Mastodon: trying an empty inbox

david/mastodon/inbox.json

@@ -0,0 +1 @@
+{}

david/mastodon/profile.json

@@ -18,7 +18,7 @@
     ],
     "discoverable": false,
     "endpoints": {
-        "sharedInbox": "https://larlet.fr/dummy"
+        "sharedInbox": "https://larlet.fr/mastodon/inbox.json"
     },
     "id": "https://larlet.fr/david/mastodon/profile.json",
     "icon": {