If you use IPv6 globally routable addresses for your services you can avoid all split horizon DNS, NAT, hairpin, etc. With the magic of IP routing and maybe some custom wireguard route advertisements your packets will go through the shortest path wherever your client hosts are.

+1!!

I found this guide very inspiring: https://melonking.net/thoughts/lets-make

It focuses on the creativity and self-creation aspect of writing your own websites. The site is quirky but also geniune.