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I don't like front end so much, I am lacking some knowledge of react js which is heavily used in condenser, but I am pretty familiar with C++, even though it is still pretty hard for me to follow the code on Steem, but in time it always gets better. I am sad that I don't have so much time to invest in it right now...

Even though I understand why it can be simple to start with the condenser, because in this way a new developer gets used with the Steem API and then he can move to Steem to get a deeper understanding of what's behind.

For C++, your best bet is probably the steem repository, but I don't know how many "easy" issues there are to solve there. You could just start by reviewing the incoming PRs to see if you understand them, and going through the issues to see if anything looks interesting and within your comfort level.

Thanks, I really appreciate your help!