There are a lot of times when I use Siri to add quick notes or reminders or lists and such, and it would be awesome to be able to interface with Obsidian in some way. I also use iOS shortcuts frequently for manipulating data and having a fleshed out way of accessing data from my vault would be really helpful.
I am fairly new to app development but I am aware that there are certainly a lot of challenges in implementing something like this. But if I were to take a stab at it I’d look into the SiriKit lists and notes system intention. https://developer.apple.com/documentation/sirikit/lists_and_notes
I think that would at least provide some sort of basic capabilities. It also looks like the custom intents could be used to allow more powerful interactions in the shortcuts app. (Again this is a little over my head so there may be a lot I am missing)
In theory I can access the text files in my vault from the shortcuts app and read/modify them, however doing anything too involved seems like it would be pretty complicated. I haven’t poked around at it too much yet though.