This guestbook is served by a 2011 macbook air running Debian Linux with the XFCE desktop environment. The internal SSD is no longer functional, so a 32GB SD card is mounted as the storage and boot drive. The laptop is always plugged in because the battery is toast. The full-stop and comma keys were damaged by a tea spill and are remapped using Xmodmap to the caps lock and plus/minus keys, which I never used anyway. A tunnel is made to my home network using cloudflare. We have Nginx serving an API written in PHP, and the comments are stored in an SQLite database. Vim is my text editor of choice.
Be nice in the comments and please don't hack me.