nostr:nprofile1qqswwud0pvzu362lehm0av6sq4zd97cue5uy0z8f7jgtk0hz368dvmcpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhszxmhwden5te0wa5x2ct59e5xzurs096xzan9wfhzucm09uqsuamnwvaz7tmwdaejumr0dshsdms043 is working on a relay monitor. What you store is up to you. I'd recommend checking my own implementation, grain 🌾. It's very configurable and has purging built in that you can fine tune with extensive whitelisting capabilities. Not much storage is needed unless you're running a mega relay and never purge. I have a couple dozen people whitelisted and it's using like 35mb. My relay also purges events from all non whitelisted users but allows anyone to write to it. When I implement WoT I'll also have a configuration for excluding WoT from purging. I had a lot of the same questions and no implementation was as configurable as Id like it to be without writing a bunch of external code, most likely in something I'm not proficient in. So I made my own implementation. GitHub is on my profile. There's also info about grain on my website linked in my profile. I'd be happy to help you set I up too if you'd like to try it.