The GitHub Actions workflow builds this site with the official Pages Jekyll Docker action image. Use the same image locally to avoid host Ruby/Bundler version mismatches:
make build
make serveThis will rebuild the site, then serves _site at http://localhost:4000.
Useful overrides:
PAGES_PORT=5000 scripts/pages-serve
PAGES_DESTINATION=./_site-preview scripts/pages-build
PAGES_JEKYLL_IMAGE=ghcr.io/actions/jekyll-build-pages:v1.0.13 scripts/pages-build