diff --git a/Gemfile b/Gemfile
index 5cad48f2b..898762237 100644
--- a/Gemfile
+++ b/Gemfile
@@ -1,4 +1,7 @@
 source 'https://rubygems.org'
+# Look for $WORKSPACE, otherwise use "workspace" as dev path.
+
+workspace = ENV["WORKSPACE"] || "~/workspace"
 
 gem 'rails', '3.2.8'
 gem 'jquery-rails', '2.0.2'
@@ -8,8 +11,15 @@ gem 'faker', '1.0.1'
 gem 'will_paginate', '3.0.3'
 gem 'bootstrap-will_paginate', '0.0.6'
 
+gem 'uuidtools', '2.1.2'
+gem 'ruby-protocol-buffers', '1.2.2'
+gem 'pg_migrate','0.1.5' #:path => "#{workspace}/pg_migrate_ruby"
+gem 'jam_db', :path => "#{workspace}/jam-db/target/ruby_package"
+gem 'jam_ruby', :path => "#{workspace}/jam-ruby"
+gem 'jampb', :path => "#{workspace}/jam-pb/target/ruby/jampb"
+gem 'pg', '0.14.0'
+
 group :development, :test do
-  gem 'sqlite3', '1.3.5'
   gem 'rspec-rails', '2.11.0'
   gem 'guard-rspec', '0.5.5'
 end
@@ -34,6 +44,3 @@ group :test do
   # gem 'growl', '1.0.3'
 end
 
-group :production do
-  gem 'pg', '0.12.2'
-end
\ No newline at end of file
diff --git a/Gemfile.lock b/Gemfile.lock
index d639575d7..9fbb92a0f 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -1,3 +1,19 @@
+PATH
+  remote: ~/workspace/jam-db/target/ruby_package
+  specs:
+    jam_db (0.0.1)
+      pg_migrate (= 0.1.5)
+
+PATH
+  remote: ~/workspace/jam-pb/target/ruby/jampb
+  specs:
+    jampb (0.0.1)
+
+PATH
+  remote: ~/workspace/jam-ruby
+  specs:
+    jam_ruby (0.0.1)
+
 GEM
   remote: https://rubygems.org/
   specs:
@@ -42,8 +58,8 @@ GEM
       rack-test (>= 0.5.4)
       selenium-webdriver (~> 2.0)
       xpath (~> 0.1.4)
-    childprocess (0.3.2)
-      ffi (~> 1.0.6)
+    childprocess (0.3.5)
+      ffi (~> 1.0, >= 1.0.6)
     coffee-rails (3.2.2)
       coffee-script (>= 2.2.0)
       railties (~> 3.2.0)
@@ -51,10 +67,10 @@ GEM
       coffee-script-source
       execjs
     coffee-script-source (1.3.3)
-    cucumber (1.2.0)
+    cucumber (1.2.1)
       builder (>= 2.1.2)
       diff-lcs (>= 1.1.3)
-      gherkin (~> 2.10.0)
+      gherkin (~> 2.11.0)
       json (>= 1.4.6)
     cucumber-rails (1.2.1)
       capybara (>= 1.1.2)
@@ -72,10 +88,10 @@ GEM
       railties (>= 3.0.0)
     faker (1.0.1)
       i18n (~> 0.4)
-    ffi (1.0.11)
-    gherkin (2.10.0)
+    ffi (1.1.5)
+    gherkin (2.11.2)
       json (>= 1.4.6)
-    guard (1.1.1)
+    guard (1.3.2)
       listen (>= 0.4.2)
       thor (>= 0.14.6)
     guard-rspec (0.5.5)
@@ -89,15 +105,18 @@ GEM
     jquery-rails (2.0.2)
       railties (>= 3.2.0, < 5.0)
       thor (~> 0.14)
-    json (1.7.4)
+    json (1.7.5)
     launchy (2.1.0)
       addressable (~> 2.2.6)
-    libwebsocket (0.1.3)
+    libwebsocket (0.1.5)
       addressable
-    listen (0.4.2)
+    listen (0.4.7)
       rb-fchange (~> 0.0.5)
       rb-fsevent (~> 0.9.1)
       rb-inotify (~> 0.8.8)
+    little-plugger (1.1.3)
+    logging (1.7.2)
+      little-plugger (>= 1.1.3)
     mail (2.4.4)
       i18n (>= 0.4.0)
       mime-types (~> 1.16)
@@ -105,7 +124,11 @@ GEM
     mime-types (1.19)
     multi_json (1.3.6)
     nokogiri (1.5.5)
-    pg (0.12.2)
+    pg (0.14.0)
+    pg_migrate (0.1.5)
+      logging (= 1.7.2)
+      pg (= 0.14.0)
+      thor (= 0.15.4)
     polyglot (0.3.3)
     rack (1.4.1)
     rack-cache (1.2)
@@ -150,15 +173,15 @@ GEM
       activesupport (>= 3.0)
       railties (>= 3.0)
       rspec (~> 2.11.0)
-    rubyzip (0.9.8)
+    ruby-protocol-buffers (1.2.2)
+    rubyzip (0.9.9)
     sass (3.2.1)
     sass-rails (3.2.5)
