Peter Münster once asked:

> What should I do please, to prevent ConTeXt from creating
$HOME/luatex-cache?

I'd like to do the same:

$ cd $HOME
$ ls luatex-cache
ls: cannot access 'luatex-cache': No such file or directory
$ context test.tex
$ ls luatex-cache/
context
$ rm -rf luatex-cache
$ export TEXMFCACHE=/tmp
$ context test.tex
mtxrun          | unknown script 'mtx-context.lua' or 'mtx-mtx-context.lua'
$ export TEXMFCACHE=
$ context --version
...
mtx-context     | current version: 2021.03.31 18:04

What environment variable must change to set the luatex-cache directory?

Thank you!