So far, all I had to do is to build with refclocks and docs (since I like manpages):
./waf configure --refclock=generic,shm,pps,local --enable-doc
After that everything was functional; I then changed the reflock definition from:
server 127.127.28.0 minpoll 4 maxpoll 4 iburst
fudge 127.127.28.0 time1 0.001 refid shm0
refclock shm prefer minpoll 0 maxpoll 4
Still fiddling with new stuff to add, like statistics...