I use stashapp and love it. I also subscribe to Faphouse. There are things I wish faphouse had that would make it more like stashapp. Example: Markers, Playlists that actually queue to play the next video, custom tags, custom categories, notes. After making an extension for faphouse that does exactly this.. even has a “greatest hits” mode to play through all the markers in all videos, hotkeys to skip to the next marker, add tags to markers, random play markers, and more. It occurred to me after all this, what if there were a stashapp extension for porn sites where, instead of tagging and categorizing a downloaded collection, you’d add favorite vids or playlists from the various sites, and view / select them from within stashapp. For simplicity, I don’t expect the built-in stashapp player to stream content from other sites, but instead spawn an iframe of the specific video or marker or playlist(s) and just play through them.
Just an idea.