nh

Included with Lifetime

$97 forever

Switch NixOS/Home Manager configs with nh — cleaner interface for builds, switches, and garbage collection. Use when running os/home switch or pruning old generations.

General

What this skill does

# nh (Nix Helper)

Cleaner interface for Nix operations — builds, switches, and garbage collection with readable output.

## Switching Configuration

Build and activate a configuration:

```bash
nh os switch path:. # NixOS — build and activate
nh os test path:. # Build and test (rollback after timeout)
nh os build path:. # Build only, don't activate
nh os boot path:. # Make it the boot default without activating
```

Home Manager:

```bash
nh home switch path:. # Build and activate Home Manager config
nh home build path:. # Build only
```

macOS with nix-darwin:

```bash
nh darwin switch path:. # Build and activate darwin config
```

Path inference works — `nh os switch` uses the local `flake.nix` in the current directory. Prefix remote paths with `path:` to include untracked files.

## Maintenance & Cleanup

Clean the Nix store and old generations:

```bash
nh clean all --keep-since 7d # Remove profiles older than 7 days
nh clean user --keep 5 # Keep last 5 user profiles
nh clean all # Full garbage collection
```

## Searching & Updating

Search available packages:

```bash
nh search ripgrep # Search by name or description
```

Update flake inputs before building:

```bash
nh os switch --update path:. # Update inputs, then build and switch
```

## Common Options

- `--dry` — show what would happen without making changes
- `--ask` — ask for confirmation (avoid in headless/automated scripts)

Files: 1

Size: 1.9 KB

Complexity: 10/100

Category: General

Source: https://github.com/knoopx/pi/tree/main/agent/skills/tools/nh

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