Your epub reader was one of the reasons I originally installed NextCloud. It would make me very happy if it were available again. For a while I was hand-patching the manifest to lie to NextCloud, but that stopped working.
I'll have a look at reviving the project now that Nextcloud seems to be stabilising a bit. While the official Mozilla PDF reader has gained the capacity for 2-page viewing like Reader had (I sent them a patch, maybe it helped?) there is no equivalent of the "near-native" look Reader has.
I gave Reader a good kick, shook out the debris from the tree and made it look a bit more like a "modern" (ha!) Nextcloud app and with that it should work again on current Nextcloud. Find it here:
