1error:2 … in the left operand of the update (//) operator3 at /var/lib/nixbot/worktrees/71-e471fd3f10b2-3a20a002/flake.nix:109:9:4 108| system:5 109| lib.mapAttrs' (name: pkg: lib.nameValuePair "pkgs-${name}" pkg) packages.${system}6 | ^7 110| // lib.genAttrs checkNames (89 … while calling the 'listToAttrs' builtin10 at «github:NixOS/nixpkgs/716c7a2664ca8325617b8a7fbb609273f2c4cae7?narHash=sha256-zbcZ1dmBTPfJ7Mlqh/yLEPGpgJnwuv4Xr1xucy2WqMA%3D»/lib/attrsets.nix:1055:23:11 1054| */12 1055| mapAttrs' = f: set: listToAttrs (mapAttrsToList f set);13 | ^14 1056|1516 (stack trace truncated; use '--show-trace' to show the full, detailed trace)1718 error: Nixpkgs 26.11 has dropped support for x86_64-darwin.1920 The 26.05 stable branch still supports x86_64-darwin, and will21 receive security fixes until the end of 2026. If you use channels,22 you can switch to 26.05 as follows:2324 $ sudo nix-channel --add https://nixos.org/channels/nixpkgs-26.05-darwin nixpkgs25 $ sudo nix-channel --update2627 If this doesn’t work, you may need to run:2829 # Lack of sudo is deliberate:30 $ nix-channel --remove nixpkgs3132 If you use flakes, switch your flake input:3334 inputs.nixpkgs = {35 url = "github:NixOS/nixpkgs/nixpkgs-26.05-darwin";36 };3738 See the release notes for more information and alternatives:3940 https://nixos.org/manual/nixpkgs/unstable/release-notes#x86_64-darwin-26.11