Building DCAloop, an automated Bitcoin DCA app

This article details the creation of DCAloop, a Ruby on Rails application for automating Bitcoin Dollar-Cost Averaging (DCA) on Binance. It evolved from a personal script into a full app that lets users connect a restricted API key, set buy amounts and schedules, and optionally auto-sell at a profit target. The author emphasizes disciplined execution over manual trading, tracking fills, fees, and order history to remove emotional decision-making. Engineering challenges include handling exchange filters, rounding, idempotency, and order reconciliation. The article focuses on tech implementation and is relevant to IT/technology, specifically software development and cryptocurrency automation.