@jeromedalbert we always used rvm (even in production to enable latest versions of ruby on older oses) and never had a smallest issue with it. Heard good things about rbenv, but I could never justify trying it out as its benefits personally only slightly out perform rvm's.
Ruby/Rails full time/stack dev. Leading the dev team at https://calligo.cloud.
Also a big fun of Hanami, Dry-rb, Rom-rb, Elixir and Phoenix