Hey there's a new update of AerialViews out on Github. I'm not the dev, I just like Apple TV screensavers on Android TV. Dev said they're eventually pushing this app to Play Store as well, for now you must sideload it.
https://github.com/theothernt/AerialViews/releases/tag/0.99.1-preview
I use this over Dream because I can set it to play local content. But, I dislike the feature to switch to the next video using arrow buttons on the remote. I want to disable that so that hitting any button on the remote will turn the screensaver off, which is sort of how I would expect a screensaver to behave by default on any system.