Reminds me of when I was a kid and played mono monsters 1 & 2, so sad they shut it down and due to tutorial requiring you go to the shop you get stuck and unable to proceed.
After using owncloud, nextcloud, and file browser, I found file browser to be a lot easier to use and it does everything I need. I don’t need video players or PDF viewer, just simple ui for file broswing.
I’m more of a sidedoor guy myself