Should you have the need, like I did, to install and deploy projects from your development environment to Opalstack, then now you can using a tool that I built for this purpose. I just released it to github: https://github.com/webtweakers/deploy
It can perform a one time installation and provisioning of your project on Opalstack's servers, including setting up SSH and installing external dependencies. Subsequent updates can be deployed as well. When deploying it makes a backup of the files and database. It is also possible to perform a rollback should the need arise.
The tool uses Fabric for remote control and it can be configured with a relatively simple yaml configuration file. So no need to learn another language. It was specifically designed for my particular Python/Django project where I needed Redis for caching, Celery for task management, Supervisor for service management and a Python version that was not installed on Opalstack's servers. But, in theory, the tool can be enhanced to do more...
Ruby (https://www.ruby-lang.org/), Java (https://www.java.com/en/), PHP (https://www.php.net/), NodeJS (https://nodejs.org/), Circus (https://circus.readthedocs.io/), Uwsgi (https://uwsgi-docs.readthedocs.io/), you name it... I'm looking forward to see your pull requests!