There's nothing wrong with supporting iOS. What is wrong, however, is Apple's insistence on approving every single instruction iOS devices run, and this policy being realized in hardware. You bought the device. You gave Apple money, they gave you an iPhone. It's yours now, and it's no longer theirs. So why do they still retain any kind of control whatsoever over it? A new iPhone literally won't let you do anything before it gets an okay from the mothership.

It should be illegal for hardware manufacturers to hardcode public keys and hostnames into devices such that the end user can't change them.

Yes I bought the device. Yes I have Apple money, they gave me an iPhone. It’s mine now, and it’s no longer theirs.

> What is wrong, however, is Apple's insistence on approving every single instruction iOS devices run

Why in the world would I trust any of the instructions YOU or ANYONE else have written?

I as a customer don’t care if iOS app developers don’t make any money, sorry I already have all the apps I need and you’ll find other work. As such, I would be ok with iOS sideloading, but only for GPL software. Because otherwise, what other recourse do I as a customer have to trust YOUR instructions?

I have tolerated arbitrary instructions on my desktop/ laptop for 20 years and consistently been bitten by it. There is a reason I no longer do anything important (barring work e.g. banking, email, etc) on my laptop.

Then tell your customers that your product won’t be supported on their shiny Apple hardware and ask them to buy another hardware from a different manufacturer.