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nix3-flake-archive(1) General Commands Manual nix3-flake-archive(1)

Warning: This program is experimental and its interface is subject to change.


nix flake archive - copy a flake and all its inputs to a store


nix flake archive [option…] flake-url


Copy the dwarffs flake and its dependencies to a binary cache:

# nix flake archive --to file:///tmp/my-cache dwarffs
Fetch the dwarffs flake and its dependencies to the local Nix store:

# nix flake archive dwarffs
Print the store paths of the flake sources of NixOps without fetching them:

# nix flake archive --json --dry-run nixops




  • --dry-run
    Show what this command would do without doing it.
  • --json
    Produce output in JSON format, suitable for consumption by another program.
  • --to store-uri
    URI of the destination Nix store

Common evaluation options:

  • --arg name expr
    Pass the value expr as the argument name to Nix functions.
  • --argstr name string
    Pass the string string as the argument name to Nix functions.
  • --eval-store store-url
    The Nix store to use for evaluations.
  • --impure
    Allow access to mutable paths and repositories.
  • --include / -I path
    Add path to the list of locations used to look up <...> file names.
  • --override-flake original-ref resolved-ref
    Override the flake registries, redirecting original-ref to resolved-ref.

Common flake-related options:

  • --commit-lock-file
    Commit changes to the flake’s lock file.
  • --inputs-from flake-url
    Use the inputs of the specified flake as registry entries.
  • --no-registries
    Don’t allow lookups in the flake registries. This option is deprecated; use --no-use-registries.
  • --no-update-lock-file
    Do not allow any updates to the flake’s lock file.
  • --no-write-lock-file
    Do not write the flake’s newly generated lock file.
  • --override-input input-path flake-url
    Override a specific flake input (e.g. dwarffs/nixpkgs). This implies --no-write-lock-file.
  • --recreate-lock-file
    Recreate the flake’s lock file from scratch.
  • --update-input input-path
    Update a specific flake input (ignoring its previous entry in the lock file).