Settings reloading (on change) if supported?

Short answer: JSON files support live reload: builder.Configuration.AddJsonFile("appsettings.json", optional: false, reloadOnChange: true); IOptionsMonitor<T> automatically updates bound values when config changes. 🔁 Does not work with all sources (e.g., env vars, command line).

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.