how continue my steps for deploy shiny project

i have this github repo

but i cant continue

https://drive.google.com/file/d/1mZ9Mz-Zz_Uc_pKM_bq19fo5JQGj8O3Qp/view?usp=drivesdk

pls view that video for help me in this issue

im in a new rstudio instance
RStudio Server
2022.07.1 Build 554