Fixes (#12675)

misc/tools.func

@@ -8192,3 +8192,23 @@ function fetch_and_deploy_from_url() {
   msg_ok "Successfully deployed archive to $directory"
   return 0
 }
+
+setup_nonfree() {
+  local sources_file="/etc/apt/sources.list.d/debian-nonfree.sources"
+
+  if [ ! -f "$sources_file" ]; then
+    cat <<EOF >$sources_file
+Types: deb
+URIs: http://deb.debian.org/debian
+Suites: trixie trixie-updates
+Components: main contrib non-free non-free-firmware
+
+Types: deb
+URIs: http://security.debian.org/debian-security
+Suites: trixie-security
+Components: main contrib non-free non-free-firmware
+EOF
+  fi
+  $STD apt update
+  return 0
+}