The build process has been tested on Ubuntu, Windows and macOS using OpenJDK version 11 (and higher).
First install the OpenJDK version 11 (or higher) via the command
sudo apt install openjdk-11-jdk
Afterwards an executable .jar file can be build using the following command
./build.sh
Which will be created in the build/ folder.
On Windows it is recommended to first install scoop and to set up an appropriate build environment by running
scoop install openssh, git
scoop bucket add java
Afterwards install the OpenJDK version 11 (or higher) via the command
scoop install openjdk11
coming soon (maybe...)