#155
B+
Rank #55
Flagsmith
Open-source feature flag and remote config management platform with SDKs for most major languages. Ships a full self-hosted stack (API, dashboard, Postgres) as an alternative to LaunchDarkly.
76.0
/ 100
⚙ Full Stack
Django/DRF API backend with Postgres as the system of record, a React dashboard, and optional Redis for caching flag evaluations. SDK-evaluated flags mean the client never holds secrets, only public environment keys.
📈 Scaling Analysis
The API layer is stateless and can run multiple replicas behind a load balancer since all state lives in Postgres/Redis, so it scales horizontally well for read-heavy flag evaluation traffic. The main bottleneck is Postgres write throughput on flag/segment updates at very high tenant counts, which requires the usual read-replica and connection-pooling mitigations rather than any redesign.
🚀 Running on Nexlayer
Deploy as an api pod (Django+Gunicorn) plus a postgres pod and optional redis pod; the dashboard can be a static frontend pod. Point the API's DB URL at postgres.pod:5432 and Redis at redis.pod:6379, and mirror the official Docker Hub image via mirror.gcr.io. Watch for the SECRET_KEY and DJANGO_ALLOWED_HOSTS env vars, which must be set explicitly for the platform's public URL.