diff --git a/.env.example b/.env.example
index 8ff04b35..8c3e2657 100644
--- a/.env.example
+++ b/.env.example
@@ -22,6 +22,13 @@ ROUTSTR_SECRET_KEY=
 
 # Database
 # DATABASE_URL=sqlite+aiosqlite:///keys.db
+# Keep total pool capacity across all workers below the database connection limit.
+# DATABASE_POOL_SIZE=5
+# DATABASE_MAX_OVERFLOW=0
+# DATABASE_POOL_TIMEOUT=5
+# DATABASE_POOL_RECYCLE=1800
+# DATABASE_POOL_PRE_PING=true
+# DATABASE_POOL_HOLD_WARN_SECONDS=10
 
 # Node Information
 # NAME=My Routstr Node
@@ -31,6 +38,7 @@ ROUTSTR_SECRET_KEY=
 # RELAYS="wss://relay.damus.io,wss://relay.nostr.band,wss://eden.nostr.land,wss://relay.routstr.com"
 # ENABLE_ANALYTICS_SHARING=true
 # CASHU_MINTS="https://mint.minibits.cash/Bitcoin,https://mint.cubabitcoin.org,https://ecashmint.otrta.me"
+# MINT_OPERATION_CONCURRENCY=4
 # RECEIVE_LN_ADDRESS=
 
 # Custom Pricing Configuration