1error:2 … while evaluating the attribute 'optionalValue.value'3 at «https://releases.nixos.org/nixpkgs/nixpkgs-26.11pre1062790.c27cdad491a9/nixexprs.tar.xz?narHash=sha256-4Opnii0iGg8Dk8/rZ2IYh/HCHvg1B%2BUs5%2BQg%2BQy5c18%3D»/lib/modules.nix:1312:5:4 1311|5 1312| optionalValue = if isDefined then { value = mergedValue; } else { };6 | ^7 1313| };89 … while evaluating a branch condition10 at «https://releases.nixos.org/nixpkgs/nixpkgs-26.11pre1062790.c27cdad491a9/nixexprs.tar.xz?narHash=sha256-4Opnii0iGg8Dk8/rZ2IYh/HCHvg1B%2BUs5%2BQg%2BQy5c18%3D»/lib/modules.nix:1312:21:11 1311|12 1312| optionalValue = if isDefined then { value = mergedValue; } else { };13 | ^14 1313| };1516 … while evaluating definitions from `/nix/store/izy8mzply2pyp44m4dfi6j23i1cxayvr-source/modules/clan/module.nix':1718 (stack trace truncated; use '--show-trace' to show the full, detailed trace)1920 error: Flake does not have 'input' named 'nixpkgs'