build2 is an open source (MIT), cross-platform build toolchain for developing and packaging C and C++ code. It is a hierarchy of tools that includes the build system, package dependency manager (for package consumption), and project dependency manager (for project development). Key features: Next-generation, Cargo-like integrated build toolchain for C and C++. Covers entire project lifecycle: creation, development, testing, and delivery. Uniform and consistent interface across all platforms and compilers. Fast, multi-threaded build system with parallel building and testing. Archive and version control-based package repositories. Dependency-free, all you need is a C++ compiler. build2/build2