command interface - give a cell a target pith and stud, and output will route to that pith

pkg/arvo/neo/src/std/con/node-accel.hoon

@@ -25,4 +25,5 @@
     (vol:mu "code")
     ?~(a-path ~ `(pave:neo u.a-path))
     ?~(b-path ~ `(pave:neo u.b-path))
+    ~  :: XX fill in target
 ==

pkg/arvo/neo/src/std/imp/accel-cell.hoon

@@ -65,7 +65,13 @@
   =/  vavb=[vase vase]  (get-deps-vases bowl)
   =.  result.cell
     (render-hoon code.cell vavb)
-  [~ !>(cell)]
+  :_  !>(cell)
+  ?~  target.cell  ~
+  ?~  result.cell  ~
+  ?-  -.u.result.cell  
+    %.n  ~
+    %.y  [pith.u.target.cell %poke [stud.u.target.cell p.u.result.cell]]~
+  ==
 --
 |%
 ++  state  %accel-cell

pkg/arvo/neo/src/std/imp/accel.hoon

@@ -11,7 +11,7 @@
   |=  col=@ud
   %+  turn  (gulf rowstart rowend)
   |=  row=@ud
-  [#/[p/our.bowl]/home/accel/[ud/col]/[ud/row] %make %accel-cell `!>(['~' ~ ~ ~]) ~]
+  [#/[p/our.bowl]/home/accel/[ud/col]/[ud/row] %make %accel-cell `!>(['~' ~ ~ ~ ~]) ~]
 --
 ::
 ^-  firm:neo
@@ -56,7 +56,11 @@
       :_  sta
       =;  conf
         :~  :-  (welp here.bowl ~[[ud/row.poke] [ud/column.poke]])
-            [%make %accel-cell `!>([text.poke ~ refa.poke refb.poke]) conf]
+            :*  %make 
+                %accel-cell 
+                `!>([text.poke ~ refa.poke refb.poke target.poke]) 
+                conf
+            ==
         ==
       :: there has to be a more elegant way to do this
       ?~  refa.poke

pkg/arvo/neo/src/std/pro/accel-cell.hoon

@@ -2,4 +2,5 @@ $:  code=@t
     result=(unit (each vase tang))
     refa=(unit pith)
     refb=(unit pith)
+    target=(unit [=pith =stud:neo])
 ==

pkg/arvo/neo/src/std/pro/accel-diff.hoon

@@ -9,5 +9,6 @@ $%  [%inc-width ~]
         text=@t
         refa=(unit pith)
         refb=(unit pith)
+        target=(unit [pith stud:neo])
     ==
 ==