How to generate dynamic html in rmarkdown

Thank you for your reply!
In R shiny. I was able to design ui and functions autonomously. But shinyapp can only be used locally by me. I can't share the html to others. Also, I previously deployed shiny in ubuntu others were not able to view the webpage. Since I don't know javascript, I was wondering if there is any R package that can do this, even if he looks simple.
I asked the question once, but then gave it up
How to let other people use shinyapp via web page - shiny - Posit Community (rstudio.com)