diff --git a/.github/onboarding.md b/.github/onboarding.md
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+This step-by-step guide will support you on your way to your first pull request (PR) at Catrobat. To achieve this, we will guide you through the following steps:
+1. Workspace Setup
+2. Finding your first Ticket
+3. Implementing your first ticket using Catrobat's Contribution Workflow
+
+# 1. Workspace Setup
+First, we will show you how to set up your working environment and verify the correctness of this setup.
+
+
+## a. Installing the IDE and Tools
+We recommend using [Xcode](https://developer.apple.com/xcode/) as all our contributors do. Please find the IDE version suitable for your operating system on the website and install it on your computer.
+
+We use SwiftLint to enforce Swift style and conventions. You need to install and use it as all PRs will be checked against style and coding guidelines. We recommend you install the [Homebrew package manager](https://brew.sh/) first. Afterwards, install SwiftLint using the following command:
+
+```diff
+brew install swiftlint
+```
+
+The following rules are used to lint Swift files for the Catty project:
+- [Catty Rules](https://github.com/Catrobat/Catty/blob/master/src/.swiftlint.yml)
+- [Catty Rules Autocorrect](https://github.com/Catrobat/Catty/blob/master/src/.swiftlint.auto.yml)
+
+
+## b. Repository Setup
+### (I) Git Setup
+At Catrobat, we use Git to keep track of changes in our codebase. If you have not installed Git on your computer yet, please follow the [official guide to set up Git](https://docs.github.com/en/get-started/quickstart/set-up-git).
+
+### (II) Catrobat's Forking Workflow
+To enable the contribution of people like you, we decided to use a forking workflow. In a nutshell, this works as follows. First, everyone who wants to contribute creates (=forks) a personal copy of our repository (=fork). The contributor then makes changes on his fork and informs the community about the changes via a PR. A core contributor will review the changes in the PR. If the changes are accepted, the core contributor will merge the changes into the original repository of Catrobat.
+If you are unfamiliar with Git or have not used it recently, the official guide about [forking a repository](https://docs.github.com/en/get-started/quickstart/fork-a-repo) is a good starting point.
+
+### (III) Setting up your Fork
+Now that you know how to work with Git, it is time to set up your fork by executing the following steps:
+- [Fork](https://docs.github.com/en/get-started/quickstart/fork-a-repo#forking-a-repository) the [repository of Catty](https://github.com/Catrobat/Catty)
+- Clone the fork:
+  - [via Xcode](https://developer.apple.com/documentation/xcode/configuring-your-xcode-project-to-use-source-control), or
+  - [via Git Bash](https://docs.github.com/en/get-started/quickstart/fork-a-repo#cloning-your-forked-repository) and open it in your IDE manually
+- [Configure synchronisation](https://docs.github.com/en/get-started/quickstart/fork-a-repo#configuring-git-to-sync-your-fork-with-the-original-repository) of your fork
+
+
+## c. Setup Verification
+After you have opened the Catty project in Xcode you can press the "Run" button. The build setting will automatically check if everything is ok and an iPhone simulator displaying our app should open up upon successful completion of the building process.
+
+Note: Do not test with a physical device as the setup and verification process is too complicated at this stage.
+
+
+
+# 2. Finding your first Ticket
+
+
+## a. Catrobat's Jira Workflow
+At Catrobat, we use Jira to keep track of all issues (stories, tasks, and bugs) in our projects. You can find the Jira project of Catty [here](https://jira.catrob.at/projects/CATTY/issues/CATTY-683?filter=allopenissues).
+If you click "Kanban Board" on the left menu in Jira, you will get an overview of what we are currently working on. You can see that different issues have different statuses (e.g., "Ready for Development"). The collection of all statuses makes up our Jira workflow that transparently shows the project's current state to every team member. You can find an overview of our Jira workflow if you click on an issue and the "(View Workflow)" next to the status field.
+It is crucial to follow this workflow to keep the team informed about what you are currently working on.
+
+
+## b. Choosing a suitable Ticket
+We prepared a [pool of beginner tickets](https://jira.catrob.at/projects/PAINTROID/issues/?filter=allopenissues) for our newcomers that should be easy to implement. The tickets are marked with "Experience Level" BEGINNER, and you are free to choose any ticket from this pool that has not been assigned yet ("Status" = "Ready for Development"). Please also check the comments below to find out if another newcomer has already taken the issue!
+
+
+## c. Informing the Community
+As mentioned earlier, it is essential to keep the team updated. As you do not have the permissions for our Jira project yet, you cannot change the status of the issue you chose. Instead, please assign the ticket to yourself by commenting on it using the following template.
+
+```diff
+"I am starting to work on this issue. For the next 10 days, this ticket is assigned to me. If I am not able to create a pull request within 10 days, anybody else can take over this issue."
+```
+
+After you have finished your work and submitted a pull request, you have to use the following template to request a review from our community:
+
+```diff
+"@[Name of the responsible reviewer as mentioned in the beginner ticket] please review my pull request [Link to PR on GitHub (e.g., https://github.com/Catrobat/Catroid/pull/4580)]."
+```
+
+💡 In the upcoming steps, you will find the general workflow of the project. As you do not have permissions for Jira and Confluence yet, please skip all actions that involve Jira ticket status updates and additional information on Confluence!
+
+
+
+# 3. Catrobat's Contribution Workflow
+The general workflow of the project involves the following steps:
+- Claim a Ticket
+- Do the Work
+- Submit the Changes
+
+Please refer to our [contribution guide](https://github.com/Catrobat/Catty/blob/develop/.github/contributing.md) to receive step-by-step guidance throughout your contribution.
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000000..0ad25db4bd
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,661 @@
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+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
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+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
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+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
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+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published
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+    (at your option) any later version.
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+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
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+  If your software can interact with users remotely through a computer
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+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
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+For more information on this, and how to apply and follow the GNU AGPL, see
+<https://www.gnu.org/licenses/>.
diff --git a/README.md b/README.md
index 93bfaa72c5..0fa4752cfe 100644
--- a/README.md
+++ b/README.md
@@ -1,79 +1,52 @@
+⚠️ **__If you have not heard about who Catrobat is, what we are doing and in what ways you can contribute, then you might want to take a step back and check out the start of our [step-by-step guide](https://github.com/Catrobat/Catroid/blob/develop/README.md).__**
+```diff
+👷 TODO: Change link to README in Catrobat's .github repository when added!
+```
+💡 *If any step in the following process is unclear, misleading, or incorrect, you can directly contribute by issuing a pull request with the updated information!*
 
