The goal of LSJM is to estimate some location scale joint models.
You can install the development version of LSJM from GitHub with:
# install.packages("devtools")
# devtools::install_github("LeonieCourcoul/LSJM")
install.packages("LSJM", repos = c('https://leoniecourcoul.r-universe.dev', 'https://cloud.r-project.org'))