configure fixes for headscale and nextcloud

configure.d/10-core.sh

@@ -126,6 +126,9 @@ setup_superpanel() {
 setup_tailscale() {
   # --reset and --force-reauth move the machine from any other tailnet;
   # --operator lets you, and the Tailscale GNOME extension, use it without sudo
+  if ! systemctl is-active -q tailscaled; then
+    sudo systemctl enable --now tailscaled || return 1
+  fi
   echo "Open the link below to sign in to your Core's Tailscale network."
   sudo tailscale up --reset --force-reauth --login-server "https://headscale.$CORE_DOMAIN" \
     --accept-routes --operator="$USER" || return 1
@@ -262,9 +265,10 @@ EOF
   mkdir -p "$(dirname "$bookmarks")"
   grep -qs "^file://$MOUNT " "$bookmarks" || echo "file://$MOUNT $CORE_DOMAIN" >> "$bookmarks"
 
-  # sg picks up the network group now, without logging out and in again
+  # A new session through sudo picks up the network group now, without
+  # logging out and in again (Arch has no sg)
   if ! mountpoint -q "$MOUNT"; then
-    sg network -c "mount $MOUNT" || return 1
+    sudo -u "$USER" mount "$MOUNT" || return 1
   fi
   echo "Your Nextcloud files are at $MOUNT (\"$CORE_DOMAIN\" in the Files sidebar)."
 }