-Catty
-=====
-[![](https://jenkins.catrob.at/buildStatus/icon?job=Catty%2Fdevelop)](https://jenkins.catrob.at/job/Catty/job/develop/) ![](https://img.shields.io/github/release/catrobat/catty.svg) ![](https://img.shields.io/github/languages/top/catrobat/catty.svg)
 
-Catty, also known as **Pocket Code for iOS**, is an on-device visual programming system for iPhones.
 
-Catrobat is a visual programming language and set of creativity tools for smartphones, tablets, and mobile browsers. Catrobat programs can be written by using the Catroid programming system on Android phones and tablets, using Catroid, or Catty for iPhones.
+# Catty
+Catty, also known as "Pocket Code for iOS", is an on-device visual programming system for iPhones. If you used an Apple device in the previous steps, this is exactly the app that enabled you to create your first small Catrobat game.
 
-For more information oriented towards developers please visit our [developers page](http://developer.catrobat.org/).
 
-[![Download on the App Store](https://upload.wikimedia.org/wikipedia/commons/3/3c/Download_on_the_App_Store_Badge.svg)](https://catrob.at/PCios)
+## Team Culture
+We work as a team and expect everyone to follow the rules. In our daily work, we use the methods listed below to create high-quality code. We support each other but also anticipate newcomers to learn about our coding principles proactively:
 
-# Issues #
+- [Test-Driven Development](http://wiki.c2.com/?TestDrivenDevelopment)
+- [Clean Code](https://www.planetgeek.ch/wp-content/uploads/2013/06/Clean-Code-V2.2.pdf)
+- Jira Workflow
+- Style Guide
+- Code Reviews
+- Pair Programming
+- Biweekly Meetings (remote)
 
-For reporting issues use our [Jira issue tracker](https://jira.catrob.at/secure/CreateIssue.jspa?pid=11901&issuetype=1). Before creating a new bug, please browse our currently open issues [here](https://jira.catrob.at/secure/IssueNavigator.jspa?reset=true&jqlQuery=project+%3D+CATTY+AND+resolution+%3D+Unresolved+ORDER+BY+priority+DESC%2C+key+DESC&mode=hide).
+## Technologies
+Below you can find an outline of the technologies we currently use at Catty. If you want to contribute to our team, your tech stack should cover most of the technologies. But don't worry! If you are uncertain about a specific technology, you can learn it along the way. Google is your friend ;)
 
-# Contributing #
+### Languages
+[![Objective-C](http://img.shields.io/badge/Objective_C-darkblue)](https://developer.apple.com/library/archive/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/Introduction/Introduction.html#:~:text=Objective%2DC%20is%20the%20primary,capabilities%20and%20a%20dynamic%20runtime.)
+[![Swift](https://img.shields.io/badge/Swift-with_SwiftLint-green?labelColor=darkblue)](https://developer.apple.com/swift/)
 
