Building a Fly.io driver for Laravel Sidecar 

Late to the party (as usual) but I don't think you can use their public REST API to build the images. However AFAIK The CLI uses an undocumented GrpahQL API and I think there is a way to put the CLI in debug mode and get it to output the GraphQL API calls it makes for a given command.

I see You are using virtual desktops. Maybe you could record a video showing how you use it, because I've never been able to find a use for it :)

I am not going to call it X because that is ridiculous. lololol awesome.