This is a DT Editor Shiny App that has (almost) all features of data table editor. Here is a live shiny app demo (limited active hours): https://appforiarteam.shinyapps.io/DT_Editor_Example2/
A live tutorial recorded in Shiny Dev Podcast https://shinydevseries.com/post/episode-16-jmclellan/ from 4:18, a Shiny Module tutorial is from 13:23.
Here is a DT editor shiny module that can fit for any data.table You just need to create your data.table and load it to the same location of your shiny app as note.rds