Duckstation AutoBoot Solved
Duckstation is in my opinion the best way to emulate PS1 games on Android so for anybody grappling with how to get Duckstation to boot games directly via DIG I'd like to share how to fix it. I didn't figure this out, this is from Stenzek the Dev of Duckstation so all credit goes to him. I've tested this out and it works great. The only caveat being it seems to bypass or maybe prevent DIG from extracting any compressed images so .zip or .7zip files will need to be uncompressed for them to work.
So you want to go into the PlayStation system, hit the 3 dots for the system settings, go to manage system and then edit emulators. Select new and fill out the table exactly as follows.