1error:2 … while evaluating the attribute 'optionalValue.value'3 at «https://releases.nixos.org/nixpkgs/nixpkgs-26.11pre1056542.f4b6996c4e8b/nixexprs.tar.xz?narHash=sha256-tkD1h/1jLJ6qZHjG7/TOZT1qqI1ej3VPPCufHQyv1Uo%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-26.11pre1056542.f4b6996c4e8b/nixexprs.tar.xz?narHash=sha256-tkD1h/1jLJ6qZHjG7/TOZT1qqI1ej3VPPCufHQyv1Uo%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/wbbpmyv387xqysv79nz6cp85k7bflyz4-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'