On one hand, technical folks don't care what you are.  On the other hand, they're distinctly uncomfortable with femininity -- they're okay with women in the workplace, so long as they dress like men.  So... coming out as transgender went okay.  Wearing dresses at work is less okay.  I knew this would be coming, having heard stories from several women in math and physics.  But, I feel like I'm making space for femininity in tech.