Destroy every runtime and its services in reverse compiled order.
Read a required typed service published by an installed System.
Read a typed service when its provider is optional.
Read an installed System runtime for diagnostics or explicit extension APIs.
Return whether a System identity is currently installed.
Initialize an entire System set transactionally. Intended for Stage.create().
Install one System and recompile the frame schedule.
Dispatch the post-render phase in compiled order.
Dispatch the post-update phase in compiled order.
Dispatch the pre-render phase in compiled order.
Dispatch the pre-update phase in compiled order.
Remove one leaf System. Hard dependants must be removed first.
Per-Stage System scheduler and service registry. Ordering is compiled only when the installed set changes; frame dispatch walks flat phase-specific callback arrays.