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Floci: Locally emulating any cloud service

floci.io28 points5 comments
Screenshot of Floci: Locally emulating any cloud service

Floci is a suite of standalone, MIT-licensed local cloud emulators that let teams run AWS, Azure, GCP and OCI services on localhost without real accounts, credentials, or feature gates. Each emulator is a native binary (or Docker image) that exposes a single port (AWS on 4566 with 119 services, Azure on 4577 with 28 services, GCP on 4588 with 25 services, OCI on 4599 with 8 services), starts in milliseconds (24 ms cold start cited) and idles with small memory overhead (around 13 MiB). Emulators run real service engines where applicable (Lambda in Docker, RDS with Postgres/MySQL, ElastiCache as Redis) to provide protocol fidelity rather than mocks, and are usable with existing SDKs, CLIs, Terraform/OpenTofu, and test runners as drop-in replacements (notably presented as a LocalStack alternative).

The offering includes a unified CLI and a visual dashboard to start, inspect and manage emulators, plus quick-start install scripts for macOS/Linux/Windows. Intended use cases emphasize safe, fast inner-loop development and AI-assisted coding - agents can use throwaway keys against local clouds with zero blast radius - ephemeral CI test environments, offline local-first development, infrastructure-as-code dry runs, workshops and classrooms. The project is open source and free, requests sponsorship for sustainability, and highlights no auth tokens, no telemetry, and perpetual availability of all features.

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