AVavlcodemonkey·Sep 2, 2026
If you're working with C#, Microsoft added first class support for feature management in .Net with https://github.com/microsoft/featuremanagement-dotnet. It provides the logic for simple on/off, user targeting, percentage roll outs, and schedules. Using feature management along with flags hardcoded in `appSettings.json` makes perfect sense for a simpler application.
When your architecture grows and you start needing to synchronize configuration across multiple applications, or have non-technical users change flags, then you've probably outgrown hardcoding and need to consider building (or buying) a service. You probably don't want product owners trying to set an env var like `FeatureManagement__NewFeature__EnabledFor__0__Name`. Azure App Configuration is the go to if you're willing to use Azure - it provides a nice UI for editing flags in
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stead of dealing with JSON. Or, I've been building https://featureflags.app/ as an alternative provider if you prefer to steer clear of Azure. Its kinda the middle ground between hard coding and a full on platform like LaunchDarkly.