Migrate packages

pkgs/sos/default.nix

@@ -0,0 +1,30 @@
+{
+  writeShellApplication,
+  nix-output-monitor,
+  jq,
+}:
+
+writeShellApplication {
+  name = "sos";
+
+  runtimeInputs = [
+    nix-output-monitor
+    jq
+  ];
+
+  # TODO: somehow avoid --no-check-sigs??
+  text = ''
+    #!/usr/bin/env sh
+    # This script performs a nixos system update using the remote builder as remote store.
+    # This should improve the system update performance drastically
+
+    echo "########## building... ##########"
+    OUT=$(nom build "$FLAKE#nixosConfigurations.$(hostname).config.system.build.toplevel" --store ssh-ng://nix@builder.julian-mutter.de --eval-store auto --json | jq -r '.[0].outputs.out')
+    echo "########## output is: $OUT ##########"
+    echo "########## downloading... ##########"
+    nix copy --no-check-sigs --from ssh-ng://nix@builder.julian-mutter.de "$OUT"
+
+    echo "########## activating... ##########"
+    sudo "$OUT"/bin/switch-to-configuration switch
+  '';
+}