I have decided how I am releasing KiFinder: source-only, under GPLv3. There will not be a signed, notarized build you can download and run. If you want it, you clone the repo and build it yourself in Xcode.
That is a deliberate choice, not a limitation I ran out of time to fix. KiFinder started as something I built to solve my own problem, filtering my daughter's preschool photo albums, and it has become one of the better test subjects for how I build software with Sparra. I want it to keep living as a portfolio piece, something other engineers can read, learn from, and build on, rather than turn it into a product I have to package, support, and ship to people whose Macs and photo libraries I have never seen. GPLv3 keeps the code open and keeps anyone's derivative work open too, which fits what I actually want out of sharing it: more people looking at the approach, not a download count.