tup: tup (file-based build system) tup: tup: Tup is a file-based build system for Linux, OSX, and Windows. It tup: takes as input a list of file changes and a directed acyclic graph tup: (DAG). It then processes the DAG to execute the appropriate commands tup: required to update dependent files. Updates are performed with very tup: little overhead since tup implements powerful build algorithms to tup: avoid doing unnecessary work. This means you can stay focused on tup: your project rather than on your build system. tup: tup: