From cfd2e6fb9cc52b384ed7c7d4bbd367387b547d7b Mon Sep 17 00:00:00 2001
From: Rafael Ieda <git@ieda.me>
Date: Fri, 20 Feb 2026 20:10:31 -0300
Subject: [PATCH] microsoft-edge: fix CJK fonts by default

---
 pkgs/by-name/mi/microsoft-edge/package.nix | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/pkgs/by-name/mi/microsoft-edge/package.nix b/pkgs/by-name/mi/microsoft-edge/package.nix
index b2b3d21d2d39..ac887f4cf407 100644
--- a/pkgs/by-name/mi/microsoft-edge/package.nix
+++ b/pkgs/by-name/mi/microsoft-edge/package.nix
@@ -90,6 +90,11 @@
   libsecret,
   # Edge Specific
   libuuid,
+
+  # Fonts (See issue #463615)
+  makeFontsConf,
+  noto-fonts-cjk-sans,
+  noto-fonts-cjk-serif,
 }:
 let
   opusWithCustomModes = libopus.override { withCustomModes = true; };
@@ -192,6 +197,13 @@ stdenvNoCC.mkDerivation (finalAttrs: {
   rpath = lib.makeLibraryPath deps + ":" + lib.makeSearchPathOutput "lib" "lib64" deps;
   binpath = lib.makeBinPath deps;
 
+  fontsConf = makeFontsConf {
+    fontDirectories = [
+      noto-fonts-cjk-sans
+      noto-fonts-cjk-serif
+    ];
+  };
+
   installPhase = ''
     runHook preInstall
 
@@ -239,6 +251,7 @@ stdenvNoCC.mkDerivation (finalAttrs: {
       --prefix PATH            : "$binpath" \
       --suffix PATH            : "${lib.makeBinPath [ xdg-utils ]}" \
       --prefix XDG_DATA_DIRS   : "$XDG_ICON_DIRS:$GSETTINGS_SCHEMAS_PATH:${addDriverRunpath.driverLink}/share" \
+      --set FONTCONFIG_FILE "${finalAttrs.fontsConf}" \
       --set SSL_CERT_FILE "${cacert}/etc/ssl/certs/ca-bundle.crt" \
       --set CHROME_WRAPPER  "microsoft-edge-$dist" \
       --add-flags "\''${NIXOS_OZONE_WL:+\''${WAYLAND_DISPLAY:+--ozone-platform-hint=auto --enable-features=WaylandWindowDecorations --enable-wayland-ime=true --wayland-text-input-version=3}}" \