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# pkgs.mkShell {#sec-pkgs-mkShell}
`pkgs.mkShell` is a specialized `stdenv.mkDerivation` that removes some
repetition when using it with `nix-shell` (or `nix develop`).
## Usage {#sec-pkgs-mkShell-usage}
Here is a common usage example:
```nix
{ pkgs ? import <nixpkgs> {} }:
pkgs.mkShell {
packages = [ pkgs.gnumake ];
inputsFrom = [ pkgs.hello pkgs.gnutar ];
shellHook = ''
export DEBUG=1
'';
}
```
## Attributes
* `name` (default: `nix-shell`). Set the name of the derivation.
* `packages` (default: `[]`). Add executable packages to the `nix-shell` environment.
* `inputsFrom` (default: `[]`). Add build dependencies of the listed derivations to the `nix-shell` environment.
* `shellHook` (default: `""`). Bash statements that are executed by `nix-shell`.
... all the attributes of `stdenv.mkDerivation`.
## Building the shell
This derivation output will contain a text file that contains a reference to
all the build inputs. This is useful in CI where we want to make sure that
every derivation, and its dependencies, build properly. Or when creating a GC
root so that the build dependencies don't get garbage-collected.
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