Download R-4.0.5 for Windows. The R-project for statistical computing. If you want to double-check that the package you have downloaded matches the package distributed by CRAN, you can compare the md5sum of the .exe to the fingerprint on the master server. You will need a version of md5sum for windows: both graphical and comm cran.r-project.org

install.packages(c("devtools", "pkgload", "RSQLite"))

install.packages("cli", repos="https://cran.seoul.go.kr")