Unified system flake update

home/programs/fish.nix

@@ -94,7 +94,7 @@
     ];
 
     shellAliases = {
-      drsw = "nix-darwin-switch";
+      nrsw = "nixpkgs-switch";
       upa = "nix flake update ~/.config/nixpkgs -v && upn";
       upn = "$HOME/.config/nixpkgs/home/programs/nvim/update-plugins.sh";
       ngc = "nix-collect-garbage -d && sudo nix-collect-garbage -d";

home/programs/scripts/nix-darwin-switch

@@ -1,13 +0,0 @@
-#!/usr/bin/env fish
-
-pushd ~/.config/nixpkgs
-rm -rf result
-
-set system_old (readlink /run/current-system)
-env TERM=xterm-256color darwin-rebuild switch --flake .
-set system_new (readlink /run/current-system)
-
-nvd diff "$system_old" "$system_new"
-
-rm -f result
-popd

home/programs/scripts/nixpkgs-switch

@@ -0,0 +1,34 @@
+#!/usr/bin/env fish
+
+set -g os (uname)
+
+switch $os
+    case Darwin
+        set -g config_dir "$HOME/.config/nixpkgs"
+    case Linux
+        set -g config_dir /etc/nixos
+    case '*'
+        echo "Unsupported OS"
+        exit 1
+end
+
+pushd "$config_dir"
+rm -rf result
+
+set system_old (readlink /run/current-system)
+
+switch $os
+    case Darwin
+        git pull
+        env TERM=xterm-256color darwin-rebuild switch --flake .
+    case Linux
+        sudo git pull
+        sudo nixos-rebuild switch --flake .
+end
+
+set system_new (readlink /run/current-system)
+
+nvd diff "$system_old" "$system_new"
+
+rm -f result
+popd