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Preview your app

Run your app in an isolated live preview, click through real screens, and test the API before anything goes live.

Your first app exists — now see it run. In this step you'll start live previews of both Garage Usta repositories, click through the real screens, and learn what to check before moving on.

Start both previews

  1. Open your business and go to Preview. You'll see a card for each repository — for Garage Usta, the web app and the API.

  2. Start the API preview first. Watch the logs: Evonx restores dependencies, builds the project, creates a temporary Postgres database just for this preview, applies migrations, seeds example data, and boots the API.

  3. Start the web preview. When it's ready, the preview URL becomes active.

Click through like a user

Open the web preview and use it the way your staff would: register a vehicle, open a repair job, change its status. The example data seeded by Evonx gives you something realistic to click on immediately.

Worth checking on a first pass:

  • Do the screens match what you asked for? Missing pieces are normal at this stage — you'll request changes in the next step of the journey.
  • Does saving work? Create something, refresh, confirm it's still there.
  • Open the preview on your phone with the QR code — see Test on your phone.

If something fails

Previews fail for real reasons — a bad migration, a build error. The failing card shows the logs, and Analyse & Fix can read them, explain the root cause, and apply a fix. See Analyse & Fix.

Check your work

You've seen your app running: real screens, real data, on an isolated copy that can't hurt anything. You've probably also spotted things you want to change — good. That's exactly what the next step is for.

Next step

Ask for your first change: Evolve your app with AI. For the full preview system reference, see the Preview Hub overview.

Last updated: September 4, 2026