I Googled to find the repository of a build system I wanted to mention and stumbled upon something else that I found interesting; https://shakebuild.com/ https:

I Googled to find the repository of a build system I wanted to mention and stumbled upon something else that I found interesting; https://shakebuild.com/ https://shakebuild.com/ > Shake is a library for writing build systems. Most large projects have a custom-written build system, and developers working on the project are likely to run the build system many times a day, spending a noticeable amount of time waiting for the build system. This document explains why you might pick Shake over alternative tools for writing build systems (e.g. make, Ant, Scons). https://shakebuild.com/why https://shakebuild.com/why Shake is written in Haskell and is open source.