Hyperorg [1] does convert org(roam)
files into HTML files preserving there links to each other. It's primary use case is to have an HTML representation of your Zettelkasten (aka "second brain") that is usable on your local machine in a browser without running a fancy web server, JavaScript or anything else. Pure HTML5 and CSS.
[1] -- <https://codeberg.org/buhtz/hyperorg>