How do consensus and execution clients find their first peers?

How can they find their first peer? Obviously once a peer is found you can ask them for the IP addresses of their peers, but how do they find the first one? I can’t think of any way to find them without a centralised repository of peer IP’s a bit like a DNS server? Do client teams hard code in the addresses to some nodes they run maybe?

Edit: I also got some good responses in r/EthFinance if anyone wants some more detailed explainers. https://old.reddit.com/r/ethfinance/comments/1gt73qz/daily_general_discussion_november_17_2024/lxlepeb/