Awesome

jbang-asdf

jbang plugin for the asdf version manager.

Install Plugin

asdf plugin-add jbang
or
asdf plugin-add https://github.com/jbangdev/jbang-asdf

Install jbang

# Show all installable versions
asdf list-all jbang

# Install specific version
asdf install jbang latest

# Set a version globally (on your ~/.tool-versions file)
asdf global jbang latest

# Now ag commands are available
jbang

Check out the asdf readme for instructions on how to install and manage versions of jbang.