Using "fss0={sd path}" allows you to parse kips, exosphere and warmboot from a fusee secondary binary.
Exosphere and warmboot are overridable if these entries are defined after that.
Additionally any extra kip can be loaded as before via
kip1={sd path}/* for many
or
kip1={sd path} for a sigle one
Warning: Don't double load core kips like loader, pm, sm and ams_mitm. The result will be a hang.