% means path-to-render in renderers
|= [=truss sub-crane=^crane]
^- compose-cranes
::
- =/ =beam
- =, source-rail.scaffold
- [[ship.disc desk.disc [%ud 0]] spur]
- =/ hoon-parser (vang & (en-beam beam))
+ =/ beam-to-render=beam
+ [[ship.disc desk.disc %ud 0] spur]:path-to-render
+ ::
+ =/ hoon-parser (vang & (en-beam beam-to-render))
::
=+ tuz=(posh:hoon-parser truss)
?~ tuz
