diff --git a/MAINTAINERS.md b/MAINTAINERS.md
index 2e2e2746fc..eceb7ebaf8 100644
--- a/MAINTAINERS.md
+++ b/MAINTAINERS.md
@@ -72,20 +72,27 @@ release branch is cut from `develop` and the process begins again.
 
 ### Tagging
 
-If it's a very trivial hotfix that you know isn't going to break anything, tag
-it as `urbit-os-vx.y`.  Here 'x' is the major version and 'y' is an OTA patch
-counter.
+When we branch release to deploy to `~marnec`, we need to tag it as a release candidate (RC), like `urbit-os-vx.y-rc1`.  Here 'x' is the major version and 'y' is an OTA patch counter.  After this any change that goes into release gets a new tag that increments the rc.
 
-Use an annotated tag, i.e.
+After we ship a release to the live network, add a tag that is not a release candidate, like `urbit-os-vx.y`, to the master branch, since that's what was released.
+
+#### Applying the Tag Locally
+
+Use an annotated tag with the `-a` git argument.  Make sure to follow
+the naming convention for RCs and live releases, described above.
+
+
+To add a tag to the local repo, run this:
 
 ```
-git tag -a urbit-os-vx.y
+git tag -a <tagname>
 ```
 
-The tag format should look something like this:
+This will bring up an editor, where you should add the release notes,
+which should look like this:
 
 ```
-urbit-os-vx.y
+<tagname>
 
 This release will be pushed to the network as an over-the-air update.
 
@@ -98,9 +105,17 @@ Contributions:
   [..]
 ```
 
-You can get the "contributions" section by the shortlog between the last release
-and this release:
+To fill in the "contributions" section, copy in the shortlog between the last release and this release, obtained by running this command:
 
 ```
 git shortlog --no-merges LAST_RELEASE..
 ```
+
+#### Pushing the Tag to the Main Repo
+
+Once you have added a tag, push it to the main repository using the
+following command:
+
+```
+git push origin <tagname>
+```
diff --git a/pkg/arvo/app/acme.hoon b/pkg/arvo/app/acme.hoon
index cd2a2a09b4..17ca28d3f5 100644
--- a/pkg/arvo/app/acme.hoon
+++ b/pkg/arvo/app/acme.hoon
@@ -584,10 +584,11 @@
       ~|  [%no-next-domain idx=idx]
       (head (skim pending |=([turf idx=@ud ?] =(idx ^idx))))
     ::  XX should confirm that :turf points to us
-    ::  confirms that domain exists (and an urbit is on :80)
+    ::  confirms that domain exists (and an urbit is on the standard port)
     ::
+    =/  sec=?  p:.^(hart:eyre %e /(scot %p our.bow)/host/(scot %da now.bow))
     =/  =purl
-        :-  [sec=| por=~ host=[%& turf.next]]
+        :-  [sec=sec por=~ host=[%& turf.next]]
         [[ext=~ path=/'~debug'] query=~]
     =/  =wire
       (acme-wire try %validate-domain /idx/(scot %ud idx.next))
@@ -754,9 +755,8 @@
     ?>  ?=(%wake sas.u.rod)
     =*  aut  u.active.aut.u.rod
     =/  pat=path  /'.well-known'/acme-challenge/[tok.cal.aut]
-    ::  note: requires port 80, just as the ACME service will
-    ::
-    =/  url=purl  [[sec=| por=~ hos=[%& dom.aut]] [ext=~ pat] hed=~]
+    =/  sec=?  p:.^(hart:eyre %e /(scot %p our.bow)/host/(scot %da now.bow))
+    =/  url=purl  [[sec=sec por=~ hos=[%& dom.aut]] [ext=~ pat] hed=~]
     ::  =/  url=purl  [[sec=| por=`8.081 hos=[%& /localhost]] [ext=~ pat] hed=~]
     ::  XX idx in wire?
     ::
diff --git a/pkg/arvo/gen/brass.hoon b/pkg/arvo/gen/brass.hoon
index 98c39ec7e7..a80cd5e903 100644
--- a/pkg/arvo/gen/brass.hoon
+++ b/pkg/arvo/gen/brass.hoon
@@ -24,7 +24,7 @@
             rest=(list desk)
         ==
       ::
-        ~
+        prime=_|
     ==
 :-  %pill
 ^-  pill:pill
@@ -39,50 +39,10 @@
     ?~  arg  %base
     ?>(?=(@ base.arg) base.arg)
   /(scot %p p.bec)/[desk]/(scot %da now)/sys
-=/  bas=path
-  (scag 3 sys)
 =/  dez=(list [desk path])
   ?~  arg  ~
   %+  turn  rest.arg
   |=  =desk
   [desk /(scot %p p.bec)/[desk]/(scot %da now)]
 ::
-::  compiler-source: hoon source file producing compiler, `sys/hoon`
-::
-=+  compiler-source=.^(@t %cx (welp sys /hoon/hoon))
-::
-::  compiler-twig: compiler as hoon expression
-::
-~&  %brass-parsing
-=+  compiler-twig=(rain /sys/hoon/hoon compiler-source)
-~&  %brass-parsed
-::
-::  compiler-formula: compiler as nock formula
-::
-~&  %brass-compiling
-=+  compiler-formula=q:(~(mint ut %noun) %noun compiler-twig)
-~&  %brass-compiled
-::
-::  arvo-source: hoon source file producing arvo kernel, `sys/arvo`
-::
-=+  arvo-source=.^(@t %cx (welp sys /arvo/hoon))
-::
-::  boot-ova: startup events
-::
-=/  boot-ova=(list)
-  :~  aeon:eden:part
-      boot:eden:part
-      compiler-formula
-      compiler-source
-      arvo-source
-  ==
-::  a pill is a 3-tuple of event-lists: [boot kernel userspace]
-::
-:+  %pill  %brass
-:+  boot-ova
-  :~  (boot-ovum:pill compiler-source arvo-source)
-      (file-ovum2:pill bas)
-  ==
-%+  turn
-  (snoc dez [%base bas])
-file-ovum:pill
+(brass:pill sys dez prime)
diff --git a/pkg/arvo/gen/ivory.hoon b/pkg/arvo/gen/ivory.hoon
index 6ae9a25048..387ac43f34 100644
--- a/pkg/arvo/gen/ivory.hoon
+++ b/pkg/arvo/gen/ivory.hoon
@@ -17,60 +17,4 @@
 =/  sys=path
   ?^  arg  top.arg
   /(scot %p p.bec)/[q.bec]/(scot %da now)/sys
-=/  lib
-  (welp (flop (tail (flop sys))) /lib)
-::
-|^  =/  ver
-      =/  sub  *(trap vase)
-      =.  sub  (build-sys sub %hoon)
-      =.  sub  (build-sys sub %arvo)
-      =.  sub  (build-sys sub %lull)
-      =.  sub  (build-sys sub %zuse)
-      =.  sub  (build-lib sub & %ethereum)
-      =.  sub  (build-lib sub & %azimuth)
-      (build-lib sub | %vere)
-    =/  nok  !.
