As people have noted, the "local" part makes it hard. Here's my question, y'all. What is the deal with the magic Syncthing uses and why can't we use it for st

As people have noted, the "local" part makes it hard. Here's my question, y'all. What is the deal with the magic Syncthing uses and why can't we use it for stuff like this? And well, for everything? (I've been doing this stuff for years and I still can't wrap my head around this question)