Please let me know if I’m still not answering your question…
You open the app in your web browser. You click ‘upload’ and upload a file, like your Inkscape SVG. Then you’re picking up from the start of the video. So, in a nutshell, the first step you list above, plus the web interface; all the rest you don’t have to work with.
Yes, yes, and yes.
Our alignment is good but will get much, much better before we ship. There’s some amazing image processing + physical modeling going on that I won’t share, but our resident machine vision PhD is all over it.
No, but it’s trivial to make some out of plywood or acrylic if you want hard references.
Of the UI - not the hardware. Sorry if I was unclear.
I was playing around with it before concluding that, as mentioned previously, I have just enough artistic skill to humiliate myself, no more.