Thankfully, Noble Hold’em — the variant for HPI Showdown 2025 — is based on Texas Hold’em, so lots of ressources for the latter are (often in modified form!) also relevant for the former.
While it is of course useful to go through a variety of different ressources, don’t get lost in the junge of ressources. A bot, only using simple (pre)computations, in which parameters such as bet sizes are optimized by experimentation, can already defeat average poker players and might have a fair shot.
These are just a few examples.