@cryptoctopus,
I also a developer in real life! Unfortunately I am a Java, C# software developer, so I am little bit weak at php coding. But one of my good friend is a php and mobile app developer! I talked to him few days back and actually I am planning to build a community app on STEEM blockchain! So he said NodeJS, this is the thing that we want to learn! I feel the same and started my process to learn NodeJS and STEEM blockchain! When SMT hits, I want to start something on it! So I think you should focus more on NodeJS too!

Cheers~