Why isn't there an official / built-in way to find what package provides a specific executable?

[abathur]

It also sounds like there are some flake-compatibility issues with that approach: `command-not-found` flake support by RyanGibb · Pull Request #187894 · NixOS/nixpkgs · GitHub. Some other issues with useful detail:

• command-not-found: rewrite in Rust by Mic92 · Pull Request #88517 · NixOS/nixpkgs · GitHub
• Replace `command-not-found' with nix-index · Issue #39789 · NixOS/nixpkgs · GitHub