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flutter_dynamic_forms
A collection of flutter and dart libraries allowing you to consume complex external forms at runtime.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
Let's check this mighty project from my colegue https://github.com/OndrejKunc/flutter_dynamic_forms
What you're describing sounds a bit like what you would get if we supported out-of-band updates (i.e. a way to update the app without fetching from the app store). We looked at doing that a few years ago but it wasn't really viable. (see https://github.com/flutter/flutter/issues/14330#issuecomment-485565194)
Then again, there are a few libraries for native development like Epoxy by AirBnB and https://github.com/flipkart-incubator/proteus where they do the same thing.