Ahh, it's only from the edge of the screen. At that point it's easier to use the Android back gesture, imo. Maybe it could be changed to allow swiping from anywhere when not on a comment? I don't know what the code looks like, implementing that might be kludgey.
Edit: Should it be working to swipe back if I swipe from the left edge on a comment, or should that still trigger gestures? Right now it's triggering gestures, which makes this change seem odd.
Still having a weird thing where if I swipe back a bit, then decide not to go back (release so that it doesn't go back), and try to again, it takes two attempts, but I assume that's normal.
I did, instructions are here! I don't remember off the top of my head, but I think it's mostly network related tools like nslookup and nmap. You can easily add anything you can find on their package search.