Just pull it out of the browser and publish it as its own app.

I would really appreciate it if the classic Edge team decides to release a standalone epub reader based on it. There's a reason (or many reasons actually) we want the Edge classic EPUB reader back. Really hoping for I'm aware of Calibre, been using it forever, way before mobile computing became ubiquitous. On the interface and functionality of the classic Edge reader - great font rendering, fast, super smooth, real-time built in dictionary and pronunciation on word selection, just overall an elegant app it's the sum of the nice little parts that make it superior to any other ebook reader on Windows. too many to list or remember right now). Nothing else comes close, and I will say I have tried them all (both win32 'programs' like Calibre or kindle as well as UWP store apps - Freda, FictionBookReader, LightReader. It is true Edge classic is a browser, not an ebook reader, but if you've used any number of ebook readers on Windows, you will agree that the Edge epub reader is miles beyond any other application out there (note: for actually 'reading' ebooks, not 'managing' a digital library). I'm aware of Calibre, been using it forever, way before mobile computing became ubiquitous.

Calibre ebook add plugins