Hi Stefan, 26 avr. 2025, 03:52 de monnier@iro.umontreal.ca: > Is there some way to setup a machine such that one user can login into it > and see a Debian stable system, while another user can log into it (in > another vty) and get, say, a Debian sid system? > When you say "while" you mean "at the same time"? Otherwise, maybe dual/multi-boot could be a solution? l0f4r0