diff --git a/bin/solid.pill b/bin/solid.pill
index bd9f5c3935..5f852ceae9 100644
--- a/bin/solid.pill
+++ b/bin/solid.pill
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:ae3add505f1c37c3d10f2781bca3c9fc5032c11c9b9b8a6218d4301e462d4ccc
-size 16089760
+oid sha256:4bd63360c1b2fab69a35f71d360db6b9c71a796965d1826f919cf271e990bad2
+size 15816973
diff --git a/pkg/arvo/app/aqua.hoon b/pkg/arvo/app/aqua.hoon
index d961331bac..748a2ee2f5 100644
--- a/pkg/arvo/app/aqua.hoon
+++ b/pkg/arvo/app/aqua.hoon
@@ -387,7 +387,7 @@
           %g  %gall
         ==
       =/  pax
-        /(scot %p our.hid)/home/(scot %da now.hid)/sys/vane/[vane]
+        /(scot %p our.hid)/work/(scot %da now.hid)/sys/vane/[vane]
       =/  txt  .^(@ %cx (weld pax /hoon))
       [/vane/[vane] [%veer v pax txt]]
     =>  .(this ^+(this this))
@@ -401,7 +401,7 @@
       :_  ~
       %-  unix-event
       %-  %*(. file-ovum:pill-lib directories slim-dirs)
-      /(scot %p our.hid)/home/(scot %da now.hid)
+      /(scot %p our.hid)/work/(scot %da now.hid)
     =^  ms  all-state  (poke-pill pil)
     (emit-cards ms)
   ::
diff --git a/pkg/arvo/gen/hood/ota.hoon b/pkg/arvo/gen/hood/ota.hoon
new file mode 100644
index 0000000000..c91f5b9f3a
--- /dev/null
+++ b/pkg/arvo/gen/hood/ota.hoon
@@ -0,0 +1,14 @@
+::  Kiln: Continuously merge local desk from (optionally-)foreign one
+::
+::::  /hoon/ota/hood/gen
+  ::
+/?    310
+::
+::::
+  ::
+:-  %say
+|=  $:  [now=@da eny=@uvJ bec=beak]
+        [arg=?(~ [her=@p sud=@tas ~]) ~]
+    ==
+:-  %kiln-ota
+?~(arg ~ `[her sud]:arg)
diff --git a/pkg/arvo/gen/spider/kill.hoon b/pkg/arvo/gen/spider/kill.hoon
index 7505d9cc3e..6f691bb7e9 100644
--- a/pkg/arvo/gen/spider/kill.hoon
+++ b/pkg/arvo/gen/spider/kill.hoon
@@ -1,3 +1,3 @@
 :-  %say
-|=  *
+|=  [^ ~ ~]
 [%spider-kill ~]
diff --git a/pkg/arvo/gen/trouble.hoon b/pkg/arvo/gen/trouble.hoon
index 3ab8d718e8..4d9ca4630c 100644
--- a/pkg/arvo/gen/trouble.hoon
+++ b/pkg/arvo/gen/trouble.hoon
@@ -7,7 +7,7 @@
 :-  %noun
 =<
 :~
-  [%base-hash .^(@uv %cz (pathify ~.base ~))]
+  [%kids-hash .^(@uv %cz (pathify ~.kids ~))]
   [%home-hash .^(@uv %cz (pathify ~.home ~))]
   ::
   (info %our our)
diff --git a/pkg/arvo/lib/hood/kiln.hoon b/pkg/arvo/lib/hood/kiln.hoon
index cd39ae1e78..b10c302a6e 100644
--- a/pkg/arvo/lib/hood/kiln.hoon
+++ b/pkg/arvo/lib/hood/kiln.hoon
@@ -11,14 +11,10 @@
 |%                                                      ::  ::
 ++  part  {$kiln $0 pith}                               ::  kiln state
 ++  pith                                                ::  ::
-    $:  rem/(map desk per-desk)                         ::
-        syn/(map kiln-sync let/@ud)                     ::
-        autoload-on/?                                   ::
-        cur-hoon/@uvI                                   ::
-        cur-arvo/@uvI                                   ::
-        cur-zuse/@uvI                                   ::
-        cur-vanes/(map @tas @uvI)                       ::
-        commit-timer/{way/wire nex/@da tim/@dr mon=term}
+    $:  rem=(map desk per-desk)                         ::
+        syn=(map kiln-sync let/@ud)                     ::
