As a designer who worked at Facebook, I can tell you that learning Quartz Composer will make you a better designer. The learning curve is steep but QC is head and shoulders above any other prototyping environment including HTML/CSS/JS or native prototyping (even for highly technical people).

Having said that, it's only a stepping stone -- we still need to design a better design tool. http://worrydream.com/MagicInk/#designing_a_design_tool

I was hoping this would come with a tutorial or at least an example project. It’s unfortunately a bunch of patches and assumes a lot of knowledge of Quartz Composer. It’s hard to even filter the Origami patches from the rest (best way is Library > Custom)

See below for examples

Oh what! This looks great!

Also, the Prabrothers have a great Quartz Composer resource

Is there an advantage to this above Framer.js in terms of communicating the technical details of an interaction to an engineer?

Really glad this happened. I hope they release the tools to get compositions running on mobile devices soon.

This is super neat, glad that QC is getting some love again after all those years.

Would it be worth learning quartz composer to help define and tweak animations and interactions for iOS? I've been using Edge animate for this purpose, but it's a bit limited and focused on HTML/js output.

Super useful.

Great work from Austin Bales and co.

They really should have used background-position: 50% 0; :)

So this installs custom patches for design prototyping? Looks huge & awesome. Needs a rendering output to HTML + CSS + JS next then we're in business.

This is huge