Generally my aim with both Nix and Bazel are that, while they are the source of truth, day-to-day development and debugging occurs using language-native tools.

Generally my aim with both Nix and Bazel are that, while they are the source of truth, day-to-day development and debugging occurs using language-native tools. So the only touch point for local development is when you are modifying the dependency graph in some way. It's definitely more work (you need to maintain compatibility with two different build systems), but worth it for exactly these reasons.