-      =>  *[ver=(trap vase) ~]
-      !=  q:$:ver
-    ivory/[nok ver ~]
-::
-++  build-sys
-  |=  [sub=(trap vase) nam=term]  ^-  (trap vase)
-  ~>  %slog.[0 leaf+"ivory: building /sys/{(trip nam)}"]
-  (swat sub (rain /sys/[nam]/hoon .^(@t cx+(welp sys /[nam]/hoon))))
-::
-++  build-lib
-  |=  [sub=(trap vase) imp=? nam=term]  ^-  (trap vase)
-  ~>  %slog.[0 leaf+"ivory: building /lib/{(trip nam)}"]
-  =/  hun=hoon
-    %+  mist  /lib/[nam]/hoon
-    .^(@t cx+(welp lib /[nam]/hoon))
-  ?.  imp  (swat sub hun)
-  (swel sub [%ktts nam hun])
-::  +mist: +rain but skipping past ford runes
-::
-++  mist
-  |=  [bon=path txt=@]
-  ^-  hoon
-  =+  vas=vast
-  ~|  bon
-  %+  scan  (trip txt)
-  %-  full
-  =;  fud
-    (ifix [;~(plug gay fud) gay] tall:vas(wer bon))
-  %-  star
-  ;~  pose  vul
-    %+  ifix  [fas (just `@`10)]
-    (star ;~(less (just `@`10) next))
-  ==
-::  +swel: +swat but with +slop
-::
-++  swel
-  |=  [tap=(trap vase) gen=hoon]
-  ^-  (trap vase)
-  =/  gun  (~(mint ut p:$:tap) %noun gen)
-  =>  [tap=tap gun=gun]
-  |.  ~+
-  =/  pro  q:$:tap
-  [[%cell p.gun p:$:tap] [.*(pro q.gun) pro]]
---
+(ivory:pill sys)
diff --git a/pkg/arvo/gen/solid.hoon b/pkg/arvo/gen/solid.hoon
index cfd54601e3..f98d949480 100644
--- a/pkg/arvo/gen/solid.hoon
+++ b/pkg/arvo/gen/solid.hoon
@@ -28,12 +28,10 @@
         ==
       ::
         dub=_|
+        prime=_|
     ==
 :-  %pill
 ^-  pill:pill
-::  sys: root path to boot system, `/~me/[desk]/now/sys`
-::  bas: root path to boot system' desk
-::  dez: secondary desks and their root paths
 ::
 =/  sys=path
   ?:  ?=([^ *] arg)
@@ -42,84 +40,10 @@
     ?~  arg  %base
     ?>(?=(@ base.arg) base.arg)
   /(scot %p p.bec)/[desk]/(scot %da now)/sys
-=/  bas=path
-  (scag 3 sys)
 =/  dez=(list [desk path])
   ?~  arg  ~
   %+  turn  rest.arg
   |=  =desk
   [desk /(scot %p p.bec)/[desk]/(scot %da now)]
 ::
-=/  compiler-path  (weld sys /hoon)
-=/  arvo-path      (weld sys /arvo)
-~&  %solid-start
-=/  compiler-src  .^(@t %cx (weld compiler-path /hoon))
-=/  arvo-src      .^(@t %cx (weld arvo-path /hoon))
-=/  arvo-formula
-  ~&  %solid-loaded
-  =/  compiler-hoon  (rain compiler-path compiler-src)
-  ?.  dub
-    ::  compile arvo against hoon, with our current compiler
-    ::
-    =/  whole-hoon=hoon
-      [%tsgr compiler-hoon [%tsgr [%$ 7] (rain arvo-path arvo-src)]]
-    ~&  %solid-parsed
-    =/  whole-formula  q:(~(mint ut %noun) %noun whole-hoon)
-    ~&  %solid-arvo
-    whole-formula
-  ::  compile arvo against hoon, with a freshly compiled hoon (via +ride)
-  ::
-  ~&  %solid-parsed
-  =/  compiler-formula  q:(~(mint ut %noun) %noun compiler-hoon)
-  ~&  %solid-compiled
-  =/  whole-src
-    (rap 3 ['=>  ' compiler-src '=>  +7  ' arvo-src ~])
-  ~&  %solid-double-loaded
-  =/  whole-formula
-    =<  +
-    .*  [%noun whole-src]
-    [%8 compiler-formula [%9 2 %10 [6 %0 3] [%0 2]]]
-  ~&  %solid-double-compiled
-  whole-formula
-::
-~&  [%solid-kernel `@ux`(mug arvo-formula)]
-::
-::  installed: Arvo gate (formal interface) with %zuse and vanes installed
-::
-=/  installed
-  =<  q
-  %^    spin
-      ^-  (list ovum)
-      :-  (boot-ovum:pill compiler-src arvo-src)
-      %+  turn
-        (snoc (turn dez tail) bas)
-      file-ovum2:pill
-    .*(0 arvo-formula)
-  |=  [ovo=ovum ken=*]
-  [~ (slum ken [now ovo])]
-::
-::  boot-two: startup formula
-::
-::    We evaluate :arvo-formula (for jet registration),
-::    then ignore the result and produce .installed
-::
-=/  boot-two
-  =>  *[arvo-formula=^ installed=^ tale=*]
-  !=  =+(.*(0 arvo-formula) [installed tale])
-::
-::  boot-ova
-::
-=/  boot-ova=(list)
-  [aeon:eden:part boot-two arvo-formula installed ~]
-::
-::  a pill is a 3-tuple of event-lists: [boot kernel userspace]
-::
-::    Our kernel event-list is ~, as we've already installed them.
