The first release: opal install, with prebuilt binaries for Linux and macOS and an install script.
To install Opal v0.1.0
curl -fsSL https://raw.githubusercontent.com/saintparish4/opal/master/install.sh | OPAL_VERSION=v0.1.0 bash
Full Changelog: https://github.com/saintparish4/opal/commits/v0.1.0