Xbmcremote is since this morning also available in Jolla Harbour. Although it lacks some features (so I would recommend using the OpenRepos version)

The features the Harbour version is missing are:

• No haptic feedback on the keypad (and thus gesture pad, which IMO is quite annoying as you lack the click feedback)
• No volume control, as it's implemented by using the hardware volume buttons, but it isn't allowed to listen for those key presses
• No caller name visible when you receive an incoming call. Calls can be detected, but to get the contacts name the app needs to read the contact list, which also isn't allowed.