Console Do Not Track (DNT) A proposed unified standard for opting out of telemetry for TUI/console apps. Gatsby has GATSBY_TELEMETRY_DISABLED. Homebrew has HOMEBREW_NO_ANALYTICS. Syncthing has STNOUPGRADE, a config file setting for disabling crash reporting, and a GUI prompt for usage reporting. Google Cloud SDK CLI tools has gcloud config set disable_usage_reporting true. .NET Core has DOTNET_CLI