Farcaster Devs

If Warpcast was open source, what are 1-2 things you would want to learn how we do?

React Native aside, can you get more specific as to what is hard about some of these things. Examples are useful!

4. dms

self explanatory, quite a challenging problem and probably there is some very performant db behind the scenes

3. caching

i expect there is a lot of caching magic so it would be fun to see how it happens behind the scenes

what are the expiration times for any given data pieces, how do you think about invalidating different pieces etc

eg: should every single follow invalidate the follower count cache? probably not

2. feed

naive solution: write a sql query that looks at all posts in the database, ranks them and returns in time to the user

but this would be super slow and expensive

(probably) good solution: generate the feeds for users before they actually request them, read on demand

but getting this right is non-trivial