1error:2 … while evaluating the attribute 'optionalValue.value'3 at «https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.1011622%2Brev-a799d3e3886da994fa307f817a6bc705ae538eeb/019ea4be-9303-7001-8232-6b7ec45c4f5b/source.tar.gz?narHash=sha256-3av0pIjlOWQ6rDbNOmpUSvbNnJkGORQKKjb4LtCZsIY%3D»/lib/modules.nix:1332:5:4 1331|5 1332| optionalValue = if isDefined then { value = mergedValue; } else { };6 | ^7 1333| };89 … while evaluating a branch condition10 at «https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.1011622%2Brev-a799d3e3886da994fa307f817a6bc705ae538eeb/019ea4be-9303-7001-8232-6b7ec45c4f5b/source.tar.gz?narHash=sha256-3av0pIjlOWQ6rDbNOmpUSvbNnJkGORQKKjb4LtCZsIY%3D»/lib/modules.nix:1332:21:11 1331|12 1332| optionalValue = if isDefined then { value = mergedValue; } else { };13 | ^14 1333| };1516 … while evaluating definitions from `/nix/store/snwlqszc8y38mpk6mw13x6yn1cx8wrw5-source/builtinModules/packages.nix':1718 (stack trace truncated; use '--show-trace' to show the full, detailed trace)1920 error: attribute 'sdkroot' missing21 at «https://api.flakehub.com/f/pinned/NixOS/nixpkgs/0.1.1011622%2Brev-a799d3e3886da994fa307f817a6bc705ae538eeb/019ea4be-9303-7001-8232-6b7ec45c4f5b/source.tar.gz?narHash=sha256-3av0pIjlOWQ6rDbNOmpUSvbNnJkGORQKKjb4LtCZsIY%3D»/pkgs/stdenv/darwin/default.nix:373:30:22 372| CC=${bootstrapTools}/bin/clang23 373| export SDKROOT=${self.apple-sdk.sdkroot}24 | ^25 374| ''