Hosting a website on an AVR

An AVR64DD32 microcontroller (8-bit, $1, 64 kB flash) was turned into a web server using SLIP over a USB serial adapter and a wired Ethernet-like connection to a Linux machine. Custom minimal TCP/IP and a hardcoded HTTP response allow it to serve a single page, which is proxied over WireGuard to a public VPS for internet access.