I feel like Grav was waaay ahead of its time. For the past year I've been chipping away at something inspired by it but written in Rust with KDL as the format for storing pages (and page data).

Hopefully I'll be able to release it by the end of the summer.

Grav was what convinced me that ultimately a CMS doesn't have to be married to a database, at least for what could be conventionally considered small websites.