       railties (~> 3.2.0)
       sass (>= 3.1.10)
       tilt (~> 1.3)
-    selenium-webdriver (2.22.2)
+    selenium-webdriver (2.25.0)
       childprocess (>= 0.2.5)
-      ffi (~> 1.0)
       libwebsocket (~> 0.1.3)
       multi_json (~> 1.0)
       rubyzip
@@ -167,7 +190,6 @@ GEM
       hike (~> 1.2)
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
-    sqlite3 (1.3.5)
     thor (0.15.4)
     tilt (1.3.3)
     treetop (1.4.10)
@@ -177,6 +199,7 @@ GEM
     uglifier (1.2.3)
       execjs (>= 0.3.0)
       multi_json (>= 1.0.2)
+    uuidtools (2.1.2)
     will_paginate (3.0.3)
     xpath (0.1.4)
       nokogiri (~> 1.3)
@@ -196,13 +219,18 @@ DEPENDENCIES
   faker (= 1.0.1)
   guard-rspec (= 0.5.5)
   guard-spork (= 0.3.2)
+  jam_db!
+  jam_ruby!
+  jampb!
   jquery-rails (= 2.0.2)
   launchy (= 2.1.0)
-  pg (= 0.12.2)
+  pg (= 0.14.0)
+  pg_migrate (= 0.1.5)
   rails (= 3.2.8)
   rspec-rails (= 2.11.0)
+  ruby-protocol-buffers (= 1.2.2)
   sass-rails (= 3.2.5)
   spork (= 0.9.0)
-  sqlite3 (= 1.3.5)
   uglifier (= 1.2.3)
+  uuidtools (= 2.1.2)
   will_paginate (= 3.0.3)
diff --git a/spec/controllers/relationships_controller_spec.rb b/spec/controllers/relationships_controller_spec.rb
deleted file mode 100644
index e0c4e9794..000000000
--- a/spec/controllers/relationships_controller_spec.rb
+++ /dev/null
@@ -1,40 +0,0 @@
-require 'spec_helper'
-
-describe RelationshipsController do
-
-  let(:user) { FactoryGirl.create(:user) }
-  let(:other_user) { FactoryGirl.create(:user) }
-
-  before { sign_in user }
-
-  describe "creating a relationship with Ajax" do
-
-    it "should increment the Relationship count" do
-      expect do
-        xhr :post, :create, relationship: { followed_id: other_user.id }
-      end.to change(Relationship, :count).by(1)
-    end
-
-    it "should respond with success" do
-      xhr :post, :create, relationship: { followed_id: other_user.id }
-      response.should be_success
-    end
-  end
-
-  describe "destroying a relationship with Ajax" do
-
-    before { user.follow!(other_user) }
-    let(:relationship) { user.relationships.find_by_followed_id(other_user) }
-
-    it "should decrement the Relationship count" do
-      expect do
-        xhr :delete, :destroy, id: relationship.id
-      end.to change(Relationship, :count).by(-1)
-    end
-
-    it "should respond with success" do
-      xhr :delete, :destroy, id: relationship.id
-      response.should be_success
-    end
-  end
-end
\ No newline at end of file
diff --git a/spec/factories.rb b/spec/factories.rb
index 1f10f28be..eafc46312 100644
--- a/spec/factories.rb
+++ b/spec/factories.rb
@@ -10,8 +10,4 @@ FactoryGirl.define do
     end
   end
 
-  factory :micropost do
-    content "Lorem ipsum"
-    user
-  end
-end
\ No newline at end of file
+end
diff --git a/spec/models/micropost_spec.rb b/spec/models/micropost_spec.rb
deleted file mode 100644
index c0478c2fb..000000000
--- a/spec/models/micropost_spec.rb
+++ /dev/null
@@ -1,44 +0,0 @@
-require 'spec_helper'
-
-describe Micropost do
-
-  let(:user) { FactoryGirl.create(:user) }
-  before { @micropost = user.microposts.build(content: "Lorem ipsum") }
-
-  subject { @micropost }
-
-  it { should respond_to(:content) }
-  it { should respond_to(:user_id) }
-  it { should respond_to(:user) }
-  its(:user) { should == user }
-
-  it { should be_valid }
-
-  describe "accessible attributes" do
-    it "should not allow access to user_id" do
