Thanks for sharing, your projects look really neat! Reading your page I realize I know very little about networking at that level of the stack. That might be a good thing to dig into as a way to work around my "AI dread" (or whatever we call the feeling of "what's the point working on that project when an LLM can make it faster" I've been feeling too much lately).
That was where I started, too. I was fine with VLANs, routing in general and so on from datacenter/DevOps/Sysadmin work, but BGP and how the wider internet fitted together beyond the basics was mostly beyond me.
DN42 is a great playground for this thing - as long as you're prepared to put the effort in, it's a very friendly and helpful community. It's fun to build things for the heck of it and there's a lot of weird and wonderful stuff being worked on there.
dn42 is really cool for learning networking at the ISP level