# nix develop > Run a Bash shell that provides the build environment of a derivation. > More information: <https://nixos.org/manual/nix/stable/command-ref/new-cli/nix3-develop.html>. - Start a shell with all dependencies of a package from nixpkgs available: `nix develop {{nixpkgs#pkg}}` - Start a development shell for the default package in a flake in the current directory: `nix develop` - In that shell, configure and build the sources: `configurePhase; buildPhase`