Omnibin is a FUSE filesystem that makes every binary from nixpkgs history available on $PATH without installation, using lazy-loaded metadata from cache.nixos.org. It enables access to over 51,000 top-level binaries and 881,933 total binaries across versions from 2013 to 2026, with support for NixOS, Docker containers, and versioned package access like python3@3.6.2.
omnibin provides access to every binary ever shipped by nixpkgs on a single PATH, with 51,468 packages available on-demand without pre-installation. Using a filesystem interface backed by a SQLite database and lazy-loading from cache.nixos.org, it eliminates the need to guess which packages a sandbox environment will need.