tl;dr: Floci is a set of MIT-licensed native binaries that locally emulate AWS (119 services), Azure (28), GCP (25), and OCI (8), positioning itself as a faster, credential-free alternative to LocalStack (which reportedly began requiring auth tokens in March 2026). It boasts 24ms startup and 13 MiB idle memory using GraalVM Mandrel, runs real engines (Docker-based Lambda, actual PostgreSQL/MySQL for RDS, real Redis), and offers a unified CLI and dashboard. It's pitched particularly at AI coding agents that need a safe sandbox to iterate against without touching real cloud accounts.