remove all unstable programs

extra/bluetooth-audio.nix

@@ -1,7 +1,4 @@
 { config, lib, pkgs, ... }:
-let
-  unstable = import <nixos-unstable> { config = { allowUnfree = true; }; };
-in
 {
   hardware.bluetooth = {
     enable = true;
@@ -14,6 +11,6 @@ in
   };
   services.blueman.enable = true;
   environment.systemPackages = with pkgs; [
-    unstable.sony-headphones-client
+    sony-headphones-client
   ];
 }

extra/clean.nix

@@ -1,12 +1,9 @@
 { config, lib, pkgs, ... }:
-let
-  unstable = import <nixos-unstable> { config = { allowUnfree = true; }; };
-in
 {
   environment.systemPackages = with pkgs; [
     baobab
     dupeguru
-    unstable.findimagedupes
+    findimagedupes
     jdupes
     kondo
   ];

extra/media.nix

@@ -1,6 +1,5 @@
 { config, lib, pkgs, ... }:
 let
-  unstable = import <nixos-unstable> { config = { allowUnfree = true; }; };
   yt-dlp = pkgs.yt-dlp.override {
     withAlias = true;
   };
@@ -16,7 +15,7 @@ in
     image_optim
     imagemagick
     inkscape
-    unstable.mat2 # metadata-cleaning
+    mat2 # metadata-cleaning
     mediaelch
     mp3gain
     mp3splt # splitting mp3 files
@@ -26,6 +25,7 @@ in
     projectm # visualization of music
     puddletag # audio tagging
     shotwell # photo management
+    sonixd # cloud-music-player
     soundkonverter
     yt-dlp
   ];

extra/nautilus.nix

@@ -1,7 +1,4 @@
 { config, lib, pkgs, ... }:
-let
-  unstable = import <nixos-unstable> { config = { allowUnfree = true; }; };
-in
 {
   # enable trash & network-mount
   services.gvfs.enable = true;
@@ -24,6 +21,6 @@ in
     # default-programms
     shared-mime-info
     # terminal-context-entry
-    unstable.nautilus-open-any-terminal
+    nautilus-open-any-terminal
   ];
 }