The website is published at https://eclipse-dataspace-cap.github.io/
For local build, use act
You can list actions with act --list and run a specific job with as below:
act --rm --job build --artifact-server-path public
unzip -o public/1/github-pages/github-pages.zip && tar xfv artifact.tar -C public
python3 -m http.server -d public
# and browse to http://localhost:8000