Some participants have already packaged their data sets and analysis scripts in repositories.
From Jonas Großekathöfer, https://gitlab.com/grszkthfr/vrrl/ See, for example the script at https://gitlab.com/grszkthfr/vrrl/-/blob/master/04-analysis/scripts/lmm.R
From Masayuki Asahara, https://github.com/masayu-a/SMLP2021_masayu-a