flake.lock: Update

Flake lock file updates:

• Updated input 'nixpkgs':
    'github:NixOS/nixpkgs/017ef2132a5bda50bd713aeabce8f918502d4ec1' (2023-10-30)
  → 'github:NixOS/nixpkgs/8f1180704ac35baded1a74164365ac7cdfba6f38' (2023-11-22)
• Updated input 'nixpkgs-unstable':
    'github:NixOS/nixpkgs/0cbe9f69c234a7700596e943bfae7ef27a31b735' (2023-10-29)
  → 'github:NixOS/nixpkgs/e4ad989506ec7d71f7302cc3067abd82730a4beb' (2023-11-19)

flake.lock

@@ -94,11 +94,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1698696950,
-        "narHash": "sha256-FHFL58t6lMumvWqwundC8fDDDLOIvc+JJBNIAlPjrDY=",
+        "lastModified": 1700678569,
+        "narHash": "sha256-2Ki+2UvOidxEb3xB4ADqlbPQ2BZOF4uZMR094O8or2I=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "017ef2132a5bda50bd713aeabce8f918502d4ec1",
+        "rev": "8f1180704ac35baded1a74164365ac7cdfba6f38",
         "type": "github"
       },
       "original": {
@@ -124,11 +124,11 @@
     },
     "nixpkgs-unstable": {
       "locked": {
-        "lastModified": 1698611440,
-        "narHash": "sha256-jPjHjrerhYDy3q9+s5EAsuhyhuknNfowY6yt6pjn9pc=",
+        "lastModified": 1700390070,
+        "narHash": "sha256-de9KYi8rSJpqvBfNwscWdalIJXPo8NjdIZcEJum1mH0=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "0cbe9f69c234a7700596e943bfae7ef27a31b735",
+        "rev": "e4ad989506ec7d71f7302cc3067abd82730a4beb",
         "type": "github"
       },
       "original": {

flake.nix

@@ -2,7 +2,7 @@
   inputs = {
     nixpkgs.url = "flake:nixpkgs/nixos-23.05";
     nixpkgs-unstable.url = "flake:nixpkgs/nixos-unstable";
-    utils.url = "github:gytis-ivaskevicius/flake-utils-plus/v1.3.1";
+    utils.url = "github:gytis-ivaskevicius/flake-utils-plus/v1.4.0";
     simple-nixos-mailserver = {
       url = "gitlab:simple-nixos-mailserver/nixos-mailserver/nixos-23.05";
       inputs = {
@@ -24,6 +24,8 @@
 
     inherit self inputs;
 
+    channels.nixpkgs-unstable.config = { allowUnfree = true; };
+
     supportedSystems = [ "x86_64-linux" ];
 
     # Patch example

systems/common-gui.nix

@@ -1,8 +1,6 @@
 { config, pkgs, ... }:
 
 {
-  nixpkgs.config.allowUnfreePredicate = (pkg: true);
-
   environment.systemPackages = with pkgs; [
     filezilla
     qbittorrent
@@ -16,8 +14,8 @@
 
     betaflight-configurator
 
-    electrum
-    electron-cash
+    # electrum
+    # electron-cash
     ledger-live-desktop
     monero-gui