Sure. To start with, we see flakes as stable as they are today: https://determinate.systems/posts/experimental-does-not-mean.... The ecosystem has broadly adopted flakes as their preferred way to use Nix, and we're standing by them and are committing to not breaking their flakes in the future.

On Monday, we launched Determinate Nix to help make this promise more real: https://determinate.systems/posts/announcing-determinate-nix.... Note: Determinate Nix is not a fork, it is a downstream. Our plan, and intent, is to keep all our patches sent to the upstream project first.