# Tutorial - App Engine v1

## **Let's rock**

### Introduction

Applications in Supervisely are key to solving highly specialized Computer Vision problems. In the application catalog ([Ecosystem](https://app.supervisely.com/ecosystem/)) you can find applications for many different Computer Vision tasks. We have provided the ability to create new applications by third-party developers and modify existing ones.

This guide is designed to help a Python programmer develop, debug, and integrate applications to Supervisely.

### Hyper-Quickstart guide

{% embed url="<https://www.youtube.com/watch?v=DwSLTCzhjzY>" %}
Hyper-Quickstart guide
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### Quickstart guide

* [Chapter 1 — Apps without UI \[Headless\]](https://developer.supervisely.com/app-development/advanced/in-depth-app-development/chapter-1-headless)
* [Chapter 2 — Apps with modal window UI](https://developer.supervisely.com/app-development/advanced/in-depth-app-development/chapter-2-modal-window)
* [Chapter 3 — Apps with UI](https://developer.supervisely.com/app-development/advanced/in-depth-app-development/chapter-3-ui)
* [Chapter 4 — Additionals](https://developer.supervisely.com/app-development/advanced/in-depth-app-development/chapter-4-additionals)