fix emoji on firefox; use unstable joplin

configuration/base/fonts.nix

@@ -1,12 +1,15 @@
 { pkgs, ... }:
 
 {
-  fonts.enableDefaultPackages = true;
-  fonts.packages = with pkgs; [
+  fonts = {
+    enableDefaultPackages = true;
+    fontconfig.useEmbeddedBitmaps = true;
+    packages = with pkgs; [
       noto-fonts
       noto-fonts-cjk-sans
       noto-fonts-cjk-serif
     ];
+  };
 
   # Select internationalisation properties.
   i18n = {

flake.nix

@@ -1,8 +1,8 @@
 {
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs/nixos-25.05?shallow=1";
-    nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable?shallow=1";
-    # use by inputs.nixpkgs-unstable.legacyPackages."${pkgs.system}".[package name]
+    nixpkgs-unstable.url = "github:nixos/nixpkgs/nixos-unstable?shallow=1"; # use by inputs.nixpkgs-unstable.legacyPackages."${pkgs.system}".[package name]
+
     home-manager = {
       url = "github:nix-community/home-manager/release-25.05?shallow=1";
       inputs.nixpkgs.follows = "nixpkgs";

home-manager/base.nix

@@ -1,4 +1,4 @@
-{ pkgs, lib, ... }:
+{ pkgs, lib, inputs, ... }:
 
 {
   imports = [
@@ -13,7 +13,7 @@
     keepassxc
     qbittorrent
     libreoffice-qt
-    joplin-desktop
+    inputs.nixpkgs-unstable.legacyPackages."${pkgs.system}".joplin-desktop
 
     # comms   
     teamspeak_client