Updating UE5 to work on Wayland. I got it working, sort of, mostly. Swapchain issues.

The upcoming sdl 3.4.0 has some things that may be useful here. For starters, the notifications can be changed from being separate windows attached to the main editor window to being passed to the system for the os to handle instead. They’ve finally added support for system notifications through the system tray → SDL3/CategoryTray - SDL Wiki . And notification windows through https://wiki.libsdl.org/SDL3/CategoryMessagebox. There’s no need to craft custom modal windows for this anymore.

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