Looking For Group
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Isn't Pitchcard already a good place to join people's ideas, and start projects with their author? What difference do you have in mind?
I see Pitchcard as a place to test your ideas. If we want to exchange files or collaborate we would have to use other services like google apps, slack, etc. Pitchcard is also more investor/thinker focused. For this idea, I envisioned having more openness for the roles of a start-up that are neither investor or entrepreneur. Groups could be made of 20 people only.