R""( # Examples * Create the lock file for the flake in the current directory: ```console # nix flake lock warning: creating lock file '/home/myself/repos/testflake/flake.lock': • Added input 'nix': 'github:NixOS/nix/9fab14adbc3810d5cc1f88672fde1eee4358405c' (2023-06-28) • Added input 'nixpkgs': 'github:NixOS/nixpkgs/3d2d8f281a27d466fa54b469b5993f7dde198375' (2023-06-30) ``` * Add missing inputs to the lock file for a flake in a different directory: ```console # nix flake lock ~/repos/another warning: updating lock file '/home/myself/repos/another/flake.lock': • Added input 'nixpkgs': 'github:NixOS/nixpkgs/3d2d8f281a27d466fa54b469b5993f7dde198375' (2023-06-30) ``` > **Note** > > When trying to refer to a flake in a subdirectory, write `./another` > instead of `another`. > Otherwise Nix will try to look up the flake in the registry. # Description This command adds inputs to the lock file of a flake (`flake.lock`) so that it contains a lock for every flake input specified in `flake.nix`. Existing lock file entries are not updated. If you want to update existing lock entries, use [`nix flake update`](@docroot@/command-ref/new-cli/nix3-flake-update.md) )""