In reply to @jtojnar:matrix.org
Sounds like environment inconsistency. Please clarify where is setzer coming from and what the dev environment is.

I'm using Nix flakes to access the application. My configuration looks something like this:

{
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.11";
  outputs = inputs@{ flake-parts, ... }:
  flake-parts.lib.mkFlake { inherit inputs; } {
   systems = [
     "x86_64-linux" "x86_64-darwin"
     "aarch64-linux" "aarch64-darwin"
    ];
    perSystem = { config, self', inputs', pkgs, system, ... }: {
      devShells.default = with pkgs; mkShell {
        buildInputs = [
          nodejs_20 setzer
          nodePackages.pnpm
          (pkgs.texlive.combine {
            inherit (pkgs.texlive)
            scheme-small enumitem nopageno
            pbox tokcycle censor multirow
            subfiles adjustbox ccicons
            chronosys colophon titlesec;
          })
        ];
      }; 
    };
  };
}

This was working fine on a Nix system, which is no longer accessible, as my main laptop is broken, but it won't work properly on a Guix system that I am currently using.

In reply to @jtojnar:matrix.org
That looks fine. Maybe the environment contamination comes from ambient environment then.

Here's the log:

$ setzer 

(process:29915): Gtk-WARNING **: 19:00:13.081: Locale not supported by C library.
	Using the fallback 'C' locale.
Fontconfig error: Cannot load default config file: No such file: (null)
Traceback (most recent call last):
  File "/nix/store/g6l9y20628gridb0g2kypvn2n4m5rdfd-setzer-62/bin/..setzer-wrapped-wrapped", line 28, in <module>
    from setzer.workspace.workspace import Workspace
  File "/nix/store/g6l9y20628gridb0g2kypvn2n4m5rdfd-setzer-62/lib/python3.11/site-packages/setzer/workspace/workspace.py", line 26, in <module>
    import setzer.document.preview.preview as preview
  File "/nix/store/g6l9y20628gridb0g2kypvn2n4m5rdfd-setzer-62/lib/python3.11/site-packages/setzer/document/preview/preview.py", line 31, in <module>
    import setzer.document.preview.preview_presenter as preview_presenter
  File "/nix/store/g6l9y20628gridb0g2kypvn2n4m5rdfd-setzer-62/lib/python3.11/site-packages/setzer/document/preview/preview_presenter.py", line 21, in <module>
    import cairo
  File "/nix/store/m69f7w3q03ihr9a34ajbm872k2na5xr8-python3.10-pycairo-1.24.0/lib/python3.10/site-packages/cairo/__init__.py", line 1, in <module>
    from ._cairo import *  # noqa: F401,F403
    ^^^^^^^^^^^^^^^^^^^^^
ModuleNotFoundError: No module named 'cairo._cairo'

In reply to @jtojnar:matrix.org
Looking at the error some more, it indeed appears to be contamination. It tries to load libs from guix store

In reply to @jtojnar:matrix.org
Looking at the error some more, it indeed appears to be contamination. It tries to load libs from guix store

In reply to @jtojnar:matrix.org
Ashvith: adding it to the shell will not override more forceful environment variables. Look at env if there are LD_LIBRARY_PATH or something