tldr/pages/common/nix3-edit.md

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# nix edit
> Open the Nix expression of a Nix package in $EDITOR.
> More information: <https://nixos.org/manual/nix/stable/command-ref/new-cli/nix3-edit.html>.
- Open the source of the Nix expression of a package from nixpkgs in your `$EDITOR`:
`nix edit {{nixpkgs#pkg}}`
- Dump the source of a package to stdout:
`EDITOR=cat nix edit {{nixpkgs#pkg}}`