I Built an Autonomous Crypto Trading Bot That Runs 24/7 on My Mac for $0/Month

Most crypto trading bot tutorials assume you have a cloud server, Docker, and a monthly bill. I built one that runs as a native macOS daemon. Zero cloud. Zero cost. It fires every 5 minutes, checks momentum signals, executes on Kraken, and pings me on Telegram within seconds of every trade. Here's the architecture. The Stack Execution: Kraken API (low fees, solid liquidity for SOL/BTC) Strategy: Momentum — buys when price crosses above 20-period SMA, exits on 5% stop-loss or 10% take-profit Runtime: launchd daemon (auto-starts on boot, auto-restarts on crash) Secrets: macOS Keychain — 27 API keys, zero hardcoded credentials Alerts: Telegram bot — instant notification on every trade, stop-loss trigger, and 5%+ market move Why Local Beats Cloud Every millisecond matters in trading. Cloud servers add: Network latency to your exchange Monthly hosting bills ($20-100/month) A single point of failure at 3am during a flash crash launchd on macOS gives you: Process supervision (auto-restart on