Sitting here thinking about the technology I have on hand and how to make the most of it and just discovered some interesting new potentials!
Someone got @postmarketOS booting on an iPhone 7! https://wiki.postmarketos.org/wiki/Apple_iPhone_7/7%2B_(apple-iphone7)
And also just discovered this project to try to encourage the the reuse of old iPads https://ipadlinux.org
Now that Linux is fully working on newer ARM based MacBooks there is no good reason we cant get it to also work on iPhones and iPads
Someone also got Ubuntu network booting on an iPhone https://www.xda-developers.com/apple-iphone-7-ubuntu-linux-checkra1n-project-sandcastle/