next step, updating scanimpl. todo: use LL to catch source events
step. hopefully got the scan impl events right
seems ok, tests passing except for missing stuff in transport impl.
remove one nesting level from scan updates
another nesting level less in proc update
another nesting level less in proc update
...
mix test halfway working. clean up. look at toplogy---we'll need that now
...,
getting tricky
step
...
resurrect proc world
step
first theoretical iteration
we're getting there slowly. osc / resource dependency order is still a mess
... before fiddling around with resource impl
ok, this probably fails now, but stm swallows exceptions
step
...