Core Lightning - question

Can someone please explain what is the meaning behind this file:

/home/umbrel/umbrel/app-data/core-lightning/data/lightningd/.commando-env

There are 2 parameter values stored:

LIGHTNING_PUBKEY=“03f084e0e…d70065b9630”
LIGHTNING_RUNE=“LJV43bcmB15…pb24j”

It looks like LIGHTNING_PUBKEY is a lightning node ID visible publicly. Does anybody know what LIGHTNING_RUNE is?

I guess these params are linked to private key which is stored in “hsm_secret” file, Am I right?

thank you

Core Lightning Rune is a unique character string that serves as a kind of digital key to authorize access to your Core Lightning node. Essentially, it is a hash that you can share with other applications or services so that they can interact with your node without having to grant full access.

Look at these commands and their description to learn more:
https://docs.corelightning.org/reference/lightning-commando-rune

https://docs.corelightning.org/reference/lightning-createrune