Anyone know if Quicktime Player 7 still works or is it finally dead?
I only hopped into Mojave and back out, but QT7 launched fine.
And answering myself, Aperture works! ^_^ It was, however, lacking all the adjustments in that pulldown[1], but I'm guessing (hoping) that was due to launching the app from its place on the rMBP's internal drive, whilst booting from a USB stick. But tweaking previous photos - NEF originals - seemed to work normally. Oddly, the RAW Fine Tuning entry seemed to be initially missing from the default set of adjustment tools, but appeared after a few more seconds of fiddling around.
[1] In the Adjustments tab, beneath the color histogram, "Add adjustment". It only contained the single entry "Quick Brushes", and nothing within that submenu either.