I have complete instructions for compiling my demo now...
...but I had no idea I wouldn't be able to edit my post after "3600 seconds", so now I can never edit into the OP the somewhat critical information that you're not supposed to clone that "asekai-packages" repository without
--depth 1 (you'll unnecessarily get 100+ mb of previous releases).
edit: to get the files either
git clone --depth 1 https://codeberg.org/Valenoern/asekai-packages.git or
git clone https://codeberg.org/Valenoern/zensekai-demo.git && wget https://codeberg.org/Valenoern/asekai-packages/raw/branch/master/linux_x11_arm64_debug && wget https://codeberg.org/Valenoern/asekai-packages/raw/branch/master/linux_x11_arm64 (i feel like you can actually leave off the second one because the editor exports a debug version by default, but I'm not sure)
you'll need to compile against OpenGL ES (libGLES)
it is using GLES in the screenshot
Yeah, I found it a bit confusing that although godot should be using "GLES 2" I was getting an error about "libGL.so". As I said, I would have been passing it a binary made on a pinebook pro (arm64 Arch/manjaro) so I guess that was using "libGL"?
@Elleo Do you have any information about how to use the libGLES already in ubuntu touch?
My next step apart from sorting out libraries was going to be to try to compile click packages on arm64 and I wonder if that would make the library part easier.