I started BPM development again after 9 years. In my next process requirement, I need to implement some user tasks. When I was checking the documentation I noticed Business Console is being deprecated and 10.15 is the last version I can have it. Previously we didn't have any tasks and we don't have anything with Business Console. I don't want to introduce a new product that is already deprecated. The documentation says, it is not replaced with anything, and it doesn't recommend anything either. It just says, "Use modern frameworks instead", but it doesn't tell me how. I am not familiar with task development and I am not a front end developer either. I am only familiar with BPM. 

My questions are:

1. Do I need Business Console to implement/deploy user tasks?
2. What can I replace Business Console with if it is needed? 
3. How do I use modern frameworks?

Any reply is appreciated. You can point me towards the correct documentation to follow as well.