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I'm a professional programmer for more than 10 years and I do mobile app development (React Native) daily for the last three. This includes personal projects like ZenTasktic (macOS and iOS app). I was a STEEM witness for almost 3 and a half years and I'm a HIVE witness since day one.

There is more information about my professional background here: https://peakd.com/me/proposals/92

Thank you for your reply. I was more curious about development within the Steem/Hive ecosystems outside of the witness node and your site(s) above. I don't access Peakd, so I won't be able to see that link without giving Peakd some permissions. No worries if this is personal.