Guides
In-depth guides for engineering teams
Step-by-step walkthroughs on SDK integration, gradual rollouts, A/B testing, kill switches, and keeping your flag inventory clean as the team scales.
Add feature flags to your stack
Implementation & SDKsHow to Implement Feature Flags in React & Next.js
A practical walkthrough for integrating the SignaKit React SDK into a Next.js app — covering SSR-safe flag evaluation, client/server component patterns, and percentage rollouts.
Feature Flags in Node.js: A Practical Guide
Server-side flag evaluation in Node.js and Express — initialization, user context, local caching, and graceful fallback when the flag service is unreachable.
Feature Flags in PHP: Complete Integration Guide
Step-by-step integration for PHP applications using the SignaKit PHP SDK — flag evaluation, targeting attributes, and clean flag removal after rollout.
Feature Flags & CI/CD: Trunk-Based Development Guide
How feature flags enable trunk-based development — shipping incomplete features safely, running parallel work, and keeping the main branch always deployable.
Ship with control and confidence
Deployment StrategiesA/B Testing with Feature Flags: The Complete Guide
Design, run, and analyze A/B experiments using feature flags — covering variant assignment, statistical significance, sample sizing, and knowing when to call a winner.
Canary Releases with Feature Flags: Step-by-Step
A step-by-step playbook for canary releases — gradual traffic shifting, health monitoring, rollback triggers, and promoting a canary to a full release.
Keep flags healthy at scale
Management & GovernanceFeature Flags Best Practices Checklist
A comprehensive checklist covering naming conventions, ownership, targeting rules, cleanup processes, and governance patterns for teams managing 20+ flags.
Feature Flag Technical Debt: Cleanup Guide
How to audit your flag inventory, identify stale flags safely, coordinate cleanup across teams, and build processes that prevent technical debt from accumulating.
Choose the right approach
Comparison & EvaluationOpen Source vs Managed Feature Flag Tools
An honest comparison of self-hosted open source options (Unleash, Flagsmith, GrowthBook) against managed services — covering ops burden, cost, scale, and when each makes sense.
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