> For the complete documentation index, see [llms.txt](https://developer.supervisely.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://developer.supervisely.com/app-development/advanced/in-depth-app-development.md).

# 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
{% endembed %}

### Quickstart guide

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