I have a personal blog set up on the cheapest digital ocean droplet and i went ahead with sqlite for it, there is not much traffic on it and i think something like sqlite is actually the best choice for such projects. I did some benchmarking with a rust cli tool, the name i don't recall right now, something like apache bench but simpler. I wouldn't have the same performance if i had mysql or postgres running on the same machine.
jitl|3 months ago