A friend helps you move.

A good friend helps you move a body

Rich Hall

Goal: return true if the root element looks something like

(Actually do not know why the use of ‘2.0’ and “2.0” in the comparison below can cause a difference in outcome)

CGAffineTransformMakeRotation vs CGAffineTransformRotate

Note to self: net_adm can be used to discover the erlang cluster topology.

Note to self: auth module can help us to find out the cookie of nodes.