diff --git a/pkg/arvo/sys/arvo.hoon b/pkg/arvo/sys/arvo.hoon
index df866a7f1..a63269508 100644
--- a/pkg/arvo/sys/arvo.hoon
+++ b/pkg/arvo/sys/arvo.hoon
@@ -1263,7 +1263,7 @@
     ::
     =/  raw
       ~>  %slog.[0 leaf+"vega: compiling hoon"]
-      (ride %noun u.hun)
+      (mure |.((ride %noun u.hun)))
     ::  activate the new compiler gate, producing +ride
     ::
     =/  cop  .*(0 +.raw)
@@ -1274,12 +1274,14 @@
     ?>  |(=(nex hoon-version) =(+(nex) hoon-version))
     ::  if we're upgrading language versions, recompile the compiler
     ::
-    =>  ?:  =(nex hoon-version)
-          [hot=`*`raw .]
-        ~>  %slog.[0 leaf+"vega: recompiling hoon {<nex>}k"]
-        ~&  [%hoon-compile-upgrade nex]
-        =/  hot  (slum cop [%noun hun])
-        .(cop .*(0 +.hot))
+    =^  hot=*  cop
+      ?:  =(nex hoon-version)
+        [raw cop]
+      ~>  %slog.[0 leaf+"vega: recompiling hoon {<nex>}k"]
+      ~&  [%hoon-compile-upgrade nex]
+      %-  mure  |.
+      =/  hot  (slum cop [%noun hun])
+      [hot .*(0 +.hot)]
     ::  extract the hoon core from the outer gate (+ride)
     ::
     =/  hoc  .*(cop [%0 7])
@@ -1292,6 +1294,7 @@
   ::
   =/  rav
     ~>  %slog.[0 leaf+"vega: compiling kernel {(scow %p (mug hyp))}"]
+    %-  mure  |.
     (slum cop [hyp van])
   ::  activate arvo, and extract the arvo core from the outer gate
   ::
diff --git a/pkg/arvo/sys/hoon.hoon b/pkg/arvo/sys/hoon.hoon
index 4bec14bce..50f3d301b 100644
--- a/pkg/arvo/sys/hoon.hoon
+++ b/pkg/arvo/sys/hoon.hoon
@@ -12035,6 +12035,15 @@
   ?~  a  !!
   ~_(i.a $(a t.a))
 ::
+++  mure
+  |*  =(trap *)
+  ^+  $:trap
+  =/  res  (mule trap)
+  ?-  -.res
+    %&  p.res
+    %|  (mean leaf+"mure: road" p.res)
+  ==
+::
 ++  slew                                                ::  get axis in vase
   |=  {axe/@ vax/vase}  ^-  (unit vase)
   ?.  |-  ^-  ?
diff --git a/pkg/arvo/sys/vane/clay.hoon b/pkg/arvo/sys/vane/clay.hoon
index d14592625..e160638bf 100644
--- a/pkg/arvo/sys/vane/clay.hoon
+++ b/pkg/arvo/sys/vane/clay.hoon
@@ -379,7 +379,6 @@
     `[(weld pax pat) %mime !>(u.mim)]
   ::
   [deletes changes]
-::
 --  =>
 ~%  %clay  +  ~
 |%
@@ -757,7 +756,7 @@
       =^  sut=vase  nub  (run-tauts sut %lib lib.pile)
       =^  sut=vase  nub  (run-raw sut raw.pile)
       =^  sut=vase  nub  (run-bar sut bar.pile)
-      =/  res=vase  (slap sut hoon.pile)
+      =/  res=vase  (mure |.((slap sut hoon.pile)))
       [res nub]
     ::
     ++  parse-pile
@@ -1545,6 +1544,7 @@
       zuse.u.fer
       ::
       ++  build-hoon
+        %-  mure  |.
         ~>  %slog.0^leaf+"clay: building hoon on {<syd>}"
         =/  gen
           ~>  %mean.%hoon-parse-fail
@@ -1554,6 +1554,7 @@
       ::
       ++  build-arvo
         |=  hoon=vase
+        %-  mure  |.
         ~>  %slog.0^leaf+"clay: building arvo on {<syd>}"
         =/  gen
           ~>  %mean.%arvo-parse-fail
@@ -1563,6 +1564,7 @@
       ::
       ++  build-zuse
         |=  arvo=vase
+        %-  mure  |.
         ~>  %slog.0^leaf+"clay: building zuse on {<syd>}"
         =/  gen
           ~>  %mean.%zuse-parse-fail
diff --git a/pkg/arvo/sys/vane/gall.hoon b/pkg/arvo/sys/vane/gall.hoon
index 93bc674b2..eeea1970d 100644
--- a/pkg/arvo/sys/vane/gall.hoon
+++ b/pkg/arvo/sys/vane/gall.hoon
@@ -1,4 +1,4 @@
-!:  ::  %gall, agent execution
+::  ::  %gall, agent execution
 !?  163
 ::
 ::::