I've been running servers for the pool for years. They are checked regularly for accuracy/uptime or it's score goes down in the pool and eventually gets removed

I've been running servers for the pool for years. They are checked regularly for accuracy/uptime or it's score goes down in the pool and eventually gets removed. I sync from 5 stratum 1 servers and use chrony these days. Facebook had a really interesting engineering blog about building their own timeservers: https://engineering.fb.com/2020/03/18/production-engineering/ntp-service/ https://engineering.fb.com/2020/03/18/production-engineering... Really well written for anyone who is interested.