-::    Our userspace event-list is a list containing a full %clay
-::    filesystem sync event.
-::
-:+  %pill  %solid
-:+  boot-ova  ~
-%+  turn
-  (snoc dez [%base bas])
-file-ovum:pill
+(solid:pill sys dez dub now prime)
diff --git a/pkg/arvo/lib/dns.hoon b/pkg/arvo/lib/dns.hoon
index cbad20271a..f2891ca399 100644
--- a/pkg/arvo/lib/dns.hoon
+++ b/pkg/arvo/lib/dns.hoon
@@ -36,7 +36,7 @@
   ;<  ~                     bind:m  (backoff:strandio try ~h1)
   ;<  rep=(unit httr:eyre)  bind:m  (hiss-request:strandio hiss)
   ?:  ?&  ?=(^ rep)
-          |(=(200 p.u.rep) =(307 p.u.rep))
+          |(=(200 p.u.rep) =(307 p.u.rep) =(301 p.u.rep))
       ==
     (pure:m &)
   ?.  ?|  ?=(~ rep)
diff --git a/pkg/arvo/lib/hood/helm.hoon b/pkg/arvo/lib/hood/helm.hoon
index 6b29348a26..0c812cbe8e 100644
--- a/pkg/arvo/lib/hood/helm.hoon
+++ b/pkg/arvo/lib/hood/helm.hoon
@@ -1,4 +1,3 @@
-/+  pill
 =*  card  card:agent:gall
 |%
 +$  state  state-2
diff --git a/pkg/arvo/lib/hood/kiln.hoon b/pkg/arvo/lib/hood/kiln.hoon
index 80c5db06c9..e82d8c26e5 100644
--- a/pkg/arvo/lib/hood/kiln.hoon
+++ b/pkg/arvo/lib/hood/kiln.hoon
@@ -1155,11 +1155,18 @@
       ::
       ~>  %slog.(fmt "finished downloading update for {here}")
       =.  let  +(let)
-      ::  If nothing changed, just advance
+      ::  If nothing changed, just ensure %kids is up-to-date and advance
       ::
       ?.  (get-remote-diff our syd now [her sud (dec let)])
-        ~>  %slog.(fmt "remote is identical to {here}, skipping")
-        next
+        =<  next
+        ?~  kid
+          ~>  %slog.(fmt "remote is identical to {here}, skipping")
+          ..abet
+        ?.  (get-remote-diff our u.kid now [her sud (dec let)])
+          ~>  %slog.(fmt "remote is identical to {here}, skipping")
+          ..abet
+        ~>  %slog.(fmt "remote is identical to {here}, merging into {<u.kid>}")
+        (merg /kids u.kid)
       ::  Else start merging, but also immediately start listening to
       ::  the next revision.  Now, all errors should no-op -- we're
       ::  already waiting for the next revision.
@@ -1186,7 +1193,7 @@
       ::
       ?~  kid
         ..abet
-      ~>  %slog.(fmt "kids merge into {<kid>}")
+      ~>  %slog.(fmt "kids merge into {<u.kid>}")
       (merg /kids u.kid)
     ::
         %kids
diff --git a/pkg/arvo/sys/lull.hoon b/pkg/arvo/sys/lull.hoon
index 9bca8c59b5..4708945665 100644
--- a/pkg/arvo/sys/lull.hoon
+++ b/pkg/arvo/sys/lull.hoon
@@ -786,6 +786,7 @@
         [%park des=desk yok=yoki ran=rang]              ::  synchronous commit
         [%perm des=desk pax=path rit=rite]              ::  change permissions
         [%pork ~]                                       ::  resume commit
+        [%prep lat=(map lobe page)]                     ::  prime clay store
         [%rein des=desk ren=rein]                       ::  extra apps
         [%stir arg=*]                                   ::  debug
         [%tire p=(unit ~)]                              ::  app state subscribe
@@ -1177,6 +1178,7 @@
         $>(%init vane-task)                             ::  after gall ready
         [%meld ~]                                       ::  unify memory
         [%pack ~]                                       ::  compact memory
+        [%seat =desk]                                   ::  install desk
         [%shot ses=@tas task=session-task]              ::  task for session
         [%talk p=(list tank)]                           ::  print tanks
         [%text p=tape]                                  ::  print tape
@@ -2527,6 +2529,9 @@
       ::    TODO: make $yuki an option for %into?
