Nix Survival Mode: macOS upgrades won't break Nix anymore when you install Nix using the Determinate Nix Installer

This is great. Nix maintainers already decided to help the DS installer get closer to official, and we’re still ready help with getting PRs in that direction merged. Following the NixCon discussion on establishing process to make projects official, a reasonable first step would be to have the repo or a fork in nix-community, where experimental features are disabled and telemetry is removed. (I think we should loosen the requirement to fix up the Bash installer, in hindsight it sounds unreasonably expensive and pointless.)

We all care about usage statistics, but they should be public. Exposing traffic data on the official domains and the cache more systematically would help many people in the ecosystem. @zimbatm what’s the state of affairs on metrics in the infra team? Is there something specific people could help out with?