We plan to move layer4 into the standard Caddy distribution eventually. We're still stabilizing it, and once we're happy with it (and have the time and energy to) we'll bring it in.
Exciting! Looking forward to it. I end up needing xcaddy for a few other modules so it's not that big of a deal, but I always feel better using first-party functionality over relying on third-party modules.
There's even a great docker with caddy and the cloudflare DNS-01 module built in which was just what I needed. That saved me having to deal with xcaddy (it was ok, but compiling was slow)
