HomeHacker News Show HN: Butterfly Coins – a side project to track random acts of kindness https://ift.tt/2AzSh3Y byHat hair -November 30, 2018 0 Show HN: Butterfly Coins – a side project to track random acts of kindness https://ift.tt/2FJSzv5 November 28, 2018 at 11:20PM Tags: Hacker News Facebook Twitter