XKit is now officially available for Opera Next (version 15+).
Since Opera Next uses the Chromium back-end, used by Google Chrome, porting extensions between two are easier now, so I’ve decided to make an official version of XKit for Opera. I’ve been using it for an hour and so far it works like it should, but if you hit any bugs, please let me know.
Due to the way Opera works, it takes two steps to install it, one to download it and then going to the Extensions control panel of Opera to install it. Other than that, it works just like XKit on Chrome.