Flipping the Question: From 'Is It Too Wet?' to 'Is It Too Dry?'

This article describes how the author reused a moisture-scoring engine (Groundwise) from a trail riding app to build Yardwise, a garden watering assistant, by inverting the verdict logic.

• •An EngineMode enum flips the wetness score interpretation: low wetness triggers 'water today' in dryness mode vs. 'go ride' in wetness mode.
• •Yardwise logs manual watering events as precipitation equivalents with 72-hour time-weighted decay (70%/20%/10%).
• •Cold weather extends the watering memory window from 48 to up to 96 hours via a coldFactor tied to evapotranspiration.
• •An establishment sensitivity boost (+0.5 for newly seeded lawns) overrides borderline 'Maybe' verdicts to 'Yes: water.'
• •Surface types include potting mix (2.0x drying rate) and mulched soil (0.7x), tuned to real garden behavior.