diff --git a/desk/app/jam-desk.hoon b/desk/app/jam-desk.hoon
index d61a519..3b5cc63 100644
--- a/desk/app/jam-desk.hoon
+++ b/desk/app/jam-desk.hoon
@@ -2,8 +2,12 @@
 /+  webui, rudder, server, dbug, verb, default-agent,
     j=jam-desk
 :: import to force compilation during development
-/=  j-  /mar/jam-desk-0
-/$  jam-to-mime  %jam  %mime
+/=  dj-  /mar/deskjam
+/=  dp-  /mar/deskpack-0
+/=  jt-  /ted/jam-desk-url
+::
+/$  deskpack-0-to-mime  %deskpack-0  %mime
+/$  deskjam-to-deskpack-0  %deskjam  %deskpack-0
 ::
 |%
 +$  state-0   [%0 data]
@@ -137,7 +141,7 @@
     =/  =jam  !<(jam result)
     :_  this
     :~  :*  %pass  /  %agent  [our dap]:bowl  %poke 
-            %jam-desk-action  !>(stage-mapp+(cue-and-clam:jc jam))
+            %jam-desk-action  !>([%stage-mapp (deskjam-to-deskpack-0 jam)])
     ==  ==
   ==
 ::
@@ -147,15 +151,8 @@
 |_  =bowl:gall
 ++  sour  (scot %p our.bowl)
 ++  snow  (scot %da now.bowl)
-++  jam-mark  %jam-desk-0
 ++  desks  .^((set desk) %cd /[sour]/base/[snow])
 ::
-:: ++  jam-to-mime
-::   |=  =beak
-::   .^  $-(@ mime)  %cf
-::     (weld (en-beam beak(q %base) ~) /jam/mime)
-::   ==
-::
 ++  new-desk-card
   |=  [=desk =mapp]
   ^-  card
@@ -200,18 +197,6 @@
 ::
 ++  en-mapp
   |=  [=desk files=(list path)]
-::  ^-  mapp
-::  |^
-::  (~(gas by *mapp) (turn files mage))
-::  ++  mage
-::    |=  file=path
-::    ^-  (pair path page:clay)
-::    :-  file
-::    ^-  page:clay
-::    :-  (rear file)
-::    ~|  [%missing-source-file beak file]
-::    .^(* %cx (weld (en-beam beak ~) file))
-::  --
   ^-  mapp
   =+  .^(=dome:clay %cv /[sour]/[desk]/[snow])
   =/  commit=@ud  ud:.^(cass:clay %cw /[sour]/[desk]/[snow])
@@ -239,9 +224,8 @@
 ++  desk-to-mime
   |=  =desk
   ^-  mime
-  %-  jam-to-mime
-  %-  jam  ^-  (cask)
-  [jam-mark desk (en-mapp-full desk)]
+  %-  deskpack-0-to-mime
+  [desk (en-mapp-full desk)]
 ::
 ++  file-args
   |=  args=(list [k=@t v=@t])
@@ -254,9 +238,8 @@
 ++  subdesk-to-mime
   |=  [=desk files=(list path)]
   ^-  mime
-  %-  jam-to-mime
-  %-  jam  ^-  (cask)
-  [jam-mark desk (en-mapp-part desk files)]
+  %-  deskpack-0-to-mime
+  [desk (en-mapp-part desk files)]
 ::
 ++  simple-desk-jam
   |=  [=eyre-id =desk]
diff --git a/desk/lib/jam-desk.hoon b/desk/lib/jam-desk.hoon
index a0c637d..86ef1f9 100644
--- a/desk/lib/jam-desk.hoon
+++ b/desk/lib/jam-desk.hoon
@@ -1,18 +1,9 @@
 /-  *jam-desk
 /+  multipart
 |_  [our=ship now=time]
-++  en-beak  |=(dap=term /(scot %p our)/[dap]/(scot %da now))
-++  jam-to-mime  .^($-(@ mime) %cf (welp (en-beak %base) /jam/mime))
-++  desks  .^((set desk) %cd (en-beak %base))
-::
-++  cue-and-clam
-  |=  =jam
-  ^-  [desk mapp]
-  =/  =(cask)  ((cask) (cue jam))
-  ?+    p.cask  !!
