I have taken a huge liking to Mill. It is a build tool written in Scala, but it is not only for Scala at all. The author’s blog post is quite informative (https

I have taken a huge liking to Mill. It is a build tool written in Scala, but it is not only for Scala at all. The author’s blog post is quite informative (https://www.lihaoyi.com/post/SoWhatsSoSpecialAboutTheMillScalaBuildTool.html https://www.lihaoyi.com/post/SoWhatsSoSpecialAboutTheMillSca... ), but the core idea is that a functional program’s call stack maps one-to-one to a build description, where functions are build steps. Something as simple as def cSources = .. def compile() = T { proc(“gcc”, cSources(), “-o”, outputBinary) Path(outputBinary) // last expression is result } def link() = T { // similar to previous one, using compile() somewhere } will automagically convert this description into a build graph, that can be executed parallel and cached.