STAGING IS A WASTEFUL LIE: THE CASE FOR THE MONO-ENVIRONMENT

Summary from the TLDR Dev newsletter

Traditional staging environments are wasteful, unreliable, and create a false sense of security. A "mono-environment" approach, where only production exists, moves safeguards from environmental isolation to logical isolation within the code, leading to faster delivery and tighter feedback loops. This is done through automated practices such as testing, ephemeral local environments, feature flagging, continuous deployment, and production monitoring.