1error: Nixpkgs 26.11 has dropped support for x86_64-darwin.23The 26.05 stable branch still supports x86_64-darwin, and will4receive security fixes until the end of 2026. If you use channels,5you can switch to 26.05 as follows:67 $ sudo nix-channel --add https://nixos.org/channels/nixpkgs-26.05-darwin nixpkgs8 $ sudo nix-channel --update910If this doesn’t work, you may need to run:1112 # Lack of sudo is deliberate:13 $ nix-channel --remove nixpkgs1415If you use flakes, switch your flake input:1617 inputs.nixpkgs = {18 url = "github:NixOS/nixpkgs/nixpkgs-26.05-darwin";19 };2021See the release notes for more information and alternatives:2223 https://nixos.org/manual/nixpkgs/unstable/release-notes#x86_64-darwin-26.112425 at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/trivial.nix:1003:3726 … while calling the 'throw' builtin at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/trivial.nix:1003:3727 … while calling anonymous lambda at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/trivial.nix:1003:1928 … from call site at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/pkgs/top-level/default.nix:113:929 … while calling anonymous lambda at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/trivial.nix:982:4030 … from call site at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/pkgs/top-level/default.nix:108:631 … while calling anonymous lambda at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/pkgs/top-level/default.nix:21:132 … from call site at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/pkgs/top-level/impure.nix:55:133 … while calling anonymous lambda at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/pkgs/top-level/impure.nix:12:134 … from call site at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/flake.nix:234:1235 … while calling anonymous lambda at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/flake.nix:233:1136 … from call site at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1343:1737 … while evaluating the attribute 'legacyPackages.x86_64-darwin' at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1343:938 … while calling anonymous lambda at /nix/store/0j8v7y6i81c0g1gjqp37qy05225k4ags-source/lib/default.nix:155:1339 … while evaluating the attribute 'nixpkgs'40 … while calling anonymous lambda at /nix/store/0j8v7y6i81c0g1gjqp37qy05225k4ags-source/lib/default.nix:155:1341 … while evaluating the attribute 'self.godoc' at «call-flake»:71:4442 … while calling anonymous lambda at /nix/store/8j91fdd82rvsx7bllwxf349fx6kbxck3-source/nix/package.nix:1:143 … from call site at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/customisation.nix:161:2044 … while calling the '__isAttrs' builtin at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/customisation.nix:175:1245 … while calling 'f'' at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/customisation.nix:159:946 … from call site at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/customisation.nix:323:747 … while calling anonymous lambda at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/customisation.nix:308:1948 … from call site at /nix/store/0j8v7y6i81c0g1gjqp37qy05225k4ags-source/lib/default.nix:590:3749 … while calling anonymous lambda at /nix/store/0j8v7y6i81c0g1gjqp37qy05225k4ags-source/lib/default.nix:590:2250 … while evaluating the attribute 'default' at /nix/store/0j8v7y6i81c0g1gjqp37qy05225k4ags-source/lib/default.nix:548:1151 … while calling anonymous lambda at /nix/store/0j8v7y6i81c0g1gjqp37qy05225k4ags-source/lib/default.nix:163:1052 … from call site at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:667:6053 … while calling anonymous lambda at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:667:5354 … from call site at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:667:4555 … while calling the '__filter' builtin at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:667:4556 … while calling the 'removeAttrs' builtin at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:667:2857 … while calling anonymous lambda at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:667:2358 … from call site at /nix/store/0j8v7y6i81c0g1gjqp37qy05225k4ags-source/lib/default.nix:162:559 … while calling anonymous lambda at /nix/store/0j8v7y6i81c0g1gjqp37qy05225k4ags-source/lib/default.nix:161:1360 … while evaluating the attribute 'self.packages.x86_64-darwin' at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1343:961 … while calling the 'removeAttrs' builtin at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:667:2862 … while calling anonymous lambda at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:667:2363 … from call site at /nix/store/0j8v7y6i81c0g1gjqp37qy05225k4ags-source/lib/default.nix:162:564 … while calling anonymous lambda at /nix/store/0j8v7y6i81c0g1gjqp37qy05225k4ags-source/lib/default.nix:161:1365 … from call site at /nix/store/0j8v7y6i81c0g1gjqp37qy05225k4ags-source/lib/default.nix:743:1866 … while calling the '__mapAttrs' builtin at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1079:4267 … while calling the '__attrValues' builtin at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1079:3068 … while calling anonymous lambda at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1079:2369 … from call site at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:377:3370 … while calling the '__length' builtin at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/lists.nix:1142:1971 … while calling the '__genList' builtin at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/lists.nix:1144:572 … while calling 'reverseList' at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/lists.nix:1139:573 … from call site at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:377:2074 … while calling the '__concatLists' builtin at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:377:775 … while calling the '__listToAttrs' builtin at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:376:576 … while calling anonymous lambda at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:375:877 … from call site at /nix/store/0j8v7y6i81c0g1gjqp37qy05225k4ags-source/lib/default.nix:733:1578 … while calling the '__mapAttrs' builtin at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1079:4279 … while calling the '__attrValues' builtin at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1079:3080 … while calling anonymous lambda at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1079:2381 … from call site at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1045:3682 … while calling the '__listToAttrs' builtin at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1045:2383 … while calling anonymous lambda at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1045:1884 … from call site at /nix/store/0j8v7y6i81c0g1gjqp37qy05225k4ags-source/lib/default.nix:732:1485 … while calling the '__elemAt' builtin at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1615:1186 … while calling anonymous lambda at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1610:1687 … from call site at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1620:1188 … while calling anonymous lambda at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1610:1689 … from call site at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1620:1190 … while calling anonymous lambda at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1610:1691 … from call site at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1626:792 … while calling 'mergeAttrsList' at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1605:593 … from call site at /nix/store/0j8v7y6i81c0g1gjqp37qy05225k4ags-source/lib/default.nix:729:994 … while calling anonymous lambda at /nix/store/0j8v7y6i81c0g1gjqp37qy05225k4ags-source/lib/default.nix:728:995 … from call site at /nix/store/0j8v7y6i81c0g1gjqp37qy05225k4ags-source/lib/default.nix:63:5396 … while calling anonymous lambda at /nix/store/0j8v7y6i81c0g1gjqp37qy05225k4ags-source/lib/default.nix:63:4597 … from call site at /nix/store/fd5qgysvbfx27wj651swlr899w6jnbwd-source/lib/attrsets.nix:1343:1798 … while calling the '__isAttrs' builtin at «string»:25:999 … while calling 'prune' at «string»:24:5