+        ota=(unit [=ship =desk =aeon])                  ::
+        commit-timer=[way=wire nex=@da tim=@dr mon=term]
     ==                                                  ::
 ++  per-desk                                            ::  per-desk state
     $:  auto/?                                          ::  escalate on failure
@@ -127,6 +123,168 @@
     abet:(spam (render "already tracking" [sud her syd]:hos) ~)
   abet:abet:start-track:(auto hos)
 ::
+++  update
+  |%
+  ++  make-wire
+    |=  =path
+    ?>  ?=(^ ota)
+    %-  welp
+    :_  path
+    /kiln/ota/(scot %p ship.u.ota)/[desk.u.ota]/(scot %ud aeon.u.ota)
+  ::
+  ++  check-ota
+    |=  =wire
+    ?~  ota
+      |
+    ~!  ota=ota
+    ?&  ?=([@ @ @ *] wire)
+        =(i.wire (scot %p ship.u.ota))
+        =(i.t.wire desk.u.ota)
+        =(i.t.t.wire (scot %ud aeon.u.ota))
+    ==
+  ::
+  ++  render
+    |=  [mez=tape error=(unit (pair term tang))]
+    %+  spam
+      ?~  ota
+        leaf+mez
+      :^  %palm  [" " ~ ~ ~]  leaf+(weld "kiln: " mez)
+      ~[leaf+"from {<desk.u.ota>}" leaf+"on {<ship.u.ota>}"]
+    ?~  error
+      ~
+    [>p.u.error< q.u.error]
+  ::
+  ++  render-ket
+    |=  [mez=tape error=(unit (pair term tang))]
+    ?>  ?=(^ ota)
+    =<  ?>(?=(^ ota) .)
+    %+  spam
+      :^  %palm  [" " ~ ~ ~]  leaf+(weld "kiln: " mez)
+      ~[leaf+"from {<desk.u.ota>}" leaf+"on {<ship.u.ota>}"]
+    ?~  error
+      ~
+    [>p.u.error< q.u.error]
+  ::
+  ++  poke
+    |=  arg=(unit [=ship =desk])
+    abet:(poke-internal arg)
+  ::
+  ++  poke-internal
+    |=  arg=(unit [=ship =desk])
+    ^+  ..abet
+    =?  ..abet  =(arg (bind ota |=([=ship =desk =aeon] [ship desk])))
+      (render "restarting OTA sync" ~)
+    =?  ..abet  ?=(^ ota)
+      =.  ..abet  (render-ket "cancelling OTA sync" ~)
+      ..abet(ota ~)
+    ?~  arg
+      ..abet
+    =.  ota  `[ship.u.arg desk.u.arg *aeon]
+    =.  ..abet  (render "starting OTA sync" ~)
+    %:  emit
+      %pass  (make-wire /find)  %arvo  %c
+      %warp  ship.u.arg  desk.u.arg  `[%sing %y ud+1 /]
+    ==
+  ::
+  ++  take
+    |=  [=wire =sign-arvo]
+    ^+  ..abet
+    ?>  ?=(^ ota)
+    ?.  (check-ota wire)
+      ..abet
+    ?.  ?=([@ @ @ @ *] wire)
+      ..abet
+    ?+  i.t.t.t.wire  ~&([%strange-ota-take t.t.t.wire] ..abet)
+      %find        (take-find sign-arvo)
+      %sync        (take-sync sign-arvo)
+      %merge-home  (take-merge-home sign-arvo)
+      %merge-kids  (take-merge-kids sign-arvo)
+    ==
+  ::
+  ++  take-find
+    |=  =sign-arvo
+    ?>  ?=(%writ +<.sign-arvo)
+    ?>  ?=(^ ota)
+    =.  ..abet  (render-ket "activated OTA" ~)
+    %:  emit
+      %pass  (make-wire /sync)  %arvo  %c
+      %warp  ship.u.ota  desk.u.ota  `[%sing %w da+now /]
+    ==
+  ::
+  ++  take-sync
+    |=  =sign-arvo
+    ^+  ..abet
+    ?>  ?=(%writ +<.sign-arvo)
+    ?>  ?=(^ ota)
+    ?~  p.sign-arvo
+      =.  ..abet  (render-ket "OTA cancelled, retrying" ~)
+      (poke-internal `[ship desk]:u.ota)
+    =?  aeon.u.ota  ?=($w p.p.u.p.sign-arvo)
+      ud:;;(cass:clay q.q.r.u.p.sign-arvo)
+    =/  =germ
+      =+  .^(=cass:clay %cw /(scot %p our)/home/(scot %da now))
+      ?:  =(0 ud.cass)
+        %init
