diff --git a/Makefile b/Makefile
index ee69719..18d0934 100644
--- a/Makefile
+++ b/Makefile
@@ -37,6 +37,10 @@ prep-samd:
 	arduino-cli core update-index --config-file arduino-cli.yaml
 	arduino-cli core install adafruit:samd
 
+prep-nrf:
+	arduino-cli core update-index --config-file arduino-cli.yaml
+	arduino-cli core install rakwireless:nrf52
+
 console-site:
 	make -C Console clean site
 
diff --git a/arduino-cli.yaml b/arduino-cli.yaml
index a461917..b7b1622 100644
--- a/arduino-cli.yaml
+++ b/arduino-cli.yaml
@@ -1,3 +1,4 @@
 board_manager:
   additional_urls:
-  - https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
\ No newline at end of file
+  - https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
+  - https://raw.githubusercontent.com/RAKwireless/RAKwireless-Arduino-BSP-Index/main/package_rakwireless_index.json