       ::
       $>(%park task:clay)
+      ::  %clay: load blob store
+      ::
+      $>(%prep task:clay)
       ::  %eyre: learn ports of live http servers
       ::
       $>(%live task:eyre)
diff --git a/pkg/arvo/sys/vane/clay.hoon b/pkg/arvo/sys/vane/clay.hoon
index f9a6f5954d..abafa0d3c2 100644
--- a/pkg/arvo/sys/vane/clay.hoon
+++ b/pkg/arvo/sys/vane/clay.hoon
@@ -4210,6 +4210,18 @@
     ++  read-s
       |=  [yon=aeon pax=path]
       ^-  (unit (unit cage))
+      ?:  ?=([%bloc ~] pax)
+        :^  ~  ~  %noun
+        :-  -:!>(*(map lobe page))
+        ^-  (map lobe page)
+        %-  %~  rep  in
+            %-  reachable-takos
+            (~(got by hit.dom) let.dom)
+        |=  [t=tako o=(map lobe page)]
+        %-  ~(gas by o)
+        %+  turn
+          ~(val by q:(~(got by hut.ran) t))
+        |=(l=lobe [l (~(got by lat.ran) l)])
       ?.  ?=([@ * *] pax)
         `~
       ?+    i.pax  `~
@@ -4913,6 +4925,9 @@
       =/  den  ((de now rof hen ruf) our syd)
       abet:(park:den & & yoki *rang)
     [mos ..^$]
+  ::
+      %prep
+    [~ ..^$(lat.ran.ruf (~(uni by lat.req) lat.ran.ruf))]
   ::
       %perm
     =^  mos  ruf
diff --git a/pkg/arvo/sys/vane/dill.hoon b/pkg/arvo/sys/vane/dill.hoon
index f58a73bd03..3618e1008f 100644
--- a/pkg/arvo/sys/vane/dill.hoon
+++ b/pkg/arvo/sys/vane/dill.hoon
@@ -107,6 +107,11 @@
           %pack  (dump kyz)
           %crop  (dump trim+p.kyz)
           %verb  (pass /verb %$ kyz)
+        ::
+            %seat
+          %^  pass  /seat  %g
+          :+  %deal   [our our]
+          [%hood %poke %kiln-install !>([desk.kyz our desk.kyz])]
         ==
       ::
       ++  crud
diff --git a/pkg/autoprop/app/autoprop.hoon b/pkg/autoprop/app/autoprop.hoon
new file mode 100644
index 0000000000..a1da6dee2b
--- /dev/null
+++ b/pkg/autoprop/app/autoprop.hoon
@@ -0,0 +1,319 @@
+::  autoprop: make pills & props when desk contents change
+::
+::    auto-build a new .urb/put/latest-solid.pill:
+::      +latest-solid solid %kids %garden
+::
+::    stop auto-building latest-solid:
+::      -latest-solid
+::
+::    auto-build a new .urb/put/somedesk.jam:
+::      +some-desk desk %somedesk
+::
+::    see currently configured build tasks:
+::      ?
+::
+::    run task right now:
+::      !latest-solid
+::
+/+  libpill=pill, shoe, verb, dbug, default-agent
+::
+=,  clay
+::
+|%
++$  state-0
+  $:  %0
+      make=(map @ta [next=(unit @da) =task])            ::  things to make
+      hear=(set desk)                                   ::  observed desks
+      vers=path                                         ::  runtime version
+      sole=sole-id                                      ::  the way out
+  ==
+::
++$  sole-id  sole-id:sole:shoe
+::
++$  task
+  $%  pill
+      prop
+  ==
+::
++$  pill
+  $%  [%ivory base=desk]
+      [%solid base=desk etc=(set desk)]
+      [%brass base=desk etc=(set desk)]
+  ==
+::
++$  prop
+  $%  [%desk =desk]
+  ==
+::
++$  command
+  $%  [%put name=@ta =task]  ::  configure pill build
+      [%del name=@ta]        ::  remove pill build
+      [%see ~]               ::  help & current config
+      [%run name=@ta]        ::  force build
+  ==
+::
++$  card  card:shoe
+::
+++  delay  ~d5
+--
+=|  state-0
+=*  state  -
+::
+%+  verb  |
+%-  agent:dbug
+^-  agent:gall
+%-  (agent:shoe command)
+^-  (shoe:shoe command)
+|_  =bowl:gall
++*  this  .
+    def   ~(. (default-agent this %|) bowl)
+    des   ~(. (default:shoe this command) bowl)
+    rev   rev:.^(vere %$ /(scot %p our.bowl)//(scot %da now.bowl)/zen/ver)
+::
+++  on-init
+  ^-  (quip card _this)
+  :_  this(vers rev)
+  [%pass /vers %arvo %b %wait (add now.bowl ~m5)]~
+::
+++  on-save   !>(state)
+++  on-load
+  |=  old=vase
+  ^-  (quip card _this)
+  [~ this(state !<(state-0 old))]
+::
+++  command-parser
+  |=  =sole-id
+  ^+  |~(nail *(like [? command]))
+  %+  pick
+    (cold [%see ~] wut)
+  |^  ;~  pose
+        (stag %put ;~(plug (ifix [lus ace] sym) ;~(pose pil pro)))
+        ;~(plug (cold %del hep) sym)
+        ;~(plug (cold %run zap) sym)
+      ==
+  ::
+  ++  pil
+    ;~  pose
+      ;~(plug (perk %ivory ~) ;~(pfix ace des))
+      ;~(plug (perk %solid ~) ;~(pfix ace dez))
+      ;~(plug (perk %brass ~) ;~(pfix ace dez))
+    ==
+  ::
+  ++  pro
+    ;~(plug (perk %desk ~) ;~(pfix ace des))
+  ::
+  ++  des
+    ;~(pfix cen sym)
+  ::
+  ++  dez
+    ;~  plug
+      des
+      ;~  pose
+        ;~(pfix ace (cook ~(gas in *(set desk)) (more ace des)))
+        (easy ~)
+      ==
+    ==
+  --
+::
+++  on-command
+  |=  [=sole-id =command]
+  ^-  (quip card _this)
+  ?-  -.command
+      %put
+    =*  task  task.command
+    =/  targ=(set desk)
+      ?-  -.task
+        %ivory            [base.task ~ ~]
+        ?(%solid %brass)  (~(put in etc.task) base.task)
+        %desk             [desk.task ~ ~]
+      ==
+    =/  news  (~(dif in targ) hear)
+    =.  hear  (~(uni in hear) targ)
+    =.  make  (~(put by make) name.command `now.bowl task.command)
+    :_  this
+    %+  turn  ~(tap in news)
+    |=  =desk
+    :+  %pass  /desk/[desk]
+    [%arvo %c %warp our.bowl desk `[%next %z da+now.bowl /]]
+  ::
+      %del
+    ::NOTE  deletion from hear, if necessary, handled in +on-arvo
+    [~ this(make (~(del by make) name.command))]
+  ::
+      %see
+    :_  this
+    ^-  (list card)
+    =-  [%shoe [sole-id]~ %sole %mor -]~
+    ^-  (list sole-effect:shoe)
+    :-  [%txt "to add:  +task-name type %args"]
+    :-  [%txt "         where type is one of: solid, brass, ivory, desk"]
+    :-  [%txt "to del:  -task-name"]
+    :-  [%txt "to run:  !task-name"]
+    ?:  =(~ make)
+      [%txt "no builds configured"]~
+    :-  [%txt "--"]
+    :-  [%txt "builds:"]
+    %+  turn  ~(tap by make)
+    |=  [name=@ta next=(unit @da) =task]
+    :-  %txt
+    %-  trip
+    %+  rap  3
+    :*  name  ' ('
+        ?~(next 'up to date' (scot %da u.next))
+        ') : +'  -.task  ' %'
+      ::
+        ?-  -.task
+          %ivory            [base.task ~]
+          ?(%solid %brass)  :-  base.task
+                            ?:  =(~ etc.task)  ~
+                            [' %' (join ' %' ~(tap in etc.task))]
+          %desk             [desk.task ~]
+    ==  ==
+  ::
+      %run
+    =*  name  name.command
+    =+  (~(got by make) name)
+    :_  =-  this(make (~(jab by make) name -))
+        |=([next=(unit @da) =^task] [~ task])
+    ::TODO  just poke hood instead?
