Derek Brown has shared 1 tiny tool here, mostly around android, calculator, and energy. The tools span Kotlin.https://www.tinytooltown.com/en-ushttps://www.tinytooltown.com/tools/energy-calculator/https://www.tinytooltown.com/tools/energy-calculator/Android App to help you keep track of how much it costs to run your devices By Derek Brown (@cgsguy2) Language: Kotlin License: MIT GitHub: https://github.com/cgsguy2/energy-calculatorMon, 16 Feb 2026 00:00:00 GMTandroidenergycalculator