Local previewing is currently not available, as the docs use plugins that are only included in the Insiders' edition of squidfunk/mkdocs-material
.
The docs are built with the Insiders' edition of squidfunk/mkdocs-material
, so to preview them you will need to be added to a private repo and do some local setup to enable the previewing. Contact the devs through the Saltbox discord if you're interested in that.