zenix: update, zoxide, more tidy

pkgs/mpv-skipsilence.nix

@@ -4,20 +4,20 @@
   fetchgit,
   gitUpdater,
 }:
-buildLua rec {
+buildLua {
   pname = "mpv-skipsilence";
   version = "1.0";
 
   src = fetchgit {
     url = "https://codeberg.org/ferreum/mpv-skipsilence.git";
-    hash = "sha256-aAzLegotOUILhpz7GcMJvCY4R3jSZCDIKOwVfM21kdY=";
+    hash = "sha256-fg8vfeb68nr0bTBIvr0FnRnoB48/kV957pn22tWcz1g=";
   };
   passthru.updateScript = gitUpdater {};
 
   meta = with lib; {
     description = "Increase playback speed during silence - a revolution in attention-deficit induction technology.";
     homepage = "https://github.com/ferreum/mpv-skipsilence";
-    license = licenses.unlicense; # actually they don't have a license
+    license = licenses.gpl2;
     maintainers = [];
   };
 }