Tekui is a great project, I wish there was something with comparable integration to other small languages such as Nim et al. Years ago I tried it with DirectFB output on an old A10 board (Hackberry IIRC). I was never able to sort out why the screen was shifted left (or right) by several dozen pixels, probably a bug somewhere, but performance on that limited processor was fairly acceptable.

Is that currently maintained?

Last time I checked it still compiles and runs fine on modern Debian systems. The only caveat is to edit its configuration file to look for (if necessary) the actually installed version of Lua.

edit: minor correction