From f42d4482ff453e30e9658a77f78318c52307bd49 Mon Sep 17 00:00:00 2001
From: Padreug <padreug@aiolabs.dev>
Date: Sun, 28 Jun 2026 10:43:53 +0200
Subject: [PATCH] fix(fastfetch): handle null omnixy.preset
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`${cfg.preset or "custom"}` only falls back when the attr is missing,
not when it's null — and omnixy.preset defaults to null. A host that
doesn't set a preset (any consumer of nixosModules.omnixy) hit 'cannot
coerce null to a string'. Use an explicit null check. Surfaced by the
dependency-model consumer test.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---
 modules/fastfetch.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/modules/fastfetch.nix b/modules/fastfetch.nix
index 02549e1..4b4ec8b 100644
--- a/modules/fastfetch.nix
+++ b/modules/fastfetch.nix
@@ -165,7 +165,7 @@ in
           },
           {
             "type": "custom",
-            "format": "  󰣇 Preset: ${cfg.preset or "custom"}",
+            "format": "  󰣇 Preset: ${if cfg.preset == null then "custom" else cfg.preset}",
             "keyColor": "magenta"
           },
           {