We've decided to update XKit. It's harder than it looks. We're not in contact with the original XKit Guy, nor do we have access to xkit.info. We currently operate at this blog and on GitHub.
Hi. Thank you so much for doing this. You are amazing. Are there any plans for you to do something with Safari?
Unfortunately, the Safari Developer Program costs $100 a year, and we’re broke, so we’re not planning on updating the Safari extension. Sorry about that.