Awesome! We use Caddy at Sourcegraph (https://sourcegraph.com/search?q=caddy+repo:%5Egithub%5C.com...) and love it. Caddy makes it much easier to run our app in local dev (with HTTPS and other nice things).
Same here! We are huge fans of Caddy at Narration Box (https://narrationbox.com) and we are considering replacing NGINX completely in our Django production stack. (Currently we only use Caddy for development and staging) The author of Caddy, Matt Holt, is a really great person and is extremely responsive on Twitter and GitHub. Highly recommend checking them out.
I'm really curious your reasons / why you like Caddy over Nginx. Thoughts?
https://www.digitalocean.com/community/tools/nginx
https://github.com/yandex/gixy
This is not a criticism of Nginx per se, it comes from a time when Apache is the only other alternative and end-user UX is hardly priority. An analogy would be systemd and pm2, pm2 have few advantages over systemd on paper but in practice it has a much more pleasant UX and saner defaults even though it requires a separate installation on most servers while systemd is available by default. It is the difference between Heroku and AWS. For the 99th percentile of efficiency Nginx still beats Traefik and Caddy, but sometimes scaling servers is cheaper than hiring DevOps staff.