A12LOOP  - tests of the libarcan_a12 implementation running in-mem
PROXYCON - sets up a local proxy via the 'proxycon' connection point
SHMIFSRV - minimal one-client server
DIRAPPL  - shmif server for running arcan-net
ANETRUN  - arcan-net host appl runner for easier testing / integration
           than a full arcan instance would need
