atm, it doesn't work well because of some recent commit, technically, the server adds fake player (without client) giving them harcoded input (left or right)
i use lubuntu 18.04 (made from ubuntu 18.04) on an old 32bit pc; the game worked fine until some months ago; but now the game crashes and exits constantly, after arbitrary amounts of time after firing up the game; if i build the game from github and fire it from the terminal with ./teeworlds, when it crashes, i get "intel_do_flush_locked failed: No space left on device" in the terminal
15:16
the crashing happens on all the versions i tried, including the flatpak and the archive downloaded from teeworlds.com; the unofficial snap is only for 64 bit unfortunately
nope; i only get some "failed" messages: "[2020-04-08 18:01:40][storage]: couldn't open storage.cfg" or "[2020-04-08 18:01:40][console]: failed to open 'autoexec.cfg'"
15:22
other than that - only general info: bounding keys, getting data etc
I mean normally there's a prompt like user@host directory$ ./teeworlds
15:27
anyway, googling around the internet a bit, https://forums.factorio.com/viewtopic.php?t=59040, similar issues for arch linux, ubuntu and fedora, suggests that there is an issue with a driver of your graphics card (returns an ENOSPC error when there are too many textures)
15:28
I don't really know what the best course of action here is. maybe teeworlds leaks textures(?) could you try running teeworlds in a debugger?
15:28
with your self-compiled ./teeworlds version, try running gdb ./teeworlds, and then enter run in the prompt
15:29
after it crashes, enter bt in the prompt and tell us the output