Can't install/won't work on Windows with Cygwin

[devilgate]

I don't know whether you expect it to work under this environment, but I couldn't get it to. Using the gem install approach I struggled with a series of missing libraries, installing each one as I went, until I hit this:

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error: can't open patch '/cygdrive/c/Users/martin.mccullion/.gem/ruby/2.3.0/gems/nokogiri-1.8.0/patches/libxml2/0001-Fix-comparison-with-root-node-in-xmlXPathCmpNodes.patch': No such file or directory
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*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Even thought that file exists. So I tried using the GitHub approach. That seemed to work, but when I tried to run the installed command, I got this:

$ bundle exec bin/markdown2confluence
Bundler could not find compatible versions for gem "nokogiri":
  In Gemfile:
    markdown2confluence was resolved to 0.0.4, which depends on
      nokogiri

Could not find gem 'nokogiri', which is required by gem 'markdown2confluence', in any of the sources.