Blog
Tutorials, comparisons, and best practices for feature flags and progressive delivery.
A/B Testing for Product Engineers: The Day-to-Day Toolkit
Product engineers own experiments end-to-end now. The toolkit you reach for: a flag for exposure, a rollout for the ramp, and a readout you don't hand-assemble.
A/B Testing for Growth and Marketing Engineers Without a Data Team
Growth and marketing engineers test landing pages, onboarding, and pricing, usually solo with no experimentation platform. The lightweight toolkit that fits.
I Built a Feature Flag Platform as a Solo Developer — Here's What I Learned
Lessons from building ToggleTown solo: solve your own problem, why five SDKs was premature, over-engineered billing, why comparison pages should come first.
Feature Flags vs Environment Variables: When You Actually Need a Service
Environment variables cover simple on/off switches. Where they stop: runtime changes, targeting, rollouts, audit history. When a flag service earns its place.
Local Feature Flag Evaluation: Why Flag Checks Shouldn't Make Network Calls
How in-SDK (local) flag evaluation works, why it keeps your app running through a provider outage, and the trade-offs against streaming updates.
LaunchDarkly Went Down Again — Let's Talk About Feature Flag Reliability
When your flag provider goes down, control of your product goes with it. What the February 2026 LaunchDarkly outages teach about resilient flag systems.
Why Every Startup Needs Feature Flags — Even If You're Just 2 Engineers
Feature flags aren't for enterprises. They're for any team that wants to ship fast without fearing production. Here's why 2-person startups need them most.
Feature Flags in 5 Minutes with Node.js + ToggleTown
Go from zero to feature flags in under 5 minutes. Install the SDK, initialize the client, wrap your feature, and ship with confidence.
Why LaunchDarkly Costs Too Much for Startups
Per-seat pricing, sales-gated features, and minimum contracts make LaunchDarkly a poor fit for startups. Here's how the math breaks down.
Feature Flag Best Practices for Small Teams
Practical advice on naming conventions, flag cleanup, gradual rollouts, kill switches, and keeping your flag inventory under control.