diff --git a/electrs/README.md b/electrs/README.md
index f61840d..4cb6468 100644
--- a/electrs/README.md
+++ b/electrs/README.md
@@ -1,6 +1,11 @@
 ## Install the Electrum Server in Rust (electrs) on a RaspiBlitz
 * tested on the Odroid HC1 and XU4
 
+Will take 40 minutes to build the code from source.
+Building the electrs database (need to be done once) takes ~18 hours.
+on an Odroid HC1 with SSD and requires ~50 Gb diskpace.
+
+Possible, but not recommended to use on a computer with less than 2 Gb RAM
 
 Download this script to your RaspiBlitz:  
 `wget https://github.com/openoms/bitcoin-tutorials/raw/master/electrs/electrs_install_on_RaspiBlitz.sh`  
diff --git a/electrs/electrs_install_on_RaspiBlitz.sh b/electrs/electrs_install_on_RaspiBlitz.sh
index 36cb2c5..8910802 100644
--- a/electrs/electrs_install_on_RaspiBlitz.sh
+++ b/electrs/electrs_install_on_RaspiBlitz.sh
@@ -28,7 +28,7 @@ cargo build --release
  
 echo ""
 echo "***"
-echo "The electrs database will be built in /mnt/hdd/electrs/db. Takes ~18 hours and ~38Gb diskspace"
+echo "The electrs database will be built in /mnt/hdd/electrs/db. Takes ~18 hours and ~50Gb diskspace"
 echo "***"
 echo ""
 
@@ -40,4 +40,11 @@ echo "Type the PASSWORD B of your RaspiBlitz followed by [ENTER]:"
 read PASSWORD_B
 
 # Run with password B filled in: 
-cargo run --release -- -vvvv --index-batch-size=10 --jsonrpc-import --db-dir /mnt/hdd/electrs/db --cookie="raspibolt:$PASSWORD_B" --electrum-rpc-addr="0.0.0.0:50001"
\ No newline at end of file
+cargo run --release -- -vvvv --index-batch-size=10 --jsonrpc-import --db-dir /mnt/hdd/electrs/db --cookie="raspibolt:$PASSWORD_B" --electrum-rpc-addr="0.0.0.0:50001"
+
+# to preserve settings:
+# see https://github.com/romanz/electrs/blob/master/src/config.rs
+# sudo nano $HOME/electrs/src/config.rs 
+# change the lines:
+# 73: from: .takes_value(true), to: .default_value("raspibolt:PASSWORD B"),
+# 132: from .default_value("Welcome to electrs (Electrum Rust Server)!") to your custom message
\ No newline at end of file