Grist [1] desktop [2] is a (kind of) local "wrapper app" over an sqlite database. It is "As extendible as it is flexible" [3]
The problem is I feel the tabular DB format is "too raw" for some usecases. I prefer Outliner/DB combos (like the upcoming logseq DB version) or maybe one of the local Notion alternatives.
This looks amazing. I wish there was a native encryption option so that if the DB were ever leaked, all the info in it would have some reasonable level of protection.