Interesting read, it does seem like time to start looking at horizontally scaling the workers based on request pressure. Having a dynamic number of workers that can do the database updates and then quickly release the mutex should increase throughput.

I created an account on Scaleway just to check prices, which seem to be the same as Hetzner. But looking around online I find that people are heavily in favor of Hetzner over Scaleway due to reliability and service, so I’m leaning more toward Hetzner.

Is the 1€/month price permanent or a limited time deal where it will go up later? Because I didn’t see that kind of pricing on their site which wouldn’t go up to 12€/month after a year.