From e2ec4d3032ee3d3dc3be935b0e2af9ad7ff0c511 Mon Sep 17 00:00:00 2001
From: Bruno BELANYI <bruno@belanyi.fr>
Date: Tue, 30 Jan 2024 12:22:04 +0100
Subject: [PATCH] nixos: services: paperless: fix classifier hangs

This is an experimental fix to try and get around an issue with the
default BLAS/LAPACK implementation. See [1] for more details.

[1]: https://github.com/NixOS/nixpkgs/issues/240591
---
 modules/nixos/services/paperless/default.nix | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/modules/nixos/services/paperless/default.nix b/modules/nixos/services/paperless/default.nix
index f528ad7..f62879a 100644
--- a/modules/nixos/services/paperless/default.nix
+++ b/modules/nixos/services/paperless/default.nix
@@ -1,4 +1,4 @@
-{ config, lib, ... }:
+{ config, lib, pkgs, ... }:
 let
   cfg = config.my.services.paperless;
 in
@@ -80,6 +80,9 @@ in
           # Misc
           PAPERLESS_TIME_ZONE = config.time.timeZone;
           PAPERLESS_ADMIN_USER = cfg.username;
+
+          # Fix classifier hangs
+          LD_LIBRARY_PATH = "${lib.getLib pkgs.mkl}/lib";
         };
 
       # Admin password