never safe to download any software from a non well known people ,
seuntjie so far has a good reputation on how he build a dice bot , you can trust him but of course with a lot of consideration ,
if you still feel insecure , why not you try to build one by yourself?
I wonder why do we need to download something from the internet when majority of the online Casino have their dice bot. We should take cautious in download anything especially if we need it to run in our system. Best thing here is to run it in a virtual machine and use it to a dummy account. the withdraw everything from that account once we are done with gambling.
Making your own bot is really good, though will it ensure you profit? or will your bot be the reason why you will be losing your money. Bots are made to make your gambling activities easy, not really to gain profits from them. Gamblers bet small sometimes even with big bankroll, they use bot than clicking repeatedly the roll button.