diff --git a/.gitignore b/.gitignore
index d997e96442..8df46502df 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 .vscode
 .env
 tmp/
+.envrc
diff --git a/README.md b/README.md
index d35b8ddee6..560f9c542e 100644
--- a/README.md
+++ b/README.md
@@ -28,10 +28,11 @@ git clone --recursive git@github.com:PeerDB-io/peerdb.git
 cd peerdb
 
 # Run docker containers: peerdb-server, postgres as catalog, temporal
+# Make sure to have at least 5GB of RAM for building PeerDB docker images
 export COMPOSE_PROJECT_NAME=peerdb-stack
 docker compose up
 
-# connect to peerdb and query away
+# connect to peerdb and query away (Use psql version >=14.0, <16.0)
 psql "port=9900 host=localhost password=peerdb"
 ```