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