update readme and fix always playing str (#1139)

* update readme deps

* replace assert

* bump timeout

* fix memory corruption in kernel

* use unknown if level name is invalid

game/runtime.cpp

@@ -84,7 +84,7 @@ void deci2_runner(SystemThreadInterface& iface) {
   server.wait_for_protos_ready();
   // then allow the server to accept connections
   if (!server.init()) {
-    assert(false);
+    ASSERT(false);
   }
 
   lg::debug("[DECI2] Waiting for listener...");