error:
       … while evaluating a branch condition
         at «string»:25:5:
           24|     v:
           25|     if !builtins.isAttrs v || isDrv v then
             |     ^
           26|       v

       … in the left operand of the OR (||) operator
         at «string»:25:28:
           24|     v:
           25|     if !builtins.isAttrs v || isDrv v then
             |                            ^
           26|       v

       … while evaluating definitions from `/nix/store/6xr58mfvs42ixw6428x3vm9l5h88l2z7-source/modules/transposition.nix':

       … while evaluating definitions from `/nix/store/0s8rx2xs97qamg6c4mz1cfy2ffflpp19-source/modules/checks/machines.nix, via option perSystem':

       … while evaluating the option `system.activationScripts.etc.text':

       … while evaluating definitions from `/nix/store/haxwkzgll0k0l2vbhqwxahv25y4d09c7-source/nixos/modules/system/etc/etc-activation.nix':

       … while evaluating definitions from `/nix/store/haxwkzgll0k0l2vbhqwxahv25y4d09c7-source/nixos/modules/system/etc/etc.nix':

       … while evaluating the option `home-manager.users.cameron.home.packages':

       … while evaluating definitions from `/nix/store/0s8rx2xs97qamg6c4mz1cfy2ffflpp19-source/modules/home/publishing/tools.nix, via option flake.modules.homeManager.publishing':

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

       error: 'svg2pdf' has been removed as it was unmaintained upstream. Consider using python3Packages.svglib instead.