gistfile1.rb

require "rubygems"
require "sequel"

DB = Sequel.sqlite("#{File.dirname(__FILE__)}/db/penguin.sqlite3") unless defined?(DB)

unless DB.table_exists?(:waitlists)
  DB.create_table :waitlists do
    column :email,      :text
    column :app,        :text
    column :created_at, :timestamp
  end
end

$dataset = DB[:waitlists] unless defined?($dataset)