+      ?:((gth 2 ud.cass) %that %mate)
+    =.  ..abet  (render-ket "beginning OTA to %home" ~)
+    %:  emit
+      %pass  (make-wire /merge-home)  %arvo  %c
+      %merg  %home  ship.u.ota  desk.u.ota  ud+aeon.u.ota  germ
+    ==
+  ::
+  ++  take-merge-home
+    |=  =sign-arvo
+    ?>  ?=(%mere +<.sign-arvo)
+    ?>  ?=(^ ota)
+    ?:  ?=([%| %ali-unavailable *] p.sign-arvo)
+      =.  ..abet
+        =/  =tape  "OTA to %home failed, maybe because sunk; restarting"
+        (render-ket tape `p.p.sign-arvo)
+      (poke-internal `[ship desk]:u.ota)
+    ::
+    ?:  ?=(%| -.p.sign-arvo)
+      =.  ..abet
+        =/  =tape  "OTA to %home failed, waiting for next revision"
+        (render-ket tape `p.p.sign-arvo)
+      =.  aeon.u.ota  +(aeon.u.ota)
+      %:  emit
+        %pass  (make-wire /sync)  %arvo  %c
+        %warp  ship.u.ota  desk.u.ota  `[%sing %y ud+aeon.u.ota /]
+      ==
+    =.  ..abet  (render-ket "OTA to %home succeeded" ~)
+    =.  ..abet  (render-ket "beginning OTA to %kids" ~)
+    =/  =germ
+      =+  .^(=cass:clay %cw /(scot %p our)/kids/(scot %da now))
+      ?:  =(0 ud.cass)
+        %init
+      ?:((gth 2 ud.cass) %that %mate)
+    %:  emit
+      %pass  (make-wire /merge-kids)  %arvo  %c
+      %merg  %kids  ship.u.ota  desk.u.ota  ud+aeon.u.ota  germ
+    ==
+  ::
+  ++  take-merge-kids
+    |=  =sign-arvo
+    ?>  ?=(%mere +<.sign-arvo)
+    ?>  ?=(^ ota)
+    ?:  ?=([%| %ali-unavailable *] p.sign-arvo)
+      =.  ..abet
+        =/  =tape  "OTA to %kids failed, maybe because sunk; restarting"
+        (render-ket tape `p.p.sign-arvo)
+      (poke-internal `[ship desk]:u.ota)
+    ::
+    =.  ..abet
+      ?-  -.p.sign-arvo
+        %&  (render-ket "OTA to %kids succeeded" ~)
+        %|  (render-ket "OTA to %kids failed" `p.p.sign-arvo)
+      ==
+    =.  aeon.u.ota  +(aeon.u.ota)
+    %:  emit
+      %pass  (make-wire /sync)  %arvo  %c
+      %warp  ship.u.ota  desk.u.ota  `[%sing %y ud+aeon.u.ota /]
+    ==
+  --
+::
 ++  poke-sync                                         ::
   |=  hos/kiln-sync
   ?:  (~(has by syn) hos)
@@ -136,6 +294,7 @@
 ++  poke-syncs                                        ::  print sync config
   |=  ~
   =<  abet  %-  spam
+  :-  [%leaf "OTAs from {<ota>}"]
   ?:  =(0 ~(wyt by syn))
     [%leaf "no syncs configured"]~
   %+  turn  ~(tap in ~(key by syn))
@@ -203,6 +362,7 @@
     %kiln-schedule           =;(f (f !<(_+<.f vase)) poke-schedule)
     %kiln-track              =;(f (f !<(_+<.f vase)) poke-track)
     %kiln-sync               =;(f (f !<(_+<.f vase)) poke-sync)
+    %kiln-ota                =;(f (f !<(_+<.f vase)) poke:update)
     %kiln-syncs              =;(f (f !<(_+<.f vase)) poke-syncs)
     %kiln-goad-gall          =;(f (f !<(_+<.f vase)) poke-goad-gall)
     %kiln-unmount            =;(f (f !<(_+<.f vase)) poke-unmount)
@@ -241,6 +401,7 @@
                         ?>(?=(%writ +<.sign-arvo) +>.sign-arvo)
       [%autocommit *]   %+  take-wake-autocommit  t.wire
                         ?>(?=(%wake +<.sign-arvo) +>.sign-arvo)
+      [%ota *]          abet:(take:update t.wire sign-arvo)
       *
     ?+  +<.sign-arvo  ~|([%kiln-bad-take-card +<.sign-arvo] !!)