-      expect do
-        Micropost.new(user_id: user.id)
-      end.to raise_error(ActiveModel::MassAssignmentSecurity::Error)
-    end    
-  end
-
-  describe "when user_id is not present" do
-    before { @micropost.user_id = nil }
-    it { should_not be_valid }
-  end
-
-  describe "when user_id is not present" do
-    before { @micropost.user_id = nil }
-    it { should_not be_valid }
-  end
-
-  describe "with blank content" do
-    before { @micropost.content = " " }
-    it { should_not be_valid }
-  end
-
-  describe "with content that is too long" do
-    before { @micropost.content = "a" * 141 }
-    it { should_not be_valid }
-  end
-end
\ No newline at end of file
diff --git a/spec/models/relationship_spec.rb b/spec/models/relationship_spec.rb
deleted file mode 100644
index 26cf93eb0..000000000
--- a/spec/models/relationship_spec.rb
+++ /dev/null
@@ -1,37 +0,0 @@
-require 'spec_helper'
-
-describe Relationship do
-
-  let(:follower) { FactoryGirl.create(:user) }
-  let(:followed) { FactoryGirl.create(:user) }
-  let(:relationship) { follower.relationships.build(followed_id: followed.id) }
-
-  subject { relationship }
-
-  it { should be_valid }
-
-  describe "accessible attributes" do
-    it "should not allow access to follower_id" do
-      expect do
-        Relationship.new(follower_id: follower.id)
-      end.to raise_error(ActiveModel::MassAssignmentSecurity::Error)
-    end    
-  end
-
-  describe "follower methods" do
-    it { should respond_to(:follower) }
-    it { should respond_to(:followed) }
-    its(:follower) { should == follower }
-    its(:followed) { should == followed }
-  end
-
-  describe "when followed id is not present" do
-    before { relationship.followed_id = nil }
-    it { should_not be_valid }
-  end
-
-  describe "when follower id is not present" do
-    before { relationship.follower_id = nil }
-    it { should_not be_valid }
-  end
-end
\ No newline at end of file
diff --git a/spec/models/user_spec.rb b/spec/models/user_spec.rb
deleted file mode 100644
index 35e51fcd9..000000000
--- a/spec/models/user_spec.rb
+++ /dev/null
@@ -1,214 +0,0 @@
-require 'spec_helper'
-
-describe User do
-
-  before do
-    @user = User.new(name: "Example User", email: "user@example.com", 
-                     password: "foobar", password_confirmation: "foobar")
-  end
-
-  subject { @user }
-
-  it { should respond_to(:name) }
-  it { should respond_to(:email) }
-  it { should respond_to(:password_digest) }
-  it { should respond_to(:password) }
-  it { should respond_to(:password_confirmation) }
-  it { should respond_to(:remember_token) }
-  it { should respond_to(:admin) }
-  it { should respond_to(:authenticate) }
-  it { should respond_to(:microposts) }
-  it { should respond_to(:feed) }
-  it { should respond_to(:relationships) }
-  it { should respond_to(:followed_users) }
-  it { should respond_to(:reverse_relationships) }
-  it { should respond_to(:followers) }
-  it { should respond_to(:following?) }
-  it { should respond_to(:follow!) }
-  it { should respond_to(:unfollow!) }
-
-  it { should be_valid }
-  it { should_not be_admin }
-
-  describe "accessible attributes" do
-    it "should not allow access to admin" do
-      expect do
-        User.new(admin: true)
-      end.to raise_error(ActiveModel::MassAssignmentSecurity::Error)
-    end    
-  end
-
-  describe "with admin attribute set to 'true'" do
-    before do
-      @user.save!