+    =;  sag=sole-effect:shoe
+      :_  ~
+      :+  %shoe  [sole]~
+      :+  %sole  %mor
+      :~  [%txt "{(trip dap.bowl)} built {(trip name)}"]
+          sag
+      ==
+    |^  =*  base  base.task
+        :+  %sag
+          =/  ver=@ta
+            =+  .^(vere %$ /(scot %p our.bowl)//(scot %da now.bowl)/zen/ver)
+            ?.  ?=([%vere @ ~] rev)
+              (rap 3 (join '-' rev))
+            (fall (slaw %ta i.t.rev) i.t.rev)
+          ?-  -.task
+            ?(%solid %brass %ivory)  /[dap.bowl]/[ver]/[name]/pill
+            %desk                    /[dap.bowl]/[ver]/[name]/jam
+          ==
+        ?-  -.task
+          %ivory  (ivory:libpill (sys base))
+        ::
+            ?(%solid %brass)
+          =/  dez=(list [desk path])
+            %+  turn  ~(tap in etc.task)
+            |=(d=desk [d (bek d)])
+          ?-  -.task
+            %solid  (solid:libpill (sys base) dez | now.bowl &)
+            %brass  (brass:libpill (sys base) dez &)
+          ==
+        ::
+            %desk
+          =*  desk  desk.task
+          (install:events:libpill desk (byk desk) &)
+        ==
+    ::
+    ++  sys
+      |=  d=desk
+      `path`(snoc (bek d) %sys)
+    ::
+    ++  byk
+      |=  d=desk
+      `beak`[our.bowl d da+now.bowl]
+    ::
+    ++  bek
+      |=  d=desk
+      `path`(en-beam (byk d) /)
+    --
+  ==
+::
+++  on-arvo
+  |=  [=wire sign=sign-arvo]
+  ^-  (quip card _this)
+  ?:  ?=([%build ~] wire)
+    ::  on-wake, build all tasks whose time has come
+    ::
+    ?>  ?=(%wake +<.sign)
+    =/  tasks=(list @ta)
+      %+  murn  ~(tap by make)
+      |=  [name=@ta next=(unit @da) task]
+      ?~  next  ~
+      ?:((lte u.next now.bowl) (some name) ~)
+    ?^  error.sign
+      ((slog 'on-wake build failed' >tasks< u.error.sign) ~ this)
+    ::
+    =|  cards=(list card)
+    |-
+    ?~  tasks  [cards this]
+    =^  caz  this  (on-command sole %run i.tasks)
+    $(tasks t.tasks, cards (weld cards caz))
+  ::
+  ?:  ?=([%vers ~] wire)
+    ::  on-wake, republish props if we're on a new runtime
+    ::
+    ?>  ?=(%wake +<.sign)
+    =/  next=card
+      [%pass /vers %arvo %b %wait (add now.bowl ~m5)]
+    ?^  error.sign
+      %-  (slog 'on-wake vers failed' u.error.sign)
+      [[next]~ this]
+    ?:  =(rev vers)  [[next]~ this]
+    =/  tasks=(list @ta)  ~(tap in ~(key by make))
+    =|  cards=(list card)
+    |-
+    ?~  tasks  [[next cards] this]
+    =^  caz  this  (on-command sole %run i.tasks)
+    $(tasks t.tasks, cards (weld cards caz))
+  ::
+  ?>  ?=([%desk @ ~] wire)
+  =*  desk  i.t.wire
+  ?.  ?=(%writ +<.sign)
+    ~&  [dap.bowl %unexpected-sign +<.sign]
+    [~ this]
+  ::  on-writ, bump build timers for all affected tasks
+  ::
+  =/  tasks=(list @ta)
+    %+  murn  ~(tap by make)
+    |=  [name=@ta (unit @da) =task]
+    =-  ?:(- (some name) ~)
+    ?-  -.task
+      %ivory            =(desk base.task)
+      ?(%solid %brass)  |(=(desk base.task) (~(has in etc.task) desk))
+      %desk             =(desk desk.task)
+    ==
+  ?:  =(~ tasks)
+    [~ this(hear (~(del in hear) desk))]
+  ::
+  =/  next=@da  (add now.bowl delay)
+  :_  ::  delay next build for affected tasks
+      ::
+      |-  ?~  tasks  this
+      =.  make
+        %+  ~(jab by make)  i.tasks
+        |=([(unit @da) =task] [`next task])
+      $(tasks t.tasks)
+  :~  ::  watch for the next change on this desk
+      ::
+      :+  %pass  /desk/[desk]
+      [%arvo %c %warp our.bowl desk `[%next %z da+now.bowl /]]
+    ::
+      ::  set a timer for building affected tasks
+      ::
+      [%pass /build %arvo %b %wait next]
+  ==
+::
+++  on-connect
+  |=  =sole-id
+  ^-  (quip card _this)
+  ::TODO  actually should just poke drum to write
+  [~ this(sole sole-id)]
+::
+++  can-connect     |=(* =(src our):bowl)
+++  on-disconnect   on-disconnect:des
+++  tab-list        tab-list:des
+::
+++  on-poke   on-poke:def
+++  on-watch  on-watch:def
+++  on-leave  on-leave:def
+++  on-peek   on-peek:def
+++  on-agent  on-agent:def
+++  on-fail   on-fail:def
+--
diff --git a/pkg/autoprop/desk.bill b/pkg/autoprop/desk.bill
new file mode 100644
index 0000000000..c5030c486f
--- /dev/null
+++ b/pkg/autoprop/desk.bill
@@ -0,0 +1,3 @@
+:~  %autoprop
+==
+
diff --git a/pkg/autoprop/lib/dbug.hoon b/pkg/autoprop/lib/dbug.hoon
new file mode 120000
index 0000000000..04f6855f78
--- /dev/null
+++ b/pkg/autoprop/lib/dbug.hoon
@@ -0,0 +1 @@
+../../base-dev/lib/dbug.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/lib/default-agent.hoon b/pkg/autoprop/lib/default-agent.hoon
new file mode 120000
index 0000000000..698f6802d4
--- /dev/null
+++ b/pkg/autoprop/lib/default-agent.hoon
