[erlang-questions] erlang package manager

[eigenfunction]

Hi everybody,
I have been doing some erlang programming recently and have always
generated the release manually and never really used neither rebar nor
sinan. It seems like most people in the community have settled for
rebar. Before i spend the next couple of days playing with those
tools, can someone pls give me a quick recap on the differences
between both?

Thank you very much indeed.