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R""(
# Examples
* Run the default app from the `blender-bin` flake:
```console
# nix run blender-bin
```
* Run a non-default app from the `blender-bin` flake:
```console
# nix run blender-bin#blender_2_83
```
Tip: you can find apps provided by this flake by running `nix flake
show blender-bin`.
* Run `vim` from the `nixpkgs` flake:
```console
# nix run nixpkgs#vim
```
Note that `vim` (as of the time of writing of this page) is not an
app but a package. Thus, Nix runs the eponymous file from the `vim`
package.
* Run `vim` with arguments:
```console
# nix run nixpkgs#vim -- --help
```
# Description
`nix run` builds and runs *installable*, which must evaluate to an
*app* or a regular Nix derivation.
If *installable* evaluates to an *app* (see below), it executes the
program specified by the app definition.
If *installable* evaluates to a derivation, it will try to execute the
program `<out>/bin/<name>`, where *out* is the primary output store
path of the derivation and *name* is the `meta.mainProgram` attribute
of the derivation if it exists, and otherwise the `pname` attribute of
the derivation or the name part of the value of the `name` attribute of
the derivation (e.g. if `name` is set to `hello-1.10`, it will run
`$out/bin/hello`).
# Flake output attributes
If no flake output attribute is given, `nix run` tries the following
flake output attributes:
* `defaultApp.<system>`
* `defaultPackage.<system>`
If an attribute *name* is given, `nix run` tries the following flake
output attributes:
* `apps.<system>.<name>`
* `packages.<system>.<name>`
* `legacyPackages.<system>.<name>`
# Apps
An app is specified by a flake output attribute named
`apps.<system>.<name>` or `defaultApp.<system>`. It looks like this:
```nix
apps.x86_64-linux.blender_2_79 = {
type = "app";
program = "${self.packages.x86_64-linux.blender_2_79}/bin/blender";
};
```
The only supported attributes are:
* `type` (required): Must be set to `app`.
* `program` (required): The full path of the executable to run. It
must reside in the Nix store.
)""
|
