R packages shinny app combined with actuarial content to build a pricing tool

The task is to build a pricing tool for an insurance company that calculates premiums and reserves for different life assurance and life annuity products, for both single and joint lives. You will use this tool to analyse and recommend an appropriate mortality table for single life assurances and annuities
I will start this projects next week, and I am unfamiliar with shinny app, so I will need some guidance and corrections for my work, therefore I am not just interested in results but also the process to get it done.