-      @user.toggle!(:admin)
-    end
-
-    it { should be_admin }
-  end
-  
-  describe "when name is not present" do
-    before { @user.name = " " }
-    it { should_not be_valid }
-  end
-
-  describe "when email is not present" do
-    before { @user.email = " " }
-    it { should_not be_valid }
-  end
-
-  describe "when name is too long" do
-    before { @user.name = "a" * 51 }
-    it { should_not be_valid }
-  end
-
-  describe "when email format is invalid" do
-    it "should be invalid" do
-      addresses = %w[user@foo,com user_at_foo.org example.user@foo.]
-      addresses.each do |invalid_address|
-        @user.email = invalid_address
-        @user.should_not be_valid
-      end      
-    end
-  end
-
-  describe "when email format is valid" do
-    it "should be valid" do
-      addresses = %w[user@foo.COM A_US-ER@f.b.org frst.lst@foo.jp a+b@baz.cn]
-      addresses.each do |valid_address|
-        @user.email = valid_address
-        @user.should be_valid
-      end      
-    end
-  end
-
-  describe "when email address is already taken" do
-    before do
-      user_with_same_email = @user.dup
-      user_with_same_email.email = @user.email.upcase
-      user_with_same_email.save
-    end
-
-    it { should_not be_valid }
-  end
-
-  describe "email address with mixed case" do
-    let(:mixed_case_email) { "Foo@ExAMPle.CoM" }
-
-    it "should be saved as all lower-case" do
-      @user.email = mixed_case_email
-      @user.save
-      @user.reload.email.should == mixed_case_email.downcase
-    end
-  end
-
-  describe "when password is not present" do
-    before { @user.password = @user.password_confirmation = " " }
-    it { should_not be_valid }
-  end
-
-  describe "when password doesn't match confirmation" do
-    before { @user.password_confirmation = "mismatch" }
-    it { should_not be_valid }
-  end
-
-  describe "when password confirmation is nil" do
-    before { @user.password_confirmation = nil }
-    it { should_not be_valid }
-  end
-
-  describe "with a password that's too short" do
-    before { @user.password = @user.password_confirmation = "a" * 5 }
-    it { should be_invalid }
-  end
-
-  describe "return value of authenticate method" do
-    before { @user.save }
-    let(:found_user) { User.find_by_email(@user.email) }
-
-    describe "with valid password" do
-      it { should == found_user.authenticate(@user.password) }
-    end
-
-    describe "with invalid password" do
-      let(:user_for_invalid_password) { found_user.authenticate("invalid") }
-
-      it { should_not == user_for_invalid_password }
-      specify { user_for_invalid_password.should be_false }
-    end
-  end
-
-  describe "remember token" do
-    before { @user.save }
-    its(:remember_token) { should_not be_blank }
-  end
-
-
-  describe "micropost associations" do
-
-    before { @user.save }
-    let!(:older_micropost) do 
-      FactoryGirl.create(:micropost, user: @user, created_at: 1.day.ago)
-    end
-    let!(:newer_micropost) do
-      FactoryGirl.create(:micropost, user: @user, created_at: 1.hour.ago)
-    end
-
-    it "should have the right microposts in the right order" do
-      @user.microposts.should == [newer_micropost, older_micropost]
-    end
-  
-    it "should destroy associated microposts" do
-      microposts = @user.microposts
-      @user.destroy
-      microposts.each do |micropost|
-        Micropost.find_by_id(micropost.id).should be_nil
-      end
-    end
-  
-    describe "status" do
-      let(:unfollowed_post) do
-        FactoryGirl.create(:micropost, user: FactoryGirl.create(:user))
-      end
-
-      let(:followed_user) { FactoryGirl.create(:user) }
-
-      before do
-        @user.follow!(followed_user)
-        3.times { followed_user.microposts.create!(content: "Lorem ipsum") }
