Update public-apps/mysterious.livemd

public-apps/mysterious.livemd

@@ -460,8 +460,14 @@ fetcher_pid =
   end
 
 get_first = fn binary ->
-  [head | _tail] = :erlang.binary_to_term(binary)
-  head
+  case byte_size(binary) do
+    0 ->
+      false
+
+    _ ->
+      [head | _tail] = :erlang.binary_to_term(binary)
+      head
+  end
 end
 
 unpack_data = fn data ->
@@ -472,8 +478,14 @@ end
 today_data =
   case loaded_today_data do
     {:no, _} ->
-      first = get_first.(binary)
-      first.data
+      case byte_size(binary) do
+        0 ->
+          ""
+
+        _ ->
+          first = get_first.(binary)
+          first.data
+      end
 
     _ ->
       unpack_data.(loaded_today_data)
@@ -493,4 +505,4 @@ send(message_pid, {:message, random_message})
 Kino.Frame.new(placeholder: false)
 ```
 
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+<!-- livebook:{"offset":11969,"stamp":{"token":"XCP.iIVI4xv_1GYusasCFjEbGmeI2kB0YkVy75HklXNmtEKySH2FCP_-meZfeL92Wb1W-5nHUJ3wUoqecAcQmJ114Z8RvFGkAgF_nzU6m63EhEdNgGuQcLIfhOp__iGeqT5HBvk9","version":2}} -->