Then I’m at a loss, and you might have an issue reaching them especially on Android and/or iOS, as those are rather closed operating systems.
On windows and osx I reckon it should be possible to detect where you are somehow, and use that to produce a proper base for your links. I’m on mobile right now, so can’t really check exactly how to do so.
Will the sub-links be the same on the various platforms, so it’s just the base which will change? And what plugins do you intend to use? Templater? Dataview?