If you like to have multisession-support you can for sure take seatd (https://sr.ht/~kennylevinsen/seatd/) into perspective and go further developing and porting an own package on its base for Hyperbola. We would like to welcome those community-contributions.

Since elogind (and thus systemd-logind) are not part of Hyperbola i wonder if the functionality of seat management is offered in Hyperbola.

By 'seat management functionality' i mean the ability to offer multiseat and multisession (with user switching) use cases and even  enhance security  in  in a single seat - single session setup by offering a different way to start a display server rather than as root , or by standard  linux user groups.