diff --git a/make-linux.mk b/make-linux.mk
index b6fe0d2..b9c91be 100644
--- a/make-linux.mk
+++ b/make-linux.mk
@@ -168,6 +168,10 @@ INCLUDES+=-Iext/lwip/src/include/lwip \
 	-Iext
 endif
 
+ifeq ($(NO_STACK),1)
+CXXFLAGS+=-DNO_STACK
+endif
+
 all: 
 
 ##############################################################################
diff --git a/make-mac.mk b/make-mac.mk
index 9bb4bfb..7f444ce 100644
--- a/make-mac.mk
+++ b/make-mac.mk
@@ -164,6 +164,10 @@ INCLUDES+=-Iext/lwip/src/include/lwip \
 	-Iext
 endif
 
+ifeq ($(NO_STACK),1)
+CXXFLAGS+=-DNO_STACK
+endif
+
 all: 
 
 ##############################################################################
diff --git a/src/Connection.hpp b/src/Connection.hpp
index e76df1d..cc462d7 100644
--- a/src/Connection.hpp
+++ b/src/Connection.hpp
@@ -32,15 +32,12 @@
 #include <ctime>
 #include <sys/socket.h>
 
-// picoTCP
 #if defined(STACK_PICO)
-	#include "pico_socket.h"
+#include "pico_socket.h"
 #endif
 
-// ZT
 #include "Phy.hpp"
 
-// SDK
 #include "libzt.h"
 #include "SocketTap.hpp"
 #include "RingBuffer.hpp"
@@ -82,7 +79,6 @@ namespace ZeroTier {
 		std::time_t closure_ts;
 
 		Connection() {
-
 			TXbuf = new RingBuffer<unsigned char>(ZT_TCP_TX_BUF_SZ);
 			RXbuf = new RingBuffer<unsigned char>(ZT_TCP_RX_BUF_SZ);
 
@@ -96,27 +92,12 @@ namespace ZeroTier {
 			}
 			sdk_fd = fdpair[0];
 			app_fd = fdpair[1];
-			//DEBUG_ERROR("sdk_fd = %d, app_fd = %d", sdk_fd, app_fd);
-
-/*
-			if(ZT_SOCK_BEHAVIOR_LINGER) {
-				struct linger so_linger;
-				so_linger.l_onoff = true;
-				so_linger.l_linger = ZT_SOCK_BEHAVIOR_LINGER_TIME;
-		        if(setsockopt(app_fd, SOL_SOCKET, SO_LINGER, &so_linger, sizeof so_linger) < 0) {
-    				DEBUG_ERROR("error setsockopt (%d)", errno);
-		        }
-		    }
-*/
-		}
-		~Connection()
-		{
-			// DEBUG_INFO("~Connection() this = %p", this);
 		}
+		~Connection() { }
 	};
 
 	/*
-	 * A helper object for passing SocketTaps and Connections through the stack
+	 * A helper object for passing SocketTap(s) and Connection(s) through the stack
 	 */
 	struct ConnectionPair
 	{
diff --git a/src/README.md b/src/README.md
deleted file mode 100644
index 67d098f..0000000
--- a/src/README.md
+++ /dev/null
@@ -1,2 +0,0 @@
-src
-======
\ No newline at end of file
diff --git a/src/Utilities.cpp b/src/Utilities.cpp
index fc8fe21..1a0a14a 100644
--- a/src/Utilities.cpp
+++ b/src/Utilities.cpp
@@ -24,21 +24,4 @@
  * of your own application.
  */
 
-#include <stdio.h>
-#include <execinfo.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <errno.h>
-
-/*
-void zt_dump_stacktrace(int sig) {
-  void *array[16];
-  size_t size;
-  size = backtrace(array, 16);
-  fprintf(stderr, "Error: signal %d:\n", sig);
-  backtrace_symbols_fd(array, size, STDERR_FILENO);
-  exit(1);
-}
-*/
+// Intentionally left blank
diff --git a/src/Utilities.hpp b/src/Utilities.hpp
index 124aea6..f9e89d0 100644
--- a/src/Utilities.hpp
+++ b/src/Utilities.hpp
@@ -27,11 +27,6 @@
 #ifndef UTILITIES_HPP
 #define UTILITIES_HPP
 
-/*
- * Print a stacktrace
- */
-// void zt_dump_stacktrace(int sig);
-
 #if defined(STACK_LWIP) && defined(LIBZT_IPV4)
 
 #include "lwip/ip_addr.h"
@@ -53,6 +48,6 @@ inline ip_addr_t convert_ip(struct sockaddr_in * addr)
   return conn_addr;
 }
 
-#endif
+#endif // STACK_LWIP && LIBZT_IPV4
 
-#endif
\ No newline at end of file
+#endif // UTILITIES_HPP
\ No newline at end of file
diff --git a/src/lwIP.cpp b/src/lwIP.cpp
index a9b1c64..8e107ac 100644
--- a/src/lwIP.cpp
+++ b/src/lwIP.cpp
@@ -29,8 +29,8 @@
 #include "libzt.h"
 #include "SocketTap.hpp"
 #include "Utilities.hpp"
-
 #include "lwIP.hpp"
+
 #include "netif/ethernet.h"
 #include "lwip/etharp.h"
 
diff --git a/src/picoTCP.cpp b/src/picoTCP.cpp
index c336529..043e762 100644
--- a/src/picoTCP.cpp
+++ b/src/picoTCP.cpp
@@ -26,7 +26,6 @@
 
 #include <ctime>
 
-// picoTCP
 #include "pico_eth.h"
 #include "pico_stack.h"
 #include "pico_ipv4.h"
@@ -37,14 +36,12 @@
 #include "pico_device.h"
 #include "pico_ipv6.h"
 
-// SDK
 #include "libzt.h"
 #include "Utilities.hpp"
 #include "SocketTap.hpp"
 #include "picoTCP.hpp"
 #include "RingBuffer.hpp"
 
-// ZT
 #include "Utils.hpp"
 #include "OSUtils.hpp"
 #include "Mutex.hpp"
diff --git a/test/generate_test_env.sh b/test/generate_test_env.sh
index bd50121..6146303 100755
--- a/test/generate_test_env.sh
+++ b/test/generate_test_env.sh
@@ -1,15 +1,20 @@
 #!/bin/bash
 
 # create dirs to house the identities/config
-mkdir -p test_identities
-mkdir test_identities/alice
-mkdir test_identities/bob
+mkdir alice
+mkdir bob
+mkdir ted 
+mkdir carol
 
 # generate identities
-zerotier-one test_identities/alice -d
-echo $! >> "test_identities/zto.alice"
-zerotier-one test_identities/bob -d
-echo $! >> "test_identities/zto.bob"
+zerotier-one alice -d
+echo $! >> "zto.alice"
+zerotier-one bob -d
+echo $! >> "zto.bob"
+zerotier-one ted -d
+echo $! >> "zto.ted"
+zerotier-one carol -d
+echo $! >> "zto.carol"
 
 # should be done by now
 sleep(30)
@@ -17,7 +22,11 @@ sleep(30)
 # kill daemons
 echo "killing daemons"
 
-pid=$(cat test_identities/alice/zto.alice)
+pid=$(cat alice/zto.alice)
 kill -9 $pid
-pid=$(cat test_identities/bob/zto.bob)
+pid=$(cat bob/zto.bob)
+kill -9 $pid
+pid=$(cat ted/zto.ted)
+kill -9 $pid
+pid=$(cat carol/zto.carol)
 kill -9 $pid
\ No newline at end of file