Looking for simple buy/sell at certain amount strategy

[Teo]

Hi folks,

I am looking for a simple buy at a certain price / sell at a certain price Startegy, offering a coffee for a solution 

https://github.com/TeoWay/Gekko-Strategies
Wrote a few days ago, my first. I did not think that anyone could need it, except me. Have a good idea where it can be useful?