Installing Dave Carolls Sublime Lightning

I've pinged DaveC about this to see if we can get it corrected. I hit similar stumbling blocks when I first built from source but I did eventually get past them. The hg issue is either a path problem (I seem to recall having to add it to my path manually) or perhaps you have not installed this dependency? Waiting for the binaries to come back online is not a bad idea - getting my Go environment setup, learning the basics of how to compile/run/debug etc was "entertaining"...