In your git & sqlite setup, I'm not sure which way round you are thinking - which is the SSOT (Single Source Of Truth) and which is the handy cache.

I've been working on a tool that treats the git repo as the SSOT then lets you dump out all kinds of formats for data work including a sqlite DB. I haven't had as much time as I would like on it but it's at https://pypi.org/project/DataTig/