Launch HN: Moonrepo (YC W23) – Open-source build system
Bazel has a heavy focus on correctness (pretty much to the exclusion of everything else). Where does Moon fall on the correctness gradient? Does it enforce hermecity or deterministic builds or give me tools to accomplish it?<p>In the same vein as those questions how does caching work? Is it content based like Bazel or mtime like Nx et al? If there is no sandboxing does it do input tracking or is there manual "cache key" shenanigans?<p>If the configuration language is YAML how am I expected to implement new behavior? Is that in Rust? Is there a plugin architecture? Do I need to rebuild the tool itself and redistribute it to my build machines and developers? The main appeal of Starlark/Python in build systems is ability to create macros or in many cases define entirely new rulesets to support new tools and languages without needing to modify the complex and performance sensitive core.<p>Sorry for the skeptisicm but build systems are very complex beasts and new entrants like Nx don't measure up to tools like Bazel very well.