Happy Brexit EA is an Expert Advisor by Happy Forex for MetaTrader 4 and MetaTrader 5. It trades one pair, EURGBP, on the H4 chart.
Happy Forex describes it as a system that looks for "big fish" moves: large price swings that it tries to catch while keeping drawdown low. It places its buy and sell orders spaced out in time rather than all at once.
Version 1.1 changed how the EA reads the economic calendar: it now loads it over WebRequest, so you allow the calendar address from Happy Forex's setup guide in MetaTrader.