Welcome to the club, but remember: you break it, you own it. You will be expected to take part in incident response and explain why it broke and how to remediate it in the post-mortem.
Believe me, I know. I am completely an entirely responsible for a service that receives around 500 requests a second. AI assisted coding has really helped me get through a backlog of things I've wanted to do but never had the time because I was one man.