@@ -0,0 +1 @@
+../../base-dev/lib/default-agent.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/lib/dice.hoon b/pkg/autoprop/lib/dice.hoon
new file mode 120000
index 0000000000..60d435d3ab
--- /dev/null
+++ b/pkg/autoprop/lib/dice.hoon
@@ -0,0 +1 @@
+../../arvo/lib/dice.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/lib/ethereum.hoon b/pkg/autoprop/lib/ethereum.hoon
new file mode 120000
index 0000000000..96b5f11e63
--- /dev/null
+++ b/pkg/autoprop/lib/ethereum.hoon
@@ -0,0 +1 @@
+../../arvo/lib/ethereum.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/lib/language-server/complete.hoon b/pkg/autoprop/lib/language-server/complete.hoon
new file mode 120000
index 0000000000..219d824c7b
--- /dev/null
+++ b/pkg/autoprop/lib/language-server/complete.hoon
@@ -0,0 +1 @@
+../../../base-dev/lib/language-server/complete.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/lib/language-server/parser.hoon b/pkg/autoprop/lib/language-server/parser.hoon
new file mode 120000
index 0000000000..327e1a5de6
--- /dev/null
+++ b/pkg/autoprop/lib/language-server/parser.hoon
@@ -0,0 +1 @@
+../../../base-dev/lib/language-server/parser.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/lib/naive.hoon b/pkg/autoprop/lib/naive.hoon
new file mode 120000
index 0000000000..f2d1d3a913
--- /dev/null
+++ b/pkg/autoprop/lib/naive.hoon
@@ -0,0 +1 @@
+../../arvo/lib/naive.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/lib/pill.hoon b/pkg/autoprop/lib/pill.hoon
new file mode 120000
index 0000000000..41e912cf19
--- /dev/null
+++ b/pkg/autoprop/lib/pill.hoon
@@ -0,0 +1 @@
+../../base-dev/lib/pill.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/lib/shoe.hoon b/pkg/autoprop/lib/shoe.hoon
new file mode 120000
index 0000000000..a4aab1dd76
--- /dev/null
+++ b/pkg/autoprop/lib/shoe.hoon
@@ -0,0 +1 @@
+../../base-dev/lib/shoe.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/lib/skeleton.hoon b/pkg/autoprop/lib/skeleton.hoon
new file mode 120000
index 0000000000..77626a3276
--- /dev/null
+++ b/pkg/autoprop/lib/skeleton.hoon
@@ -0,0 +1 @@
+../../base-dev/lib/skeleton.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/lib/sole.hoon b/pkg/autoprop/lib/sole.hoon
new file mode 120000
index 0000000000..f776890f23
--- /dev/null
+++ b/pkg/autoprop/lib/sole.hoon
@@ -0,0 +1 @@
+../../base-dev/lib/sole.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/lib/tiny.hoon b/pkg/autoprop/lib/tiny.hoon
new file mode 120000
index 0000000000..1d319d2094
--- /dev/null
+++ b/pkg/autoprop/lib/tiny.hoon
@@ -0,0 +1 @@
+../../arvo/lib/tiny.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/lib/verb.hoon b/pkg/autoprop/lib/verb.hoon
new file mode 120000
index 0000000000..939072347e
--- /dev/null
+++ b/pkg/autoprop/lib/verb.hoon
@@ -0,0 +1 @@
+../../base-dev/lib/verb.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/mar/bill.hoon b/pkg/autoprop/mar/bill.hoon
new file mode 120000
index 0000000000..801d99730d
--- /dev/null
+++ b/pkg/autoprop/mar/bill.hoon
@@ -0,0 +1 @@
+../../base-dev/mar/bill.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/mar/hoon.hoon b/pkg/autoprop/mar/hoon.hoon
new file mode 120000
index 0000000000..95f8f67f9e
--- /dev/null
+++ b/pkg/autoprop/mar/hoon.hoon
@@ -0,0 +1 @@
+../../base-dev/mar/hoon.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/mar/kelvin.hoon b/pkg/autoprop/mar/kelvin.hoon
new file mode 120000
index 0000000000..195ebe0dc0
--- /dev/null
+++ b/pkg/autoprop/mar/kelvin.hoon
@@ -0,0 +1 @@
+../../base-dev/mar/kelvin.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/mar/mime.hoon b/pkg/autoprop/mar/mime.hoon
new file mode 120000
index 0000000000..0d85898f37
--- /dev/null
+++ b/pkg/autoprop/mar/mime.hoon
@@ -0,0 +1 @@
+../../base-dev/mar/mime.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/mar/noun.hoon b/pkg/autoprop/mar/noun.hoon
new file mode 120000
index 0000000000..97cc308763
--- /dev/null
+++ b/pkg/autoprop/mar/noun.hoon
@@ -0,0 +1 @@
+../../base-dev/mar/noun.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/mar/ship.hoon b/pkg/autoprop/mar/ship.hoon
new file mode 120000
index 0000000000..72de2c03c1
--- /dev/null
+++ b/pkg/autoprop/mar/ship.hoon
@@ -0,0 +1 @@
+../../base-dev/mar/ship.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/mar/txt-diff.hoon b/pkg/autoprop/mar/txt-diff.hoon
new file mode 120000
index 0000000000..1f7c042850
--- /dev/null
+++ b/pkg/autoprop/mar/txt-diff.hoon
@@ -0,0 +1 @@
+../../base-dev/mar/txt-diff.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/mar/txt.hoon b/pkg/autoprop/mar/txt.hoon
new file mode 120000
index 0000000000..4325415754
--- /dev/null
+++ b/pkg/autoprop/mar/txt.hoon
