Back in 2018, putting SDL's Wayland backend into shape was part of my first project done for @purism. Before that you couldn't really use it without expecting it to crash; it was outdated and lacked support for basic stuff like high DPI screens. Got it to work well enough for basic use-cases back then (even fixing some compositor bugs in the process), but it was still pretty bare bones with tons of features missing and the rest held by duct tape.
But at least one could already play stuff like Animatch or Neverball at full res on the phone with no glaring issues.
Today, while still not ready to become the default (almost!), SDL got bunch of those missing parts filled in - mostly by Ethan Lee. I've managed to find and fix some bugs this time as well. So, grab SDL 2.0.16, test and enjoy its refreshed Wayland backend while it's hot!
More info on the Wayland backend state (by Ethan): https://icculus.org/finger/flibitijibibo
Do you Know why the game Animatch does not have sound on Librem5?
@carlosgonz Because I still haven't finished producing music that we have prepared for it :P