[simonw]

Fly.io doesn't set a maximum of 8 hours of alive time on your instance.

Also, MicroVMs can't be exposed directly to the web. Your code running in them can only be executed via API calls with attached auth tokens - so if you wanted to host a public facing API or website with them you'd need to implement your own additional layer in front.

Something I appreciate about Fly (disclaimer: they support my work) is that the pricing is fixed - you pay $1.94/month (less if you suspend your machine) for the smallest instance, up to $976.25/month for the largest (16 CPUs, 128GB) plus predictable costs for volume storage.

The only variable outside your control is bandwidth, and that's unlikely to cause a nasty shock.

Contrast with any of the more "elastic" hosting providers - Vercel, Cloud Run - and you're much less likely to get a horrifying bill if something gets overly-crawled or goes viral.

[anamexis]

Fly.io's Sprites [1] do offer public web access as an option. They also have dynamic pricing.

https://sprites.dev