"Given a very long time (far, far away) and an exorbitant amount of persistent pressure, and even out of the most ordinary dirt, a precious diamond will be formed."
This is a sample project of a backend service using modern technologies and best practices regarding software design, architecture, code quality, testing, building, and more.
A comprehensive software documentation can be accessed either as an online website or as a single PDF file.
Technical relevant decisions are well documented in so-called architecture decision records.