@@ -0,0 +1 @@
+../../base-dev/mar/txt.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/sur/dice.hoon b/pkg/autoprop/sur/dice.hoon
new file mode 120000
index 0000000000..454af0e29b
--- /dev/null
+++ b/pkg/autoprop/sur/dice.hoon
@@ -0,0 +1 @@
+../../arvo/sur/dice.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/sur/language-server.hoon b/pkg/autoprop/sur/language-server.hoon
new file mode 120000
index 0000000000..a1c7267805
--- /dev/null
+++ b/pkg/autoprop/sur/language-server.hoon
@@ -0,0 +1 @@
+../../base-dev/sur/language-server.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/sur/sole.hoon b/pkg/autoprop/sur/sole.hoon
new file mode 120000
index 0000000000..8cac118917
--- /dev/null
+++ b/pkg/autoprop/sur/sole.hoon
@@ -0,0 +1 @@
+../../base-dev/sur/sole.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/sur/verb.hoon b/pkg/autoprop/sur/verb.hoon
new file mode 120000
index 0000000000..1a6100d9ce
--- /dev/null
+++ b/pkg/autoprop/sur/verb.hoon
@@ -0,0 +1 @@
+../../base-dev/sur/verb.hoon
\ No newline at end of file
diff --git a/pkg/autoprop/sys.kelvin b/pkg/autoprop/sys.kelvin
new file mode 100644
index 0000000000..5bd0cc68f8
--- /dev/null
+++ b/pkg/autoprop/sys.kelvin
@@ -0,0 +1 @@
+[%zuse 415]
diff --git a/pkg/base-dev/lib/pill.hoon b/pkg/base-dev/lib/pill.hoon
index 1f6993fb6e..4b07f57c63 100644
--- a/pkg/base-dev/lib/pill.hoon
+++ b/pkg/base-dev/lib/pill.hoon
@@ -64,7 +64,11 @@
              %-  ~(gas by *(map path (each page lobe:clay)))
              (turn hav |=([=path =page] [path &+page]))
            [/c/sync [%park des &+yuki *rang:clay]]
-  =|  hav=(list [path page])
+  (file-pages bas sal)
+::
+++  file-pages
+  |=  [bas=path sal=(list spur)]
+  =|  hav=(list [path page:clay])
   |-  ^+  hav
   ?~  sal  ~
   =.  hav  $(sal t.sal)
@@ -97,6 +101,16 @@
 ::
 ++  file-ovum2  |=(p=path `unix-event`[//arvo what/(user-files p)])
 ::
+++  prep-ovum
+  |=  dez=(list path)
+  ^-  unix-event
+  =-  ~&  clay-blobs+~(wyt by -)
+      [/c/inflate [%prep -]]
+  %+  roll  dez
+  |=  [bas=path out=(map lobe:clay page:clay)]
+  %-  ~(uni by out)
+  .^(_out %cs (snoc bas %bloc))
+::
 ::  +user-files: all userspace hoon files
 ::
 ++  user-files
@@ -135,4 +149,218 @@
   |-  ^+   hav
   ?~  all  hav
   $(all t.all, hav ^$(tyl [p.i.all tyl]))
+::
+::TODO  include %prep task in solid and brass?
+++  solid
+  ::  sys: root path to boot system, `/~me/[desk]/now/sys`
+  ::  dez: secondary desks and their root paths
+  ::
+  |=  [sys=path dez=(list [desk path]) dub=? now=@da prime=?]
+  ^-  pill
+  =/  bas=path       (scag 3 sys)
+  =/  compiler-path  (weld sys /hoon)
+  =/  arvo-path      (weld sys /arvo)
+  ~&  %solid-start
+  =/  compiler-src  .^(@t %cx (weld compiler-path /hoon))
+  =/  arvo-src      .^(@t %cx (weld arvo-path /hoon))
+  =/  arvo-formula
+    ~&  %solid-loaded
+    =/  compiler-hoon  (rain compiler-path compiler-src)
+    ?.  dub
+      ::  compile arvo against hoon, with our current compiler
+      ::
+      =/  whole-hoon=hoon
+        [%tsgr compiler-hoon [%tsgr [%$ 7] (rain arvo-path arvo-src)]]
+      ~&  %solid-parsed
+      =/  whole-formula  q:(~(mint ut %noun) %noun whole-hoon)
+      ~&  %solid-arvo
+      whole-formula
+    ::  compile arvo against hoon, with a freshly compiled hoon (via +ride)
+    ::
+    ~&  %solid-parsed
+    =/  compiler-formula  q:(~(mint ut %noun) %noun compiler-hoon)
+    ~&  %solid-compiled
+    =/  whole-src
+      (rap 3 ['=>  ' compiler-src '=>  +7  ' arvo-src ~])
+    ~&  %solid-double-loaded
+    =/  whole-formula
+      =<  +
+      .*  [%noun whole-src]
+      [%8 compiler-formula [%9 2 %10 [6 %0 3] [%0 2]]]
+    ~&  %solid-double-compiled
+    whole-formula
+  ::
+  ~&  [%solid-kernel `@ux`(mug arvo-formula)]
+  ::
+  ::  installed: Arvo gate (formal interface) with %zuse and vanes installed
+  ::
+  =/  installed
+    =<  q
+    %^    spin
+        ^-  (list ovum)
+        :-  (boot-ovum:pill compiler-src arvo-src)
+        %+  turn
+          (snoc (turn dez tail) bas)
+        file-ovum2:pill
+      .*(0 arvo-formula)
+    |=  [ovo=ovum ken=*]
+    [~ (slum ken [now ovo])]
+  ::
+  ::  boot-two: startup formula
+  ::
+  ::    We evaluate :arvo-formula (for jet registration),
+  ::    then ignore the result and produce .installed
+  ::
+  =/  boot-two
+    =>  *[arvo-formula=^ installed=^ tale=*]
+    !=  =+(.*(0 arvo-formula) [installed tale])
+  ::
+  ::  boot-ova
+  ::
+  =/  boot-ova=(list)
+    [aeon:eden:part boot-two arvo-formula installed ~]
+  ::
+  ::  a pill is a 3-tuple of event-lists: [boot kernel userspace]
+  ::
+  ::    Our kernel event-list is ~, as we've already installed them.
