Sure but then you need a replacement that can do equivalent things (so for vim, notepad would be enough, but iOS doesn't even come with a text editor. You have

Sure but then you need a replacement that can do equivalent things (so for vim, notepad would be enough, but iOS doesn't even come with a text editor. You have notes but that only edits files in your mailbox. You can install an app but the app is stuck in its own sandbox etc.) I get the "you should be flexible" but being completely unable to do entire classes of tasks requires more than being flexible about your workflow. Most importantly: all these problems are entirely artificial. There's no actual limitation that creates them, just smartphone vendors declaring "things must be painful."