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Pre Condition 2: Required Software


It is strongly recommended that you have git installed.

Installed IDE

We suggest IntelliJ IDEA. The Community Edition works well. Most contributors use the Ultimate Edition, because they are students getting that edition for free.

Currently, the 2023.1 version does not work for initial setup. Please head to and get 2022.3.3. You can update the IDE after a proper setup to the newest version.

Other Tooling

We collected some other tooling recommendations. We invite you to read on at our tool recommendations.