Comment by nagaiaida

> you only really need a large amount of ram if you run with deduplication enabled, but very few use cases benefit from deduplication, so the better advice is to ensure you don't enable dedup

a lot of people parrot this, but you can always just check for yourself. the in-memory size of the dedupe tables scales with total writes to datasets with deduplication enabled, so for lots of usecases it makes sense to enable it for smaller datasets where you know it'll be of use. i use it to deduplicate fediverse media storage for several instances (and have for years) and it doesn't come at a noticeable ram cost.