Is there a Ben Eater's Bread Board Computer/6502 type of content creator for home networks?

I’ve been watching some One Marc Fifty stuff on YouTube. I can follow him well, and I’m decent at much of the hardware stuff. At least I can compile OpenWRT or do a basic Gentoo install with a custom kernel. I dread staring at NFTables, but can hack around some. I don’t fully understand networking from the abstract...