This is an interesting endeavour that I also investigated. In my case, the dream of making millions via crypto arbitrage fell apart with many different problems.

1. Stale pricing data; exchanges rate limit their api's to check data.

2. Blockchain transactions take an indefinite amount of time, unless on the same exchange.

3. Competition, thousands of other people are playing the arbitrage game too...

It's interesting that this project (like many others) is open for many users to play the arbitrage game. I speculate that it's because it's not profitable to do it yourself, only to sell the tools to other people...