`csbt` is a coursier-based sbt launcher. It is extremely experimental, suffering a few issues. In particular, compiling several modules at once (e.g. by running `csbt test:compile` from the coursier sources) often results in spurious scalac errors. Also, it might have issues with `*.sbt` files under `~/.sbt` - the whole point of csbt would be to scrap those for standard configuration files.