The playground is failing because current tl.tl uses os.getenv
to check TL_DEBUG and that fails with an empty string.
The solution is to make os.getenv a bit smarter and return
the empty string only for TL_PATH (to keep current behavior),
and nil for everything else.
The playground is failing because current tl.tl uses os.getenv to check TL_DEBUG and that fails with an empty string. The solution is to make os.getenv a bit smarter and return the empty string only for TL_PATH (to keep current behavior), and nil for everything else.