# Build

Product: AI Universe
Source: https://docs.fortytwo.io/ai-universe/apps/build/

Open an app and choose the **Build** tab: *Two ways to change this app, both working on the same code.*

![The Build tab of an app](https://docs.fortytwo.io/screenshots/ai-universe/app-build-tab.webp)

:::::cards{cols=2}
::::card{title="In your browser" icon="globe"}
Tell **Studio** what to change, in plain words, and watch it appear beside you. Publish when it is ready. Nothing to install.
::::
::::card{title="In your own coding tool" icon="terminal"}
Get the code and work in Claude Code, Codex, VS Code or Cursor.
::::
:::::

## In your browser with Studio

Choose **Set up Studio** the first time. It is a one-off that takes about two minutes, and every launch after that is instant.

## In your own coding tool

::::steps
### Run the setup script

Choose your operating system, then **Download setup script** or copy the one-line command. The script:

- checks for the tools it needs and offers to install any that are missing
- signs you in to GitHub through your browser, so git can clone and push
- asks for a folder and clones the app's repository into it

It is safe to run twice.

### Open it in your tool

Choose your coding tool and copy the command that opens the app in it.

### Brief your coding assistant

**Copy starter prompt** briefs your AI coding assistant on this app and on what the platform already handles, such as sign-in and the AI gateway. Your organisation's [Wisdom](https://docs.fortytwo.io/ai-universe/apps/wisdom/) is loaded as well.
::::

## Publishing changes

A new app runs the platform's starter version. To ship your own code, **publish a release** in the app's repository on GitHub. GitHub Actions builds it and deploys it to your Azure subscription. The app's **Home** tab shows under *What is running* which release is live.