add static file with public key

caddy/sites/root.caddy

@@ -2,9 +2,21 @@
 	handle_path /test/* {
 		reverse_proxy host:12345
 	}
+
 	handle_path /jellyfin/* {
 		reverse_proxy host:8097
 	}
+
+  handle /.well-known/appspecific/com.tesla.3p.public-key.pem {
+		header Content-Type text/x-pem-file
+		respond <<TXT
+			-----BEGIN PUBLIC KEY-----
+			MFkwEwYHKoZIzj0CAQYIKoZIzj0DAQcDQgAEhS5sHVP4YaWgVKAS0e/B/ObkA9lQ
+			6Whx4Z+VYHhZtP3hQQLtVDGG3e/2ncGTpyStQgLSi9Js3wr1GgoT/DNAsQ==
+			-----END PUBLIC KEY-----
+			TXT 200
+	}
+
 	log {
 		output file /var/log/root.log
 	}