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diff --git a/README.md b/README.md
index 199f23a..5a28690 100644
--- a/README.md
+++ b/README.md
@@ -247,6 +247,9 @@ speeding up local connections, and usually requiring NAT. _pasta_:
 
 ## Features
 
+✅: done/supported, ❌: out of scope, 🛠: in progress/being considered
+⌚: nice-to-have, eventually
+
 ### Protocols
 * ✅ IPv4
     * ✅ all features, except for