I don't, and to be honest I've always been out of my comfort zone doing it. Ironically, as a result, I'm more comfortable reading ObjC than Java as I've bridged more in iOS even though I spent the first 2 years professionally writing Java.
I'd love (if I had the time) to progress more in native development, I think it'd be the thing that'd help me become a better React Native developer. Realistically you can achieve absolutely anything so long as you have the Native Code to back it up.
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