error:
       … while evaluating the attribute 'optionalValue.value'
         at «https://releases.nixos.org/nixpkgs/nixpkgs-26.05pre964972.9cf7092bdd60/nixexprs.tar.xz?narHash=sha256-SpvueJPdKD%2BU/Q2btT3e3rAYgbPQP6nbcYYfK3BJQDA%3D»/lib/modules.nix:1297:5:
         1296|
         1297|     optionalValue = if isDefined then { value = mergedValue; } else { };
             |     ^
         1298|   };

       … while evaluating a branch condition
         at «https://releases.nixos.org/nixpkgs/nixpkgs-26.05pre964972.9cf7092bdd60/nixexprs.tar.xz?narHash=sha256-SpvueJPdKD%2BU/Q2btT3e3rAYgbPQP6nbcYYfK3BJQDA%3D»/lib/modules.nix:1297:21:
         1296|
         1297|     optionalValue = if isDefined then { value = mergedValue; } else { };
             |                     ^
         1298|   };

       … while evaluating definitions from `/nix/store/hqh4dp94r41rk0k4b9b6v804nrlwmij8-source/modules/transposition.nix':

       … while evaluating definitions from `/nix/store/p3lsz04g67nqh1if2m1c4ci69w8h1yy4-source/tests/flake-module.nix, via option perSystem':

       (stack trace truncated; use '--show-trace' to show the full, detailed trace)

       error: Missing nix-unit tests for the following clan services on x86_64-linux:
         - pocket-id

       Every service in `clan.modules` must have a nix-unit test registered at
       `tests.systems.x86_64-linux.<moduleName>`. See services/wifi for an example.