For testing Flogo, you can easily setup and create your own Instance, and get startet to implement your own Triggers and Activities
After Creation, the following is shown, as you need accept the Eula first ...
but in case you run the shown command:
docker run -it -p 3303:3303 flogo/flogo-docker eula-accept
and you should get the success message, as shown here:
[success] open http://localhost:3303 or http://localhost:3303/_config in your browser