This gave me PTSD on dealing with algorithmic stock market stuff. Glad you are doing it, I feel like this model accumulates tech debt too quickly, you are stuck doing integrations over and over again.
Everyone that can write code just moved over to crypto, where trading is 24/7, the CeFi exchanges have free, standardized APIs and the onchain stuff is super easy to code too.
In TradFi like this, a whole nother decade has gone by and barely anything has changed, the ridiculous barrier of entry is what makes people believe you have to be an investment banking quant just to write a trading algorithm. When its really just the cost of getting direct market access.