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Requirements

Runtime​

  • Linux desktop session.
  • X11/Xorg for the only intended arrangement path. Actual movement is currently unverified.
  • A window manager that exposes the EWMH properties used by Grid Screen.

The X11 adapter uses EWMH window metadata and _NET_WORKAREA. It currently models the X server's root screen as one ScreenInfo; it does not implement multi-monitor XRandR output discovery.

Wayland​

Wayland is not an arrangement target. The Wayland adapter may list top-level windows through its foreign-toplevel helper, but reports those windows as not movable or resizable. The arrange operation therefore fails validation, and its adapter returns Window arrangement not supported on Wayland if called directly.

Use an X11 session only to exercise the intended arrangement path; see compatibility and diagnostics for its unverified movement limitation. Do not treat an XWayland application inside a Wayland session as supported X11 arrangement.