In fact I do use a 12" Macbook for development (C++). It does alright; certainly no worse than the 2011 13" Air it replaced. I should mention the CLion IDE ma

In fact I do use a 12" Macbook for development (C++). It does alright; certainly no worse than the 2011 13" Air it replaced. I should mention the CLion IDE makes it get hot and drains the battery unless you turn off certain IDE features. Code::Blocks does fine on it performance-wise, but initially the UI was too fuzzy to read due to incompatibility with Retina display. I can't remember if that's fixed in the latest version or if I found a work-around. I haven't tried to use XCode. My favorite thing about it is that the taller aspect ratio of the screen reminds me of older 4:3 monitors and IMO is a better layout for programming. Edit: I have yet to plug anything into the single USB-C port except the charger. I don't own any dongles. I just use WiFi and bluetooth.