It would. That’s the trouble. I’ve not found any scripts on iOS that truly run in the background.
For the sake of keeping everything together:
I’m pretty sure you can bypass the FilePicker, but it’ll be messy and platform dependent. The file system differences will change where it lives.
For example, using Omni JS on my Mac, a FilePicker url looks like this:
file:///Users/joebuhlig/Documents/omnifocus/templates/article.txt
That same file, but on iOS:
file:///private/var/mobile/Library/Mobile%20Documents/com~apple~CloudDocs/Documents/omnifocus/templates/article.txt
Regardless, you should be able to change line 20.
Original: var fileURL = urlsArray[0]
Replace with: URL.fromString("file:///Users/joebuhlig/Documents/omnifocus/templates/article.txt");