Building a Feature Flags API from Scratch with FastAPI

Building a Feature Flags API from Scratch with FastAPI Feature flags are one of those tools that seem simple until you implement them. I recently built FlagBit , a feature flags API, and wanted to share the interesting technical decisions. Why Another Feature Flags Service? The market is polarized: LaunchDarkly ($10/seat/mo) for enterprises, Unleash (self-hosted) for teams with DevOps capacity. Nothing in between for small teams that want a hosted API without per-seat pricing. The Core: Flag Eva