+  ::    Our userspace event-list is a list containing a full %clay
+  ::    filesystem sync event.
+  ::
+  :+  %pill  %solid
+  :+  boot-ova  ~
+  =.  dez  (snoc dez [%base bas])
+  %+  weld
+    (turn dez file-ovum)
+  ?.  prime  ~
+  [(prep-ovum (turn dez tail))]~
+::
+++  brass
+  ::  sys: root path to boot system, `/~me/[desk]/now/sys`
+  ::  dez: secondary desks and their root paths
+  ::
+  |=  [sys=path dez=(list [desk path]) prime=?]
+  ^-  pill
+  =/  bas=path  (scag 3 sys)
+  ::  compiler-source: hoon source file producing compiler, `sys/hoon`
+  ::
+  =+  compiler-source=.^(@t %cx (welp sys /hoon/hoon))
+  ::
+  ::  compiler-twig: compiler as hoon expression
+  ::
+  ~&  %brass-parsing
+  =+  compiler-twig=(rain /sys/hoon/hoon compiler-source)
+  ~&  %brass-parsed
+  ::
+  ::  compiler-formula: compiler as nock formula
+  ::
+  ~&  %brass-compiling
+  =+  compiler-formula=q:(~(mint ut %noun) %noun compiler-twig)
+  ~&  %brass-compiled
+  ::
+  ::  arvo-source: hoon source file producing arvo kernel, `sys/arvo`
+  ::
+  =+  arvo-source=.^(@t %cx (welp sys /arvo/hoon))
+  ::
+  ::  boot-ova: startup events
+  ::
+  =/  boot-ova=(list)
+    :~  aeon:eden:part
+        boot:eden:part
+        compiler-formula
+        compiler-source
+        arvo-source
+    ==
+  ::  a pill is a 3-tuple of event-lists: [boot kernel userspace]
+  ::
+  :+  %pill  %brass
+  :+  boot-ova
+    :~  (boot-ovum:pill compiler-source arvo-source)
+        (file-ovum2:pill bas)
+    ==
+  =.  dez  (snoc dez [%base bas])
+  %+  weld
+    (turn dez file-ovum)
+  ?.  prime  ~
+  [(prep-ovum (turn dez tail))]~
+::
+++  ivory
+  |=  sys=path
+  ^-  pill
+  =/  lib  (snoc (scag 3 sys) %lib)
+  |^  =/  ver
+        =/  sub  *(trap vase)
+        =.  sub  (build-sys sub %hoon)
+        =.  sub  (build-sys sub %arvo)
+        =.  sub  (build-sys sub %lull)
+        =.  sub  (build-sys sub %zuse)
+        =.  sub  (build-lib sub & %ethereum)
+        =.  sub  (build-lib sub & %azimuth)
+        (build-lib sub | %vere)
+      =/  nok  !.
+        =>  *[ver=(trap vase) ~]
+        !=  q:$:ver
+      ivory/[nok ver ~]
+  ::
+  ++  build-sys
+    |=  [sub=(trap vase) nam=term]  ^-  (trap vase)
+    ~>  %slog.[0 leaf+"ivory: building /sys/{(trip nam)}"]
+    (swat sub (rain /sys/[nam]/hoon .^(@t cx+(welp sys /[nam]/hoon))))
+  ::
+  ++  build-lib
+    |=  [sub=(trap vase) imp=? nam=term]  ^-  (trap vase)
+    ~>  %slog.[0 leaf+"ivory: building /lib/{(trip nam)}"]
+    =/  hun=hoon
+      %+  mist  /lib/[nam]/hoon
+      .^(@t cx+(welp lib /[nam]/hoon))
+    ?.  imp  (swat sub hun)
+    (swel sub [%ktts nam hun])
+  ::  +mist: +rain but skipping past ford runes
+  ::
+  ++  mist
+    |=  [bon=path txt=@]
+    ^-  hoon
+    =+  vas=vast
+    ~|  bon
+    %+  scan  (trip txt)
+    %-  full
+    =;  fud
+      (ifix [;~(plug gay fud) gay] tall:vas(wer bon))
+    %-  star
+    ;~  pose  vul
+      %+  ifix  [fas (just `@`10)]
+      (star ;~(less (just `@`10) next))
+    ==
+  ::  +swel: +swat but with +slop
+  ::
+  ++  swel
+    |=  [tap=(trap vase) gen=hoon]
+    ^-  (trap vase)
+    =/  gun  (~(mint ut p:$:tap) %noun gen)
+    =>  [tap=tap gun=gun]
+    |.  ~+
+    =/  pro  q:$:tap
+    [[%cell p.gun p:$:tap] [.*(pro q.gun) pro]]
+  --
+::
+++  events
+  |%
+  +$  prop  [%prop meta tier (list ovum)]
+  +$  meta  term
+  +$  tier  ?(%fore %hind)  ::  before or after userspace
+  ::
+  ++  install
+    |=  [as=desk =beak pri=?]
+    ^-  prop
+    :^  %prop  (rap 3 %install '-' as ~)  %hind
+    ::TODO  will exclude non-:directories files, such as /changelog/txt
+    =-  (murn - same)
+    ^-  (list (unit ovum))
+    :~  `(file-ovum as (en-beam beak /))
+      ::
+        ?.  pri  ~
+        `(prep-ovum (en-beam beak /) ~)
+      ::
+        `[/d/install/[as] [%seat as]]
+    ==
+  --
 --