Is there a CMS on JSON files?

Question

CMS

Is there a CMS written in PHP that uses JSON files (or other files) as storage, not a database?
I would like ACF PRO only without Wordpress and database. Something like Contentfull , but locally.
CMS on Markdown files are not suitable as they cannot store arrays and objects (in JSON representation).

Answer 1

flextype

Answer 2

Try Flextype - https://github.com/flextype/flextype

Answer 3

Why can't mongodb be connected?