From 08b8136f686aa425a5ce0e63293d4e66cdfa79f6 Mon Sep 17 00:00:00 2001
From: Superredstone <patrickcanal3@gmail.com>
Date: Sat, 16 May 2026 10:40:41 +0200
Subject: [PATCH] fix(font): flatpak gtk application correct font rendering

---
 modules/nix-config/fonts.nix | 60 +++++++++++++++++++++++++++++++++++-
 1 file changed, 59 insertions(+), 1 deletion(-)

diff --git a/modules/nix-config/fonts.nix b/modules/nix-config/fonts.nix
index 14e5c6f..8177abc 100644
--- a/modules/nix-config/fonts.nix
+++ b/modules/nix-config/fonts.nix
@@ -1,5 +1,63 @@
-{ pkgs, ... }:
+{ pkgs, config, ... }:
 {
+  system.fsPackages = [ pkgs.bindfs ];
+  fileSystems =
+    let
+      mkRoSymBind = path: {
+        device = path;
+        fsType = "fuse.bindfs";
+        options = [
+          "ro"
+          "resolve-symlinks"
+          "x-gvfs-hide"
+        ];
+      };
+      fontsPkgs =
+        config.fonts.packages
+        ++ (with pkgs; [
+          bibata-cursors
+        ]);
+      x11Fonts =
+        pkgs.runCommand "X11-fonts"
+          {
+            preferLocalBuild = true;
+            nativeBuildInputs = with pkgs; [
+              gzip
+              mkfontscale
+              mkfontdir
+            ];
+          }
+          (
+            ''
+              mkdir -p "$out/share/fonts"
+              font_regexp='.*\.\(ttf\|ttc\|otb\|otf\|pcf\|pfa\|pfb\|bdf\)\(\.gz\)?'
+            ''
+            + (builtins.concatStringsSep "\n" (
+              builtins.map (pkg: ''
+                find ${toString pkg} -regex "$font_regexp" \
+                  -exec ln -sf -t "$out/share/fonts" '{}' \;
+              '') fontsPkgs
+            ))
+            + ''
+              cd "$out/share/fonts"
+              mkfontscale
+              mkfontdir
+              cat $(find ${pkgs.fontalias}/ -name fonts.alias) >fonts.alias
+            ''
+          );
+      aggregatedIcons = pkgs.buildEnv {
+        name = "system-icons";
+        paths = fontsPkgs;
+        pathsToLink = [
+          "/share/icons"
+        ];
+      };
+    in
+    {
+      "/usr/share/icons" = mkRoSymBind (aggregatedIcons + "/share/icons");
+      "/usr/share/fonts" = mkRoSymBind (x11Fonts + "/share/fonts");
+    };
+
   fonts.packages = with pkgs; [
     nerd-fonts.jetbrains-mono
     noto-fonts