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Sure. Their steem @account-names are usually on the steemtools.com cards. They can be messages right on steem by sending .001 steem to them with a memo and sometimes their Steemit.chat handles are the same and they could be messaged there. There is a #dev channel there and many also hang out in #witness.

You do realise that's literally the most inefficient way of developing software, right? What you need is a forum. You don't only need it for development, but you also need it for feature requests and bug reports. The fact that these don't exist speaks volumes about the commitment to the openness of this platform by the owners/developers. You literally couldn't have a more disorganised approach to platform development than what you have here.

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