Tangential to the topic: I look forward to the day that fast snapshotting and snapshot restoring becomes a thing for all VPS providers like hetzner, digital ocean, and vultr (and all the others).
Especially if a machine is snapshotted, restored, snapshotted again, restored and the cycle continues. Even if what’s stored doesn’t get much larger the subsequent snapshot+restore processes take a little longer each time. Each provider has different timelines with vultr saying it can take up to 60 minutes for a snapshot to restore.
My use case is similar but different to code sandbox. I use a beefy remote machine for development and to keep costs low I fire it up and tear it down on demand and pay only for the hours the machine was up. It works fine for me but I just wish snapshotting+restoring was faster on these services. That would make it perfect.