misc update

home: some keybind changes
nvim: random lsp related changes
hosts/satori: add a separate nix.nix file
home/services: random mpd update

hosts/satori/pkgs.nix

@@ -29,11 +29,10 @@
     ccls
     clang-tools
     nodePackages.typescript-language-server
-    nodePackages.svelte-language-server
+    nodePackages.vscode-langservers-extracted
     rnix-lsp
     python3Packages.python-lsp-server
     haskell-language-server
-    fly
     (steam.override {
       extraLibraries = pkgs: [ pkgs.pipewire ];
       extraProfile = ''
@@ -113,21 +112,6 @@
         };
       };
     };
-  };
-  nix = {
-    package = pkgs.nixUnstable;
-    extraOptions = ''
-      experimental-features = nix-command flakes
-    '';
-    trustedUsers = [ "root" "natto" ];
-    binaryCaches = [
-      "https://nix-gaming.cachix.org"
-      "https://nix-community.cachix.org"
-      "https://mirrors.tuna.tsinghua.edu.cn/nix-channels/store"
-    ];
-    binaryCachePublicKeys = [
-      "nix-gaming.cachix.org-1:nbjlureqMbRAxR1gJ/f3hxemL9svXaZF/Ees8vCUUs4="
-      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
-    ];
+    slock.enable = true;
   };
 }