If you write code against AWS, you've probably hit one of these in the last year: LocalStack Community Edition sunset in March 2026. Auth tokens, frozen security updates, paid tiers for the things that used to be free. Spinning up real AWS for local dev or CI is slow, expensive, and risky . Mock libraries lie to you until production day. I started Floci to fix this. It's a single Docker image, MIT-licensed, no account, no telemetry, no feature gates. Pull and go. TL;DR: docker run -p 4566:4566 floci/floci:latest and you have 40+ AWS services on http://localhost:4566 . Same port and SDK calls as LocalStack. Switch by changing one env var. 🔗 GitHub: github.com/floci-io/floci 🔗 Docs: floci.io/floci Why I built it I was tired of three things: Hidden costs. Free emulators that "encourage" you toward a paid tier the moment your team grows past 1. Slow startup. Booting an emulator that takes 3+ seconds for every CI job multiplies into hours of waste per week. Mock-only fidelity.…