1error:2 … in the right operand of the update (//) operator3 at «github:NixOS/nixpkgs/767b0d3ec98a143ad9ed7dfc0d5553510ac27133?narHash=sha256-tzMgSkV7kljEkqIjlgV6F%2Bn%2BxD%2B/a35Db8bs7a4BFAo%3D»/lib/attrsets.nix:1628:52:4 1627| # The invariant is satisfied because each half will have at least 1 element5 1628| binaryMerge start ((start + end) / 2) // binaryMerge ((start + end) / 2) end;6 | ^7 1629| in89 … in the right operand of the update (//) operator10 at «github:NixOS/nixpkgs/767b0d3ec98a143ad9ed7dfc0d5553510ac27133?narHash=sha256-tzMgSkV7kljEkqIjlgV6F%2Bn%2BxD%2B/a35Db8bs7a4BFAo%3D»/lib/attrsets.nix:1628:52:11 1627| # The invariant is satisfied because each half will have at least 1 element12 1628| binaryMerge start ((start + end) / 2) // binaryMerge ((start + end) / 2) end;13 | ^14 1629| in1516 … in the right operand of the update (//) operator17 at «github:NixOS/nixpkgs/767b0d3ec98a143ad9ed7dfc0d5553510ac27133?narHash=sha256-tzMgSkV7kljEkqIjlgV6F%2Bn%2BxD%2B/a35Db8bs7a4BFAo%3D»/lib/attrsets.nix:1628:52:18 1627| # The invariant is satisfied because each half will have at least 1 element19 1628| binaryMerge start ((start + end) / 2) // binaryMerge ((start + end) / 2) end;20 | ^21 1629| in2223 … while calling the 'elemAt' builtin24 at «github:NixOS/nixpkgs/767b0d3ec98a143ad9ed7dfc0d5553510ac27133?narHash=sha256-tzMgSkV7kljEkqIjlgV6F%2Bn%2BxD%2B/a35Db8bs7a4BFAo%3D»/lib/attrsets.nix:1623:11:25 1622| # which case we just return it directly26 1623| elemAt list start27 | ^28 1624| else2930 (stack trace truncated; use '--show-trace' to show the full, detailed trace)3132 error: Nixpkgs 26.11 has dropped support for x86_64-darwin.3334 The 26.05 stable branch still supports x86_64-darwin, and will35 receive security fixes until the end of 2026. If you use channels,36 you can switch to 26.05 as follows:3738 $ sudo nix-channel --add https://nixos.org/channels/nixpkgs-26.05-darwin nixpkgs39 $ sudo nix-channel --update4041 If this doesn’t work, you may need to run:4243 # Lack of sudo is deliberate:44 $ nix-channel --remove nixpkgs4546 If you use flakes, switch your flake input:4748 inputs.nixpkgs = {49 url = "github:NixOS/nixpkgs/nixpkgs-26.05-darwin";50 };5152 See the release notes for more information and alternatives:5354 https://nixos.org/manual/nixpkgs/unstable/release-notes#x86_64-darwin-26.11