-      %jam-desk-0
-    (,[desk mapp] q.cask)
-  ==
+++  sour  (scot %p our)
+++  snow  (scot %da now)
+++  desks  .^((set desk) %cd /[sour]/base/[snow])
 :: list to unit
 ::
 ++  lint
@@ -32,7 +23,7 @@
   ?.  =(key n)  ~
   [~ `mold`body:p]
 ::
-++  desk-files  |=(=desk .^((list path) %ct (en-beak desk)))
+++  desk-files  |=(=desk .^((list path) %ct /[sour]/[desk]/[snow]))
 ::
 ++  desk-axal
   |=  =desk
diff --git a/desk/lib/webui.hoon b/desk/lib/webui.hoon
index 75067c0..4e7f6b3 100644
--- a/desk/lib/webui.hoon
+++ b/desk/lib/webui.hoon
@@ -1,5 +1,6 @@
 /-  *jam-desk
 /+  rudder, multipart, w=webui-pages, h=jam-desk
+/$  deskjam-to-deskpack-0  %deskjam  %deskpack-0
 |%
 ++  path-to-term
   |=  =path
@@ -31,7 +32,7 @@
       =/  args=(map @t @t)
         ?~(body ~ (frisk:rudder q.u.body))
       ?~  url=(~(get by args) 'url')  ~
-      url-thread+u.url
+      [%url-thread u.url]
     =/  jam=(unit jam)
       %-  lint:hc
       ^-  (list jam)
@@ -42,7 +43,7 @@
         %file  [~ `jam`body:p]
       ==
     ?~  jam   ~
-    stage-mapp+(cue-and-clam:hc u.jam)
+    [%stage-mapp (deskjam-to-deskpack-0 u.jam)]
   ::
   ++  final
     %+  alert:rudder
diff --git a/desk/lib/webui/pages/download.hoon b/desk/lib/webui/pages/download.hoon
index 894fa53..63eed0f 100644
--- a/desk/lib/webui/pages/download.hoon
+++ b/desk/lib/webui/pages/download.hoon
@@ -39,7 +39,7 @@
               ;td
                 ;a/"/apps/jam-desk/download/{(trip desk)}"
                   =id  "download"
-                  =download  "{(trip desk)}.jam"
+                  =download  "{(trip desk)}.deskjam"
                   =title  "download this file"
                   ; ⬇️
                 ==
diff --git a/desk/lib/webui/pages/index.hoon b/desk/lib/webui/pages/index.hoon
index ef67879..9c6336e 100644
--- a/desk/lib/webui/pages/index.hoon
+++ b/desk/lib/webui/pages/index.hoon
@@ -35,7 +35,7 @@
               ;input
                 =type         "file"
                 =name         "file"
-                =accept       ".jam";
+                =accept       ".deskjam";
             ==
             ;td
               ;button
diff --git a/desk/lib/webui/pages/subset.hoon b/desk/lib/webui/pages/subset.hoon
index ba1bcf6..de279c1 100644
--- a/desk/lib/webui/pages/subset.hoon
+++ b/desk/lib/webui/pages/subset.hoon
@@ -28,7 +28,7 @@
           Select files and folders to jam.
         ==
         ;td
-          ;button(type "submit", download "{(trip desk)}.jam"): download
+          ;button(type "submit", download "{(trip desk)}.deskjam"): download
         ==
       ==
       ;*  folder-hierarchy
diff --git a/desk/mar/deskjam.hoon b/desk/mar/deskjam.hoon
new file mode 100644
index 0000000..fd49f2f
--- /dev/null
+++ b/desk/mar/deskjam.hoon
@@ -0,0 +1,16 @@
+=,  mimes:html
+|_  mud=@
+++  grow
+  |%
+  ++  noun  mud
+  ++  jam   mud
+  ++  mime  [/application/octet-stream (as-octs mud)]
+  --
+++  grab
+  |%
+  ++  noun  @
+  ++  jam   @
+  ++  mime  |=(mim=^mime q.q.mim)
+  --
+++  grad  %mime
+--
diff --git a/desk/mar/deskpack-0.hoon b/desk/mar/deskpack-0.hoon
new file mode 100644
index 0000000..5f6bb98
--- /dev/null
+++ b/desk/mar/deskpack-0.hoon
@@ -0,0 +1,25 @@
+/-  *jam-desk
+=,  mimes:html
+|_  dp=deskpack
+++  grow
+  |%
+  ++  noun      dp
+  ++  deskjam   jam
+  ++  jam       (^jam [%deskpack-0 dp])
+  ++  mime      :-  /application/octet-stream
+                (as-octs:mimes:html jam)
+  --
+++  grab
+  |%
+  ++  noun     deskpack
+  ++  deskjam  jam
+  ++  jam
+    |=  mud=@
+    =/  =(cask)  ;;((cask) (cue mud))
+    ?+  p.cask  ~|([%unknown-deskjam-mark mark=p.cask] !!)
+      %deskpack-0  ;;(deskpack q.cask)
+    ==
+  ++  mime  |=(mim=^mime (jam q.q.mim))
+  --
+++  grad  %noun
+--
diff --git a/desk/mar/jam-desk-0.hoon b/desk/mar/jam-desk-0.hoon
deleted file mode 100644
index fcc0b04..0000000
--- a/desk/mar/jam-desk-0.hoon
+++ /dev/null
@@ -1,12 +0,0 @@
-/-  *jam-desk
-|_  [=desk =mapp]
-++  grow
-  |%
-  ++  noun  [desk mapp]
-  --
-++  grab
-  |%
-  ++  noun  ,[^desk ^mapp]
-  --
-++  grad  %noun
---
diff --git a/desk/mar/jam.hoon b/desk/mar/jam.hoon
index 672941f..7367dd9 100644
--- a/desk/mar/jam.hoon
+++ b/desk/mar/jam.hoon
@@ -10,8 +10,8 @@
   ++  mime  [/application/octet-stream (as-octs mud)]
   --
 ++  grab
-  |%                                                    ::  convert from
-  ++  noun  @                                           ::  clam from %noun
+  |%
+  ++  noun  @
   --
 ++  grad  %mime
 --
diff --git a/desk/sur/jam-desk.hoon b/desk/sur/jam-desk.hoon
index 8179cb9..dd088e1 100644
--- a/desk/sur/jam-desk.hoon
+++ b/desk/sur/jam-desk.hoon
@@ -1,6 +1,7 @@
 |%
 +$  data  [=staged dest=(unit [mode=?(%n %m) =desk])]
 +$  mapp  (map path page:clay)
++$  deskpack  [desk mapp]
 +$  staged
   %-  unit
   $:  =stage=time