In the general category of Bazel-alike build systems, I'd humbly submit that Pants v2 is worth taking a look at. It's a generic, high performance build system for large projects, implemented in Rust with a Python plugin API. The project had a large announcement today in fact! https://news.ycombinator.com/item?id=24911148

For supported languages (the 2.0.0 release and API is brand new, so only Python and Bash are supported so far), the amount of per-file boilerplate is nearly as low as it goes: https://www.pantsbuild.org/docs/how-does-pants-work#dependen...