Is it technically possible to make a client version of this software?

So I'm looking for a new client, specifically mobile, that's FOSS, easy to use, allows for browsing communities on other instances easily (not just searching for instances, but actually viewing the list of instances, etc).

I'm a dev, so happy to put some legwork into it myself. So my question is - technically, is the UI tied to being run on an instance "directly", or could it be detached, electron- or atom-ified and put into an app?

I can do the work, but before starting I'd like to know :⁠-⁠)