GHOST/Wayland support has been committed to master, this task is an overview of the remaining TODO's.
Note that these could be expanded into their own tasks, listing here for now.
[ ] Tablet support (pressure sensitivity, angle).
[X] Detectable key repeat events (`GHOST_TEventKeyData.is_repeat`).
[X] Support dialog windows (so they're always in-front `GHOST_CreateDialogWindow`, respecting parent windows).
[ ] Support for DPI detection (`GHOST_GetDPIHint`)