-      end
-
-      its(:feed) { should include(newer_micropost) }
-      its(:feed) { should include(older_micropost) }
-      its(:feed) { should_not include(unfollowed_post) }
-      its(:feed) do
-        followed_user.microposts.each do |micropost|
-          should include(micropost)
-        end
-      end
-    end
-  end
-
-  describe "following" do
-    let(:other_user) { FactoryGirl.create(:user) }    
-    before do
-      @user.save
-      @user.follow!(other_user)
-    end
-
-    it { should be_following(other_user) }
-    its(:followed_users) { should include(other_user) }
-
-    describe "followed user" do
-      subject { other_user }
-      its(:followers) { should include(@user) }
-    end
-
-    describe "and unfollowing" do
-      before { @user.unfollow!(other_user) }
-
-      it { should_not be_following(other_user) }
-      its(:followed_users) { should_not include(other_user) }
-    end
-  end
-end
\ No newline at end of file
diff --git a/spec/requests/micropost_pages_spec.rb b/spec/requests/micropost_pages_spec.rb
deleted file mode 100644
index 7e66b1960..000000000
--- a/spec/requests/micropost_pages_spec.rb
+++ /dev/null
@@ -1,45 +0,0 @@
-require 'spec_helper'
-
-describe "Micropost pages" do
-
-  subject { page }
-
-  let(:user) { FactoryGirl.create(:user) }
-  before { sign_in user }
-
-  describe "micropost creation" do
-    before { visit root_path }
-
-    describe "with invalid information" do
-
-      it "should not create a micropost" do
-        expect { click_button "Post" }.not_to change(Micropost, :count)
-      end
-
-      describe "error messages" do
-        before { click_button "Post" }
-        it { should have_content('error') } 
-      end
-    end
-
-    describe "with valid information" do
-
-      before { fill_in 'micropost_content', with: "Lorem ipsum" }
-      it "should create a micropost" do
-        expect { click_button "Post" }.to change(Micropost, :count).by(1)
-      end
-    end
-  end
-  
-  describe "micropost destruction" do
-    before { FactoryGirl.create(:micropost, user: user) }
-
-    describe "as correct user" do
-      before { visit root_path }
-
-      it "should delete a micropost" do
-        expect { click_link "delete" }.to change(Micropost, :count).by(-1)
-      end
-    end
-  end
-end
\ No newline at end of file
diff --git a/spec/requests/static_pages_spec.rb b/spec/requests/static_pages_spec.rb
index c68281b19..560ed3fbf 100644
--- a/spec/requests/static_pages_spec.rb
+++ b/spec/requests/static_pages_spec.rb
@@ -14,28 +14,9 @@ describe "Static pages" do
     describe "for signed-in users" do
       let(:user) { FactoryGirl.create(:user) }
       before do
-        FactoryGirl.create(:micropost, user: user, content: "Lorem ipsum")
-        FactoryGirl.create(:micropost, user: user, content: "Dolor sit amet")
         sign_in user
         visit root_path
       end
-
-      it "should render the user's feed" do
-        user.feed.each do |item|
-          page.should have_selector("li##{item.id}", text: item.content)
-        end
-      end
-
-      describe "follower/following counts" do
-        let(:other_user) { FactoryGirl.create(:user) }
-        before do
-          other_user.follow!(user)
-          visit root_path
-        end
-
-        it { should have_link("0 following", href: following_user_path(user)) }
-        it { should have_link("1 followers", href: followers_user_path(user)) }
-      end
     end
   end
 
@@ -74,4 +55,4 @@ describe "Static pages" do
     click_link "sample app"
     page.should have_selector 'h1', text: 'Sample App'
   end
-end
\ No newline at end of file
+end
diff --git a/spec/requests/user_pages_spec.rb b/spec/requests/user_pages_spec.rb
index 62e441c84..e591dd982 100644
