---
title: "Development"
description: "Dev-only onboarding tools, screenshot background override, diagnostics, and legacy import."
url: "https://docs.closex.org/launchnext/settings/development.html"
markdown_url: "https://docs.closex.org/launchnext/settings/development.md"
site: "CloseX Docs"
product: "LaunchNext"
language: "en"
last_updated: "2026-09-06T14:50:57.000Z"
alternates:
  en: "https://docs.closex.org/launchnext/settings/development.md"
  zh-Hans: "https://docs.closex.org/zh/launchnext/settings/development.md"
  ja: "https://docs.closex.org/ja/launchnext/settings/development.md"
---

# Development

`Development` is for testing and migration workflows. Most regular users can ignore it.

![Development](https://ucarecdn.com/f985e72c-89e5-473e-a464-0410bda6647d/code.webp)

## Available tools

- `Force show onboarding` (fullscreen mode required)
- Screenshot background override (`Pure White`, `Pure Black`, `Clear`)
- Live memory usage readout
- `Show FPS overlay` toggle
- `Show App Unblock Action` toggle
- `Import Legacy (.lmy)` for old archives

## Typical use cases

- QA checks for first-run onboarding flow
- marketing screenshot prep with flat backgrounds
- quick performance sampling via memory and FPS indicators
- migration testing from legacy archive formats

## Important notes

- Force onboarding button is disabled when not in classic fullscreen mode
- FPS overlay is for testing and can increase CPU/memory load
- Background override is preview-only and not persisted

## Show App Unblock Action

`Show App Unblock Action` is off by default. Turning it on adds `Unblock App in Terminal…` to the right-click menu of any app in the grid.

The action asks for confirmation first, then opens Terminal and runs:

```bash
sudo /usr/bin/xattr -r -d com.apple.quarantine <app>
```

macOS may ask for an administrator password. The command removes the download protection marker and skips the normal Gatekeeper check, so use it only on apps you trust.

It sits in Development because it repairs one specific situation rather than being part of normal use.

## Command line interface (CLI/TUI)

The `Enable CLI code` toggle is now in [General](https://docs.closex.org/launchnext/settings/general.md), not in Development.

For full command coverage and examples, see [CLI and TUI](https://docs.closex.org/launchnext/cli-and-tui.md).

## Recommended practice

Before any legacy import, make a snapshot in [Backup](https://docs.closex.org/launchnext/settings/backup.md).