If you publish through the MS Store, it only costs $19 to verify an individual (one off, not a subscription) and they sign it for you. So that's pretty cheap, well within the range of a hobby project.
If you don't have some kind of signed identity then the concept of "your own" app doesn't exist, so indeed in that model you get permission to do what you want more or less. That's why it requires administrator elevation, whereas real signed packages don't. Of course this model is identical to the normal pre-MSIX model where any app installer can fiddle with any other app's files.
You can put it in Trusted People, I think. I'd have to check the code to see where we put it.
If you don't have some kind of signed identity then the concept of "your own" app doesn't exist, so indeed in that model you get permission to do what you want more or less. That's why it requires administrator elevation, whereas real signed packages don't. Of course this model is identical to the normal pre-MSIX model where any app installer can fiddle with any other app's files.
You can put it in Trusted People, I think. I'd have to check the code to see where we put it.