Check Imaginary Tubes:
Imaginary Tubes is a procedural generation project that aims to create, as its name suggests, fictional subway maps inspired by the London Underground map. The Twitter account displays a new map each number of hours.
Imaginary Tubes is written in Javascript, using Fabric.js to generate the image, and Tracery to generate the station names.
It began as a Glitch project, but after Glitch changed the allowances for the free tier, I wrote a Docker script, and I run it in my home as a Docker container. A local cron ensures that the project tweets regularly.