Also the docker files do not contain any platform as far as I could see so I'm not sure how one can run Wayang. Make sure you are able to run Wayang within the docker environment with at least Java, Spark, and PostgreSQL. Later we can add more platforms.

Hi @zkaoudi, sorry for the delayed response.
I’ve updated the Docker environment to include a real PostgreSQL service and verified that Wayang can actually execute a plan across PostgreSQL, Java, and Spark inside the container.
I also added a smoke test covering this flow and am currently cleaning up the documentation so the environment is reproducible for hackathon participants.
I’ll push the updated changes to the PR shortly.

Hi @zkaoudi,
I’ve updated the Docker environment based on your feedback and pushed the changes here.
I also published a pre-built image to GHCR so participants can pull the image instead of building the Wayang distribution during setup. I tested the participant flow end-to-end: the image pull took about 12 minutes on my machine, the Wayang and PostgreSQL containers started successfully, and I verified a Wayang plan executing across PostgreSQL, Java, and Spark.
The PR is now ready for review. The pre-built image is available at ghcr.io/mohit-devlogs/wayang-hackathon:latest