Just to leave a breadcrumb of hope in this thread, if you have not already found it, go check out the "ish" app. The open source project did the assembly needed to run a real linux machine native from the app. It wont be for the gui lovers, but the fact that I can install any normal linux package I would install on a normal linux host means with the right cli setup it can become an amazing little native programming/automation environment that is being supported by the linux community instead of relying on a single developer to add support.
I'll always have a place in my heart for pythonista3. The "ish" app existing makes the reality of this apps python version going EOL at the end of 2021 hurt a lot less though.