This plugin is now kindly maintained by @ohmer because I was asleep at the wheel when they made a PR to fix some issues. Please send any patches to their fork.
Originally from td7x / asdf / terragrunt on gitlab where it no longer appears to be maintained.
Terragrunt plugin for the asdf version manager. Check out the asdf readme for instructions.
asdf plugin-add terragrunt https://github.com/lotia/asdf-terragrunt