I'm trying to create the best A/B test sample size & duration calculator: https://calculator.osc.garden/ https://calculator.osc.garden/ It's free (https://gith

I'm trying to create the best A/B test sample size & duration calculator: https://calculator.osc.garden/ https://calculator.osc.garden/ It's free (https://github.com/welpo/ab-test-calculator https://github.com/welpo/ab-test-calculator), and it has no dependencies (vanilla JS + HTML + CSS). Right now it only supports binary outcomes. Even with the current limitations, I feel it's way above many/most online calculators/planners.