DotSlash is a command‑line utility that lets developers replace bulky, platform‑specific binaries (and wrapper scripts) with a tiny, human‑readable JSON file that describes where to fetch the appropriate executable for each OS/architecture. By keeping only these descriptor files in source control, teams can vendor tools such as compilers, runtimes, or other build‑chain binaries while keeping repositories small and ensuring reproducible builds across environments. It’s aimed at software engineers who need to bundle external toolchains directly in their projects without managing separate binary files manually.