       %done  %+  done  wire
@@ -388,7 +549,7 @@
   ::
   ++  mere
     |=  mes=(each (set path) (pair term tang))
-    ?:  ?=([%| %bad-fetch-ali *] mes)
+    ?:  ?=([%| %ali-unavailable *] mes)
       =.  +>.$
         %^    spam
             leaf+"merge cancelled, maybe because sunk; restarting"
diff --git a/pkg/arvo/lib/ph/io.hoon b/pkg/arvo/lib/ph/io.hoon
index 3e18f821f2..58400579d8 100644
--- a/pkg/arvo/lib/ph/io.hoon
+++ b/pkg/arvo/lib/ph/io.hoon
@@ -228,8 +228,6 @@
   ;<  ~        bind:m  (mount her desk)
   ;<  our=@p   bind:m  get-our
   ;<  now=@da  bind:m  get-time
-  =/  host-pax
-    (weld /(scot %p our)/home/(scot %da now) pax)
   =/  aqua-pax
     ;:  weld
         /i/(scot %p her)/cx/(scot %p her)/[desk]/(scot %da now)
@@ -240,7 +238,7 @@
     %^  cat  3  '=>  .  '
     %^  cat  3  extra
     (need (scry-aqua:util (unit @) our now aqua-pax))
-  ;<  ~  bind:m  (send-events (insert-file:util her desk host-pax warped))
+  ;<  ~  bind:m  (send-events (insert-files:util her desk [pax warped] ~))
   (pure:m warped)
 ::
 ::  Check /sur/aquarium/hoon on the given has the given contents.
diff --git a/pkg/arvo/lib/ph/util.hoon b/pkg/arvo/lib/ph/util.hoon
index 51a51344c8..c9bd6dc63e 100644
--- a/pkg/arvo/lib/ph/util.hoon
+++ b/pkg/arvo/lib/ph/util.hoon
@@ -45,14 +45,16 @@
 ::
 ::  Inject a file into a ship
 ::
-++  insert-file
-  |=  [who=ship des=desk pax=path txt=@t]
+++  insert-files
+  |=  [who=ship des=desk files=(list [=path txt=@t])]
   ^-  (list aqua-event)
-  ?>  ?=([@ @ @ *] pax)
-  =/  file  [/text/plain (as-octs:mimes:html txt)]
+  =/  input
+    %+  turn  files
+    |=  [=path txt=@t]
+    [path ~ /text/plain (as-octs:mimes:html txt)]
   %+  send-events-to  who
   :~
-    [//sync/0v1n.2m9vh %into des | [t.t.t.pax `file]~]
+    [//sync/0v1n.2m9vh %into des | input]
   ==
 ::
 ::  Checks whether the given event is a dojo output blit containing the
diff --git a/pkg/arvo/sys/arvo.hoon b/pkg/arvo/sys/arvo.hoon
index 59e76cf2c3..f5455f2202 100644
--- a/pkg/arvo/sys/arvo.hoon
+++ b/pkg/arvo/sys/arvo.hoon
@@ -1,7 +1,6 @@
 ::::::  ::::::::::::::::::::::::::::::::::::::::::::::::::::::
 ::::::  ::::::    Postface                              ::::::
 ::::::  ::::::::::::::::::::::::::::::::::::::::::::::::::::::
-!:
 ~>  %slog.[0 leaf+"arvo: assembly"]
 ~<  %slog.[0 leaf+"arvo: assembled"]
 =<  ::
diff --git a/pkg/arvo/sys/vane/clay.hoon b/pkg/arvo/sys/vane/clay.hoon
index 98bdf4a518..e8bdedb0f0 100644
--- a/pkg/arvo/sys/vane/clay.hoon
+++ b/pkg/arvo/sys/vane/clay.hoon
@@ -3671,7 +3671,7 @@
     =/  bem/beam
         ?^  bem
           u.bem
-        [[our %base %ud 1] ~]
+        [[our %home %ud 1] ~]
     =/  dos  (~(get by dos.rom.ruf) q.bem)
     ?~  dos
       !!  ::  fire next in queue
diff --git a/pkg/arvo/sys/vane/dill.hoon b/pkg/arvo/sys/vane/dill.hoon
index 5e9b462511..64d64bbba6 100644
--- a/pkg/arvo/sys/vane/dill.hoon
+++ b/pkg/arvo/sys/vane/dill.hoon
@@ -260,7 +260,7 @@
         [[151 %noun] %j our %sein da+now /(scot %p who)]
       ::
       ++  init                                          ::  initialize
-        (pass /merg/home [%c %merg %home our %base da+now %init])
+        (pass /merg/home [%c %merg %kids our %home da+now %init])
       ::
       ++  mere                                          ::  continue init
         ^+  .
