The "Garage" addon Package for Pharo offers a straightforward interface to various relational databases, such as MySQL and MariaDB. However, some users have encountered issues with the installation instructions provided at
http://guillep.github.io/DBXTalk/garage/installation.html. If you're experiencing difficulties with the installation process, you're not alone. It's possible that the instructions may contain errors or require additional steps to work correctly. I recommend reaching out to the Pharo community or the package author for assistance in resolving the installation problem.