There's a new fork of barrier called input leap (not to be confused with the leap motion), https://github.com/input-leap/input-leap with work on getting Wayland support in shape. Not sure how far the support is atm, but the gnome 45 release notes mentioned "Wayland support for Input Leap" (https://release.gnome.org/45/)
Wayland tracker issue, https://github.com/input-leap/input-leap/issues/109