diff --git a/.gitignore b/.gitignore
index ce88720..d27e75e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,9 @@ erl_crash.dump
 *.ez
 scopes-*.tar
 tmp/
+/priv/static/assets/
+/priv/static/cache_manifest.json
+/priv/static/docs
 
 log/
 .env
diff --git a/lib/core/environ.ex b/lib/core/environ.ex
index ad8696c..fde85a6 100644
--- a/lib/core/environ.ex
+++ b/lib/core/environ.ex
@@ -10,7 +10,7 @@ defmodule Scopes.Core.Environ do
   def setup({state, proc}, init_seq, proc_env \\ &proc_env/2) do
     env_scope = {%State{init_seq: init_seq}, proc_env, [], self()}
     env = Core.neuron(env_scope)
-    msg = Shape.create([:csys, :zero], data: %{addr: [:csys, :c00, {0, 0}]})
+    msg = Shape.create([:csys, :zero], data: %{addr: [:csys, :c00, "0-0"]})
     proc = {state, proc, [], env}
     Core.create(msg, proc)
     env
diff --git a/lib/core/program.ex b/lib/core/program.ex
index 440aea2..c9115fd 100644
--- a/lib/core/program.ex
+++ b/lib/core/program.ex
@@ -124,10 +124,10 @@ defmodule Scopes.Core.Program do
   # demo init sequences
  
   def init_seq_b1() do 
-    zero = [:csys, :c00, {0, 0}]
-    one = [:csys, :s01, {1, 0}]
-    two = [:csys, :c00, {1, 1}]
-    three = [:csys, :s01, {1, 1}]
+    zero = [:csys, :c00, "0-0"]
+    one = [:csys, :s01, "1-0"]
+    two = [:csys, :c00, "1-1"]
+    three = [:csys, :s01, "1-1"]
     [
       fn state -> 
         Environ.send_message(state, zero, ~w(csys create pred)a, 
@@ -145,16 +145,16 @@ defmodule Scopes.Core.Program do
   end
 
   def init_recursive_1() do 
-    zero = [:csys, :c00, {0, 0}]
+    zero = [:csys, :c00, "0-0"]
     [
       fn state -> 
         Environ.connect(state, zero, zero, negate())
         Environ.send_message(state, zero, ~w(csys create succ)a, 
-          %{addr: [:csys, :e01, {1, 1}]})
+          %{addr: [:csys, :e01, "1-1"]})
       end,
       fn state ->
         Environ.send_message(state, zero, ~w(csys create pred)a,
-          %{addr: [:csys, :s01, {1, 1}]})
+          %{addr: [:csys, :s01, "1-1"]})
       end
     ]
   end
diff --git a/lib/web/server/server.ex b/lib/web/server/server.ex
index 9548c1f..0665cd3 100644
--- a/lib/web/server/server.ex
+++ b/lib/web/server/server.ex
@@ -1,6 +1,6 @@
 defmodule Scopes.Web.Server do
 
-  def static_paths, do: ~w(assets fonts images favicon.ico robots.txt)
+  def static_paths, do: ~w(assets fonts images favicon.ico robots.txt docs)
 
   def router do
     quote do
diff --git a/test/core/core_test.exs b/test/core/core_test.exs
index 183882b..f8238d1 100644
--- a/test/core/core_test.exs
+++ b/test/core/core_test.exs
@@ -19,12 +19,12 @@ defmodule Scopes.CoreTest do
     test "minimal-b1" do
       env = Environ.setup(Program.prepare_basic(), Program.init_seq_b1())
       Process.sleep(50)
-      Environ.forward_value(env, [:csys, :c00, {0, 0}], 0)
+      Environ.forward_value(env, [:csys, :c00, "0-0"], 0)
       assert 0 = receive_data().value
-      Environ.forward_value(env, [:csys, :s01, {1, 0}], 1)
+      Environ.forward_value(env, [:csys, :s01, "1-0"], 1)
       assert receive_data().value == 1
       #assert receive_data().value in [-1, 1]
-      Environ.forward_value(env, [:csys, :s01, {1, 1}], 3)
+      Environ.forward_value(env, [:csys, :s01, "1-1"], 3)
       assert receive_data().value in [2, 3]
       assert receive_data().value in [2, 3]
       refute_receive msg, 30, "unhandled message(s): #{inspect(msg)}"
@@ -33,9 +33,9 @@ defmodule Scopes.CoreTest do
     test "recursive-1" do
       env = Environ.setup(Program.prepare_basic(), Program.init_recursive_1())
       Process.sleep(50)
-      Environ.forward_value(env, [:csys, :s01, {1, 1}], 42)
+      Environ.forward_value(env, [:csys, :s01, "1-1"], 42)
       assert receive_data().value == 42
-      Environ.forward_value(env, [:csys, :s01, {1, 1}], 47)
+      Environ.forward_value(env, [:csys, :s01, "1-1"], 47)
       assert receive_data().value == 5
       refute_receive msg, 30, "unhandled message(s): #{inspect(msg)}"
     end