I would stay away from mongo as a database depending on what you are doing (in almost all cases, you don't need mongo. There are better options). Tech debt from

I would stay away from mongo as a database depending on what you are doing (in almost all cases, you don't need mongo. There are better options). Tech debt from mongo can pile up soon. Can you explain more about the product? React is alright. Make sure to use hooks instead of classes and encourage semantic separation. Separate by the use case of the component. Too often people either end up with too big files doing everything or too many small files that should just be a one file. Use typescript and jsdocs. It will help you make less bugs and help unfamiliar devs quickly start working. Use something like nestjs to give structure. Other than that, you are good to go.