At first I was thinking this was more general, like say you got trapped in Afghanistan with no internet and nothing but a phone line, you could direct your successor to take over your project. But then the process clearly states you have to submit a death certificate.
I agree with gp: why the obscure language. Why not just "in the unfortunate event of your death blah blah blah"?
The port of Swift to Windows barely functions and in every dimension is in worse shape.
It's a shame b/c the language is truly beautifully designed.