diff --git a/i/v/vere.h b/i/v/vere.h
index c43e60bc15..d707b9cc57 100644
--- a/i/v/vere.h
+++ b/i/v/vere.h
@@ -294,7 +294,7 @@
       struct _u3_udir;
       struct _u3_ufil;
 
-    /* u3_unod: file or directory.
+    /* u3_unod: in-file or in-directory.
     */
       typedef struct _u3_unod {
         uv_fs_event_t    was_u;             //  stat watcher
@@ -304,7 +304,7 @@
         struct _u3_udir* par_u;             //  in directory
       } u3_unod;
 
-    /* u3_ufil: synchronized file.
+    /* u3_ufil: synchronized in-file.
     */
       typedef struct _u3_ufil {
         uv_fs_event_t    was_u;             //  stat watcher
@@ -317,7 +317,7 @@
         struct _u3_ufil* nex_u;             //  internal list
       } u3_ufil;
 
-    /* u3_udir: synchronized directory.
+    /* u3_udir: synchronized in-directory.
     */
       typedef struct _u3_udir {
         uv_fs_event_t    was_u;             //  stat watcher
@@ -333,7 +333,8 @@
     /* u3_uhot: synchronized host.
     */
       typedef struct _u3_uhot {
-        u3_udir          dir_u;             //  root directory
+        u3_udir          dir_u;             //  in directory
+        c3_c*            dot_u;             //  out directory
         c3_w             who_w[4];          //  owner as words
         struct _u3_uhot* nex_u;             //  internal list
       } u3_uhot;
diff --git a/v/sist.c b/v/sist.c
index 54beee180c..481861dd10 100644
--- a/v/sist.c
+++ b/v/sist.c
@@ -276,6 +276,7 @@ _sist_sing(u3_noun ovo)
 static void
 _sist_home()
 {
+  c3_c    mak_c[2048];
   c3_c    ful_c[2048];
 
   //  Create subdirectories.
@@ -321,7 +322,14 @@ _sist_home()
   //  Copy zod files, if we're generating a carrier.
   //
   if ( u3_Host.ops_u.imp_c ) {
-    snprintf(ful_c, 2048, "cp -r %s/zod %s/%s",
+    snprintf(mak_c, 2048, "mkdir %s/%s",
+                    u3_Host.dir_c, u3_Host.ops_u.imp_c+1);
+    printf("%s\r\n", mak_c);
+    if ( 0 != system(mak_c) ) {
+      uL(fprintf(uH, "could not %s\n", mak_c));
+      u3_lo_bail();
+    }
+    snprintf(ful_c, 2048, "cp -r %s/zod %s/%s/in",
                     U3_LIB, u3_Host.dir_c, u3_Host.ops_u.imp_c+1);
     printf("%s\r\n", ful_c);
     if ( 0 != system(ful_c) ) {
diff --git a/v/unix.c b/v/unix.c
index 5c7343e0fa..495ced8f87 100644
--- a/v/unix.c
+++ b/v/unix.c
@@ -1046,7 +1046,13 @@ _unix_hot_gain(u3_noun who, u3_noun mek)
   u3_noun hox = u3dc("scot", 'p', u3k(who));
   c3_c*   hox_c = u3r_string(hox);
   c3_c*   pax_c = _unix_down(u3_Host.dir_c, hox_c + 1);
+  c3_c*   pin_c = _unix_down(pax_c, "in");
+  c3_c*   pot_c = _unix_down(pax_c, "out");
   DIR*    rid_u = opendir(pax_c);
+  DIR*    rin_u = opendir(pin_c);
+  DIR*    rot_u = opendir(pot_c);
+
+  free(pax_c);
 
   if ( !rid_u ) {
     if ( c3y == mek ) {
@@ -1057,17 +1063,38 @@ _unix_hot_gain(u3_noun who, u3_noun mek)
       return;
     }
   } else closedir(rid_u);
+  if ( !rin_u ) {
+    if ( c3y == mek ) {
+      _unix_mkdir(pin_c);
+    } else {
+      u3z(who);
+      u3z(hox);
+      return;
+    }
+  } else closedir(rin_u);
+  if ( !rot_u ) {
+    if ( c3y == mek ) {
+      _unix_mkdir(pot_c);
+    } else {
+      u3z(who);
+      u3z(hox);
+      return;
+    }
+  } else closedir(rot_u);
 
   // uL(fprintf(uH, "GAIN %s\n", pax_c));
 
   free(hox_c);
   u3z(hox);
-  u3_unix_acquire(pax_c);
+  u3_unix_acquire(pin_c);
 
   {
     u3_uhot* hot_u = c3_malloc(sizeof(u3_uhot));
 
-    _unix_dir_watch(&hot_u->dir_u, 0, pax_c);
+    _unix_dir_watch(&hot_u->dir_u, 0, pin_c);
+
+    hot_u->dot_u = pot_c;
+
     _unix_ship_out(who, hot_u->who_w);
     u3z(who);
 
@@ -1334,7 +1361,7 @@ u3_unix_ef_init(u3_noun who)
   u3v_plan(u3nq(u3_blip, c3__sync, u3k(u3A->sen), u3_nul),
              u3nq(c3__into, who,
                             u3_blip,
-                            u3nt(c3y, u3nc(0, 0), u3_nul)));
+                            u3nt(u3_nul, u3_nul, u3_nul)));
 }
 
 /* u3_unix_ef_ergo(): update filesystem, outbound.
@@ -1411,6 +1438,7 @@ u3_unix_ef_look(void)
         // uL(fprintf(uH, "sync: lose %s\n", hot_u->dir_u.pax_c));
         _unix_hot_lose(hot_u);
 
+        free(hot_u->dot_u);
         free(hot_u);
         continue;
       }