Testing Locally:
asdf plugin test <plugin-name> <plugin-url> \
[--asdf-tool-version <version>] \
[--asdf-plugin-gitref <git-ref>] \
[test-command*]
asdf plugin test kotlin https://github.com/missingcharacter/asdf-kotlin.git \
"kotlin -help"
Tests are automatically run in GitHub Actions on push and PR.