[solardev]

Have you considered a headless CMS that works solely as data in, data out? The data out side is usually an API, whether native JSON via GraphQL or REST.

I really like DatoCMS for this use case but GraphCMS, Airtable, WordPress with Advanced Custom Forms etc. are all good options.

Basically that gives editors a easy interface to edit arbitrary data in, minus the styling, and gives developers pure data to work with.