-We welcome all offers for help! If you want to contribute we suggest that you start with [forking](https://help.github.com/articles/fork-a-repo/) our repository and browse the code. You can then look at our [Jira issue tracker](https://jira.catrob.at/issues/?jql=project%20%3D%20Catty%20AND%20status%20%3D%20%22Ready%20For%20Development%22%20AND%20%22Experience%20Level%22%20in%20(BEGINNER%2CTRAINING)) and start working on a ticket. It is recommended to start your contribution on a ticket labelled as *TRAINING* or *BEGINNER* ticket. We strictly use [Test-Driven Development](http://c2.com/cgi/wiki?TestDrivenDevelopment) and [Clean Code](http://www.planetgeek.ch/wp-content/uploads/2013/06/Clean-Code-V2.2.pdf), code developed in a different style will not be accepted. After you have implemented a certain ticket, hand in a pull request on GitHub and have a look at our pull request template.
+### Infrastructure (IDE, Version Control, Issue Tracking, ...)
+[![Xcode](https://img.shields.io/badge/Xcode-purple)](https://developer.apple.com/xcode/)
+[![SwiftLint](https://img.shields.io/badge/SwiftLint-purple)](https://github.com/realm/SwiftLint)
+[![macOS](https://img.shields.io/badge/Mac_(macOS_latest_version)-must_have-green?labelColor=purple)](https://www.apple.com/macos/)
+[![iOS](https://img.shields.io/badge/iPhone_(iOS_latest_version)-nice_to_have-green?labelColor=purple)](https://www.apple.com/ios/)
+[![Git](https://img.shields.io/badge/Git-purple)](https://git-scm.com/)
+[![Jira](https://img.shields.io/badge/Jira-purple)](https://jira.catrob.at/secure/Dashboard.jspa)
 
-If you want to implement a new feature, please ask about further details on [Google Groups](https://groups.google.com/forum/#!forum/catty-ios).
+### Knowledge Repository
+[![Confluence](https://img.shields.io/badge/Confluence-orange)](https://confluence.catrob.at/)
 
-<!--
- 1. Make sure you have installed [Brew][1], a package manage for OSX, which the `bootstrap` script uses to pull dependencies
- 1. Now install xctool and cmake by executing following lines at the command-line prompt:
- `sudo brew install xctool`
- `sudo brew install cmake`
- 1. Checkout our repository
- `git clone ...`
- 1. Update submodules
- `git submodule update --init --recursive`
- 1. Call bootstrap script of ObjectiveGit library
- `Catty/objective-git/script/bootstrap`
- 1. `sudo brew install homebrew/versions/perl516`
- -->
+### Communication
+[![Slack](https://img.shields.io/badge/Slack-green)](https://slack.com/)
 
-## Learn iOS development
 
-We recommend [Developing iOS 11 Apps with Swift](https://itunes.apple.com/us/course/developing-ios-11-apps-with-swift/id1309275316) from the Stanford University.
+## Start Contribution
+If you feel confident that your tech stack matches our requirements, then we invite you to [start contributing](https://github.com/Catrobat/Catty/blob/develop/.github/onboarding.md)!
 
-## Start setting up the working environment:
-
-* Install [Xcode](https://itunes.apple.com/us/app/xcode/id497799835?mt=12) 13.0 or newer and [SwiftLint](https://github.com/realm/SwiftLint)
-
-* Clone this repository and open [Catty.xcodeproj](src/Catty.xcodeproj)
-
-* If you have any further questions please use our [Google Group](https://groups.google.com/forum/#!forum/catty-ios)
-
-# License
-
-The Following License Header should be used for all header and source files.
-
-## License Header (for source and header files)
-<pre lang="objective-c"><code>
-/**
- *  Copyright (C) 2010-2022 The Catrobat Team
- *  (http://developer.catrobat.org/credits)
- *
- *  This program is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU Affero General Public License as
- *  published by the Free Software Foundation, either version 3 of the
- *  License, or (at your option) any later version.
- *
- *  An additional term exception under section 7 of the GNU Affero
- *  General Public License, version 3, is available at
- *  (http://developer.catrobat.org/license_additional_term)
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- *  GNU Affero General Public License for more details.
- *
- *  You should have received a copy of the GNU Affero General Public License
- *  along with this program.  If not, see http://www.gnu.org/licenses/.
- */
-</code></pre>
-
-[1]: http://brew.sh
+## Issues
+You found a bug? 
+1. Perfect, please check the [open issues on Jira](https://jira.catrob.at/projects/CATTY/issues/?filter=allopenissues) first to avoid duplicate tickets!
+2. If the bug has not been reported yet, please report it using the [issue template on Jira](https://jira.catrob.at/secure/CreateIssue.jspa?pid=11901&issuetype=1).