherwise keep things as simple and stripped down as possible. If a new window does not immediately go fullscreen, that bug is acceptable for now as long as switching to it with Alt Tab makes it behave correctly.

Keep the codebase small and straightforward, since this is meant to be a minimal hostile window manager rather than a feature rich desktop environment. If you need to check current X11 behavior or docs online while implementing, go ahead.