I tried to follow the instructions at integrityapp.com...

integrity seems broken

 $ git remote -v
origin  git://github.com/integrity/integrity (fetch)
origin  git://github.com/integrity/integrity (push)
 $ git pull
Already up-to-date.
 $ ruby -v
ruby 1.8.7 (2011-02-18 patchlevel 334) [i686-darwin10.6.0], MBARI 0x6770, Ruby Enterprise Edition 2011.03
 $ gem -v.
1.6.2
 $ gem list

*** LOCAL GEMS ***

bundle (0.0.1)
bundler (1.0.11)
rake (0.8.7)
 $ bundle install
Updating git://github.com/tobi/delayed_job.git
Updating git://github.com/Manfred/broach.git
Updating git://github.com/qrush/nap.git
Fetching source index for http://rubygems.org/
Bundler could not find compatible versions for gem "json":
  In Gemfile:
    broach depends on
      json (~> 1.4)

    json (1.1.9)