--- a/spec/requests/user_pages_spec.rb
+++ b/spec/requests/user_pages_spec.rb
@@ -84,65 +84,6 @@ describe "User pages" do
 
     it { should have_selector('h1',    text: user.name) }
     it { should have_selector('title', text: user.name) }
-
-    describe "microposts" do
-      it { should have_content(m1.content) }
-      it { should have_content(m2.content) }
-      it { should have_content(user.microposts.count) }
-    end
-
-    it { should have_selector('h1',    text: user.name) }
-    it { should have_selector('title', text: user.name) }
-
-    describe "follow/unfollow buttons" do
-      let(:other_user) { FactoryGirl.create(:user) }
-      before { sign_in user }
-
-      describe "following a user" do
-        before { visit user_path(other_user) }
-
-        it "should increment the followed user count" do
-          expect do
-            click_button "Follow"
-          end.to change(user.followed_users, :count).by(1)
-        end
-
-        it "should increment the other user's followers count" do
-          expect do
-            click_button "Follow"
-          end.to change(other_user.followers, :count).by(1)
-        end
-
-        describe "toggling the button" do
-          before { click_button "Follow" }
-          it { should have_selector('input', value: 'Unfollow') }
-        end
-      end
-
-      describe "unfollowing a user" do
-        before do
-          user.follow!(other_user)
-          visit user_path(other_user)
-        end
-
-        it "should decrement the followed user count" do
-          expect do
-            click_button "Unfollow"
-          end.to change(user.followed_users, :count).by(-1)
-        end
-
-        it "should decrement the other user's followers count" do
-          expect do
-            click_button "Unfollow"
-          end.to change(other_user.followers, :count).by(-1)
-        end
-
-        describe "toggling the button" do
-          before { click_button "Unfollow" }
-          it { should have_selector('input', value: 'Follow') }
-        end
-      end
-    end
   end
 
   describe "signup page" do
@@ -232,32 +173,4 @@ describe "User pages" do
       specify { user.reload.email.should == new_email }
     end
   end
-
-  describe "following/followers" do
-    let(:user) { FactoryGirl.create(:user) }
-    let(:other_user) { FactoryGirl.create(:user) }
-    before { user.follow!(other_user) }
-
-    describe "followed users" do
-      before do
-        sign_in user
-        visit following_user_path(user)
-      end
-
-      it { should have_selector('title', text: full_title('Following')) }
-      it { should have_selector('h3', text: 'Following') }
-      it { should have_link(other_user.name, href: user_path(other_user)) }
-    end
-
-    describe "followers" do
-      before do
-        sign_in other_user
-        visit followers_user_path(other_user)
-      end
-
-      it { should have_selector('title', text: full_title('Followers')) }
-      it { should have_selector('h3', text: 'Followers') }
-      it { should have_link(user.name, href: user_path(user)) }
-    end
-  end
-end
\ No newline at end of file
+end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index d04e2a0f5..ce9db47b9 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -3,6 +3,14 @@ require 'spork'
 #uncomment the following line to use spork with the debugger
 #require 'spork/ext/ruby-debug'
 
+require 'active_record'
+require 'jam_db'
+require 'spec_db'
+
+# recreate test database and migrate it
+db_config = YAML::load(File.open('config/database.yml'))["test"]
+SpecDb::recreate_database(db_config)
+
 Spork.prefork do
   # Loading more in this block will cause your tests to run faster. However,
   # if you change any configuration or code from libraries loaded here, you'll