[apitman]

The deployment experience is awesome, but for me[0] the killer feature of Fly.io is their Anycast network and features such as FLY_REPLAY and LiteFS that make clusering a breeze[1].

It's wild to me how little support VPS providers have for reducing latency of backend services for users. None of them support Anycast, and there are very few GeoDNS options (it adds more complexity besides).

I just wish Fly.io had cheaper data transfer, since I'm currently having to re-implement (poorly) a lot of their features for an ngrok-like service I'm working on.

[0]: using them for https://lastlogin.io

[1]: Here's all the fly-specific code necessary to run LastLogin in a globally distributed way: https://github.com/lastlogin-io/obligator/blob/37f75cc861f1b...