I am looking forward to building a bioinformatic pipeline web application. I want to have several tabs of functions and visitors can run it even without authentication. I also want an optional log-in page, where users can log-in and store their results. What would be a nice practice to make this happen? I want to use shinymanager. However, it seems this package will add a mandatory log-in page, which will block all visitors who don't have an account. Any suggestions will be very appreciated.