It's a pretty fair list of things I have come across in my career. As lead, it's my job to know at least generally about all these things, and for many to have

It's a pretty fair list of things I have come across in my career. As lead, it's my job to know at least generally about all these things, and for many to have deep experience and intuition into others. The breadth of my frontend career has only kept expanding over the last 10 years, it's definitely harder than when I started.