Made some progress

db/migrate/20160221003140_create_users.rb

@@ -0,0 +1,12 @@
+class CreateUsers < ActiveRecord::Migration
+  def change
+    create_table :users do |t|
+      t.string :email, null: false, default: ''
+      t.integer :account_id, null: false
+
+      t.timestamps null: false
+    end
+
+    add_index :users, :email, unique: true
+  end
+end

db/migrate/20160221003621_create_follows.rb

@@ -0,0 +1,12 @@
+class CreateFollows < ActiveRecord::Migration
+  def change
+    create_table :follows do |t|
+      t.integer :account_id, null: false
+      t.integer :target_account_id, null: false
+
+      t.timestamps null: false
+    end
+
+    add_index :follows, [:account_id, :target_account_id], unique: true
+  end
+end

db/migrate/20160222122600_create_stream_entries.rb

@@ -0,0 +1,11 @@
+class CreateStreamEntries < ActiveRecord::Migration
+  def change
+    create_table :stream_entries do |t|
+      t.integer :account_id
+      t.integer :activity_id
+      t.string :activity_type
+
+      t.timestamps null: false
+    end
+  end
+end

db/migrate/20160222143943_add_profile_fields_to_accounts.rb

@@ -0,0 +1,7 @@
+class AddProfileFieldsToAccounts < ActiveRecord::Migration
+  def change
+    add_column :accounts, :note, :text, null: false, default: ''
+    add_column :accounts, :display_name, :string, null: false, default: ''
+    add_column :accounts, :uri, :string, null: false, default: ''
+  end
+end