scribblr is a project-aware notepad inside RStudio.

scribblr is not yet available on CRAN. In the meanwhile, you can install the development version from my R-universe repository, with:
install.packages("scribblr", repos = "https://vgherard.r-universe.dev")or equivalently from GitHub with:
# install.packages("devtools")
devtools::install_github("vgherard/scribblr")