A/B Testing vs. Feature Flags: They're Not the Same Tool
Feature flags and A/B tests share infrastructure but answer different questions. A guide to telling them apart before your rollout data lies to you.
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JA
Industry & Explainers
Jess A.
Jess covers where the industry is heading and why, maturity curves, build-vs-buy debates, and the patterns teams actually adopt once the hype fades.
7 posts from Jess A.
How to Add Dark Mode to Your App the Right Way
A practical guide to adding dark mode: semantic color tokens, respecting OS preferences, avoiding the flash of wrong theme, and rolling it out to real users without a big-bang launch.
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Updated
How to Add a Referral Program That Actually Drives Growth
A build guide for adding a referral program to your product: the data model, fraud-resistant attribution, reward mechanics, and how to test whether it moves the needle before rolling it out to everyone.
Read article →How to Add Passwordless (Magic Link) Login to Your App
A guide to adding magic-link and passwordless authentication: token design, expiry and single-use, rate limiting, the security tradeoffs, and migrating existing users without locking anyone out.
Read article →How to Add Undo to Any Destructive Action
A design and engineering guide to adding undo: the deferred-delete pattern that beats confirmation dialogs, soft deletes, undo stacks, and shipping it so users trust your product more.
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Updated
The 6 Levels of Feature Flag Maturity (And Why Most Startups Get Stuck at Level 3)
From cowboy push-to-prod to a real flag system, a brutally honest map of how engineering teams actually evolve their release strategy, and how to know which level you should be at.
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Updated
Why Feature Flags Are the Secret to Shipping Faster
Feature flags split deployment from release. Here is what that buys a team that ships daily, and where the practice starts to cost you.
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