It looks like there is a warning when installing ruby, I wonder if it's even possible to fix it because of ruby-build
asdf: Warn: You have configured asdf to preserve downloaded files (with always_keep_download=yes or --keep-download). But
asdf: Warn: the current plugin (ruby) does not support that. Downloaded files will not be preserved.
It looks like there is a warning when installing ruby, I wonder if it's even possible to fix it because of ruby-build