Capabilities aside, if you're reproducible and source-based, you're gonna survive binary artifact repository outages a lot better than if you're not.
If there were a comparable culling of the Nixpkgs binary cache, pipelines relying on Nix for their packages would be affected in a much less invasive way: they'd see Nix silently fall back to upstream sources, and reproducibly build from source, wherever the caches binary artifacts became unavailable.
If there were a comparable culling of the Nixpkgs binary cache, pipelines relying on Nix for their packages would be affected in a much less invasive way: they'd see Nix silently fall back to upstream sources, and reproducibly build from source, wherever the caches binary artifacts became unavailable.