This is really awesome and I might try it (definitely bookmarked)

This might seem (offtopic?) but you mention railway and how for a 20mb app the costs become almost negligible and I got curious because I usually refer hetzner to be one of the cheapest but still good/well worthy solution

I find the pricing model of railway the most interesting. I am curious if you know of any other alternatives to railway which follow a similar pricing model as well as I'd like to compare if there are more of such cloud providers which provide this (preferably from a service which is more closer to bare metal than y'know cloud providers perhaps if that makes sense)