Hi, Afer reading https://www.lua.org/manual/5.1/lua.html I learned about LUA_INIT.
I have tested it and it works with my lua binary but not with texlua. For my test with lua I used this file with the executable bit on: --- #!/usr/bin/env lua foo = foo or "bonjour" print(foo) --- Then (in a bash shell): export LUA_INIT="foo=\"Guten Tag\"" ./test.lua Guten Tag Now, a copy of the file above but using "/usr/bin/env texlua" in place of "lua" does not act the same: ./test.texlua bonjour echo $LUA_INIT foo="Guten Tag" I checked the manpage of texlua (which is the one of luatex) and see no mention. I searched the lua.pdf documentation for string _INIT and found nothing. Is there some replacement for LUA_INIT functionality? Rationale of my question: I was looking into LaTeX3 documentation and wanted to typeset some of it including implementation. After some quick digging I understood that the l3build script has a variable typesetcmds and I first tried to set it on command line but I learned that it is probably not possible, then I read about LUA_INIT in the Lua documentation as mentioned above, which would be nice if it worked with l3build too (i.e. with texlua). I would be happy to be allowed to do (bash shell) something such as env TEXLUA_INIT='typesetcmds=""' l3build doc rather than having to modify a file (either a l3build config or a dtx file) which sorts of pushes me into rebasing a branch on each pull from upstream. Please CC jfbu if replying Best, Jean-François
