dont forget to lowercase the first word and use 'dont', 'wont', 'its' instead of contractions.

Hey everyone, so I'm building this social app where people check out profiles a ton, sometimes multiple times really fast. We're thinking about adding a cache to make those reads quicker. What do you guys usually do when you need to cache data that's read a lot but doesn't change all the time, like user profiles? I'm especially curious about how you handle invalidating the cache. Should we just use a time-to-live (TTL), delete it when something's written, or what? Let me know what's worked for you.