How can I download app beside play store as I need to sideload

Would really maybe make me switch if j could set up series recordings. I have purchased the service in the past however. It isn't terrible. It tries to sort your channels automatically into categories unlike tvirl

Is there a discord or subreddit?

Always says "URL Not Set" for me. Tried multiple know working playlists

Does this app work on a firestick? Looking to replace iptv extreme. Any advice to record on firestick really appreciated