No prob! Thank you for your patience.
My friend and I set up a virtual machine (mine is Debian with KDE while my friend uses linux mint iirc). I tried out Terminus and the launcher opens correctly (where you can chose the resolution, framerate, achievements, etc) but when I click "play" then it hangs on a black screen... however I found out that virtual machines aren't for playing games unless you have good specs (and my PC is old enough to drink in the US) so if the launcher doesn't appear on your end then we may have a possible solution.
My friend tried a working project yesterday and it didn't run on his end (it starts and instantly closes the game) which might mean it's a graphic API issue. Game is trying to play in Vulkan API (which my gfx supports) instead of OpenGL; if that's the case then it shouldn't be hard to fix the issue but we are still testing stuff out so I hope you won't mind if it takes longer. Cheers!