diff --git a/README.md b/README.md
index 938adbc..80f3e7d 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,13 @@ A Rust learning project with poor code quality.
 # Usage
 Run `cargo run` whit environment variable `DB_PATH` set to the path of the database file.
 
+# Env
+DB_PATH: String
+AUTH_REQUIRED: Bool
+
 # Features
 - NIP-1
 - NIP-2
 - NIP-5
+- NIP-42
+- NIP-65