https://github.com/wteuber/wteuber.github.io
bundle exec jekyll serve -le.g. for public/
ruby -run -e httpd . -p 3000
curl http://127.0.0.1:3000/public/ > /tmp/wtghio.tmp
mv /tmp/wtghio.tmp public/index.html$ sb-edit --input path/to/project.sb3 --output path/to/output-folder
FMI, see https://github.com/leopard-js/sb-edit https://leopardjs.com/