Add protobuf mode

modules/conf.org

@@ -34,6 +34,16 @@ Support for YAML[fn:3] files.
 (use-package yaml-mode)
 #+end_src
 
+** gRPC
+
+Support for gRPC[fn:4] protocol buffer definition files.
+
+#+begin_src emacs-lisp
+(use-package protobuf-mode
+  :after org
+  :config (add-to-list 'org-structure-template-alist '("pb" . "src protobuf")))
+#+end_src
+
 * Footnotes
 
 [fn:1] https://github.com/zweifisch/ob-http
@@ -41,3 +51,5 @@ Support for YAML[fn:3] files.
 [fn:2] https://chrishayward.xyz/posts/kanye-as-a-service/
 
 [fn:3] https://emacswiki.org/emacs/YamlMode
+
+[fn:4] https://github.com/protocolbuffers/protobuf/blob/master/editors/protobuf-mode.el