Kangaroo is a probabilistic algorithm, so you have exactly the same chances as if playing the lottery, but the probability is "if I use 464 RTX 3090 GPUs at 100% for one year using this random piece of software published on the internet that I have no idea how it works, there's a 99.9% chance I win."

You might find the key in the first second (almost 0% probability) or after an year with hundreds of top-end GPUs working together (almost 100% chances, but lots of $$$ and time to invest with a very high risk of losing everything without any profit).

Take into account that:
- a lot of people already tried, are trying, and will try;
- the costs involved and whether you can afford the risk;
- the chance that someone else may find it during this time; you have zero guarantees it's worth the pursue; maybe tomorrow the creator empties all the addresses;
- no one is dumb enough to publish FREE software that works better then what's available publicly, those are merely proof of concept; everyone's on their own;
- this is not a map toward some pirate's treasure chest you've found in a cave - everyone knows about it.

If you don't understand the risks then the best strategy is to forget about the topic and get on with your life.