That is a great idea and an amazing ask, I also want to make sure I have a system where it could make me a billion dollars in cash, not in assets but pure cash, give me the biggest castle in the world, make me the president of the world and also help me with the immortality thing I am working on.
As you might imagine not everything is possible all at the same time, the world is not really all sunshines and rainbows, there is a thing called being realistic and I feel like what you are asking is so out of touch and so unrealistic is that I would think you could ask for a miracle to happen. There is no thing in the world that could simply just "make me money" and go away, it is not as easy as that, and this is just too much to ask from a simple software that you code.
I'm fully aware that trading bots need maintenance and don't just 'make money and go away'. I don't know why you think making a trading bot base on a basic trading strategy is so unrealistic when much more complex trading bots are being use in other markets (stocks, Forex, etc..) since decades. There are even third party platforms that are selling cloud based customizable trading bots since a few years in the crypto space like 3commas.