LumiVault - a photo backup story

I wrote before about my (mis)adventures in photo backup along with some technical musings about bit rot which can lead to corruption of old files across backups. Ever since I wrote those posts I have been working on a solution custom built for my use case: an Apple Photomator and Apple Photos user who wants an easy way to backup albums into external storage (including cloud backup) while ensuring integrity and with built-in error correction. The outcome of that work is LumiVault, a macOS app built using only native frameworks with math (error correction codes) accelerated on the Apple Silicon GPU which helps me preserve my photo albums for future. The flow of the app is pretty simple:add an external volume or two (a folder on internal drive works as well)optionally setup Backblaze B2 bucketclick the image import flowselect an Apple Photos album to importchoose settings: original / JPEG / HEIC, quality, size (or use defaults you can set via settings)import (you may also find an easter…