A question came up on IRC earlier about Overleaf, LaTeX and compiling to use the \usepackage{arabluatex} package.

I suggested that it is possible to change the compiler to use LuaTeX and made the following video to help others with this

https://diode.zone/videos/watch/261cb1bd-9758-4945-800a-d81e57c7bde7

overleaflatex@diode.zone

Hopefully this helps others.