If I‘m not out of turn, I have a related question that I just might be incorrectly categorizing. Disclaimer: I am not a Developer. I am a Program Manager thats trying to assign a new dev team to tackle a similar problem space. Definitively, not a large user base, not for profit, but a very specific scientific need that requires uniformity/standardization. Think, like, a USB drive that needs to be loaded with a specific key, for things to boot and work. Maybe 1-2 total files at one time, and they change often. The goal for us to be able to write a custom app, to download today’s files, 1-2 total, probably from something simple like Box.com through the API Examples. The App will only ever pull them down, and only keep the newest correct ones. The user would need to be able to put a put a USB-C Drive into an iPad (Mini or pro), and copy those files to the drive. Then the drive goes where it goes, does what it does. :) Rinse. Repeat. I’m not savvy on the meaning of DEXT and LUN, but given the circumstances/requirements, is that still the issue at hand? Is this something we can open a Enterprise Developer Ticket to get some hand holding, for? Note: If we needed to specify a model of drive, we could stick to one for a while. We also understand we might need to do all the formatting outside of the device, limitations, etc. It’s just about getting a pair or three of files onto a normal flash drive, repeatable, with hopefully a clever and nice UX!