@@ -268,13 +268,11 @@
         =/  can  (clan:title our)
         =.  tem  ~
         =.  +>  (pass / %g %conf ram)
-        =.  +>  (sync %home our %base)
         =?  +>  ?=(?($earl $duke $king) can)
-          (sync %base (sein our) %kids)
-        =?  +>  ?=(?($duke $king $czar) can)
-          ::  make kids desk publicly readable, so syncs work.
-          ::
-          (show %kids):(sync %kids our %base)
+          (ota (sein our) %kids)
+        ::  make kids desk publicly readable, so syncs work.
+        ::
+        =.  +>  (show %kids)
         =.  +>  hood-set-boot-apps
         =.  +>  peer
         |-  ^+  +>+
@@ -284,7 +282,7 @@
       ++  into                                          ::  preinitialize
         |=  gyl/(list gill)
         =.  tem  `(turn gyl |=(a/gill [%yow a]))
-        (pass / [%c %warp our %base `[%sing %y [%ud 1] /]])
+        (pass / [%c %warp our %home `[%sing %y [%ud 1] /]])
       ::
       ++  send                                          ::  send action
         |=  bet/dill-belt
@@ -303,9 +301,9 @@
         |=  des/desk
         (pass /show [%c %perm des / r+`[%black ~]])
       ::
-      ++  sync
-        |=  syn/{desk ship desk}
-        (deal /sync [%poke %hood-sync -:!>(syn) syn])
+      ++  ota
+        |=  syn=[ship desk]
+        (deal /sync %poke %kiln-ota !>(`syn))
       ::
       ++  take                                          ::  receive
         |=  {tea/wire sih/sign}
diff --git a/pkg/arvo/sys/vane/gall.hoon b/pkg/arvo/sys/vane/gall.hoon
index 75fdd3b5d4..7522ba9642 100644
--- a/pkg/arvo/sys/vane/gall.hoon
+++ b/pkg/arvo/sys/vane/gall.hoon
@@ -1,6 +1,7 @@
-!:  ::  %gall, agent execution
+::  ::  %gall, agent execution
 !?  163
-!:
+::
+
 ::::
 |=  pit=vase
 =,  gall
diff --git a/pkg/arvo/ted/ph/child-update.hoon b/pkg/arvo/ted/ph/child-update.hoon
new file mode 100644
index 0000000000..fc0878ad2c
--- /dev/null
+++ b/pkg/arvo/ted/ph/child-update.hoon
@@ -0,0 +1,54 @@
+/-  spider
+/+  *ph-io
+=,  strand=strand:spider
+^-  thread:spider
+|=  vase
+|^
+=/  m  (strand ,vase)
+;<  ~                bind:m  start-simple
+;<  ~                bind:m  (raw-ship ~bud ~)
+;<  ~                bind:m  (raw-ship ~marbud ~)
+;<  [path @t]        bind:m  (modify ~bud %home)
+;<  [=path file=@t]  bind:m  (modify ~bud %kids)
+;<  ~                bind:m  (check-touched ~marbud %kids path file)
+;<  ~                bind:m  end-simple
+(pure:m *vase)
+::
+++  modify
+  |=  [her=@p =desk]
+  =/  m  (strand ,[path @t])
+  ^-  form:m
+  ;<  ~        bind:m  (mount her desk)
+  ;<  our=@p   bind:m  get-our
+  ;<  now=@da  bind:m  get-time
+  |^
+  =/  zuse-contents
+    %^  cat  3  '=/  new-val  57  '
+    (get-val /sys/zuse/hoon)
+  =/  mar-contents
+    %^  cat  3  (get-val /mar/js/hoon)
+    '  ~&  >  new-val=new-val  .'
+  =/  js-contents
+    %^  cat  3  (get-val /app/publish/js/index/js)
+    'extra'
+  =/  files
+    :~  [/sys/zuse/hoon zuse-contents]
+        [/mar/js/hoon mar-contents]
+        [/app/publish/js/index/js js-contents]
+    ==
+  ;<  ~  bind:m  (send-events (insert-files:util her desk files))
+  (pure:m /app/publish/js/index/js js-contents)
+  ::
+  ++  aqua-path
+    |=  =path
+    ;:  weld
+        /i/(scot %p her)/cx/(scot %p her)/[desk]/(scot %da now)
+        path
+        /noun
+    ==
+  ::
+  ++  get-val
+    |=  =path
+    (need (scry-aqua:util (unit @) our now (aqua-path path)))
+  --
+--