emilynardoni.com
The deployment process is pretty low tech. After checking out the repository, assuming the fly.io cli is installed, run fly launch to go through the entire build + deploy process interactively. By doing so, one can re-configure the deployment settings.
Alternatively, to simply update the deployment using the existing deployment settings (for example after making some small update to the application), simply run fly deploy.
Note: If you update CSS, bump the cache-buster query parameter in static/html/base.layout.tmpl (the ?v=... on the stylesheet link) so browsers fetch the new version.