How to talk about a nonprofit bot without breaking community rules

Hi Everyone

I want to socialise a covid vaccine nudge & remind bot which I think can be useful in the present scenario. I have no axe to grind (it’s not for profit I am paying platform and server costs from my own pocket) but want to be conscious of the subreddit rule where it might look like I am ‘using this subreddit for self-promotion and advertisement’.Is there a way to do that while being respectful of the rule?