Create Standalone Installable Shiny Apps
You can look into electricShine. It's supposed to be able to create desktop executable shiny apps. I haven't used it myself and have heard that it can be dependent on the system configuration that you are attempting to run it on, but if it works, it could match what you are looking for.
Offline Shiny App
3 projects | reddit.com/r/Rlanguage | 17 Jan 2022
Shinny app with portable R
4 projects | reddit.com/r/rstats | 15 Oct 2021
Easiest way to share a Shiny App locally to non R users
1 project | reddit.com/r/Rlanguage | 23 Feb 2021
R has a lot of good libraries. But what libraries is R missing?
2 projects | reddit.com/r/Rlanguage | 26 Sep 2021
Shiny app which Uploads a datafile and create a checkbox and textinput and dropdown list for each column
1 project | reddit.com/r/rshiny | 19 May 2021