diff --git a/Makefile.conf b/Makefile.conf
index 126cc86..5b7890a 100644
--- a/Makefile.conf
+++ b/Makefile.conf
@@ -11,8 +11,8 @@ PYTHON_ARTIFACTS += ./.pytest_cache
 VENV_DIR = ./venv
 
 # Build config Defaults
-DEBUG=0
-PREFIX=
+DEBUG=1
+PREFIX=$(HOME)
 
 ######### Overrides #########
 -include $(HERE)local.conf
diff --git a/pyproject.toml b/pyproject.toml
index a25f0cb..be74ce7 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -5,7 +5,8 @@
 requires =[
         "setuptools >=39.2.0",
         "setuptools_scm >= 4.1.2",
-        "wheel >= 0.35.1" ]
+        "wheel",
+        ]
 
 build-backend = "setuptools.build_meta"
 
diff --git a/setup.cfg b/setup.cfg
index 49115b6..c005c5f 100755
--- a/setup.cfg
+++ b/setup.cfg
@@ -27,14 +27,14 @@ classifiers =
 [options]
 zip_safe = false
 include_package_data = true
-python_requires = >=3.8,<3.9
+python_requires = >=3.7,<3.9
 test_suite = tests
 install_requires =
 # deprecated/redundant with pyproject.toml, but lets keep both ways around for now
 setup_requires =
     setuptools >=39.2.0
     setuptools_scm >= 4.1.2
-    wheel >= 0.35.1
+    wheel
 [options.extras_require]
 # To install these dependencies, run pip install .[test]
 test =
diff --git a/src/pEp/_pEp/pEpmodule.cc b/src/pEp/_pEp/pEpmodule.cc
index 02b9458..b08278c 100644
--- a/src/pEp/_pEp/pEpmodule.cc
+++ b/src/pEp/_pEp/pEpmodule.cc
@@ -161,11 +161,6 @@ namespace pEp {
 //            Adapter::session(release);
         }
 
-        void _inject_sync_shutdown() {
-            pEpLog("injecting null event");
-            Adapter::_queue_sync_event(nullptr,nullptr);
-        }
-
         // TODO: Integrate this (currently SEGFAULTING)
         void _notifyHandshake_sync_start() {
             pEpLog("all targets signal: SYNC_NOTIFY_START");
@@ -251,7 +246,7 @@ namespace pEp {
                 def("_do_protocol_step", _do_protocol_step,
                 "");
 
-                def("_inject_sync_shutdown", _inject_sync_shutdown,
+                def("_inject_sync_shutdown", Adapter::inject_sync_shutdown,
                 "");
 
                 def("_notifyHandshake_sync_start", _notifyHandshake_sync_start,
diff --git a/test/sync_handshake.py b/test/sync_handshake.py
index 45daccb..fa05121 100755
--- a/test/sync_handshake.py
+++ b/test/sync_handshake.py
@@ -45,6 +45,7 @@ inbox = pathlib.Path("..") / "TestInbox"
 device_name = ""
 output = print
 multithreaded = False
+debug_log = False
 
 DONT_TRIGGER_SYNC = 0x200
 SYNC_HANDSHAKE_ACCEPTED = 0
@@ -151,9 +152,10 @@ def shutdown_sync():
 
 
 def run(name, color=None, imap=False, own_ident=1, leave=False):
-
     global device_name
     device_name = name
+
+    pEp.set_debug_log_enabled(debug_log)
     pEp.notify_handshake = this_notifyHandshake
 
     if color:
@@ -250,7 +252,9 @@ if __name__=="__main__":
             dest="leave",
             help="after a successful sync run this to make the device leave the "
             "device group again")
-
+    optParser.add_option("-d", "--debuglog", action="store_true",
+            dest="debug_log",
+            help="print extra verbose pEpPythonAdater debug log")
     options, args = optParser.parse_args()
 
     if not options.exec_for:
@@ -272,4 +276,5 @@ if __name__=="__main__":
         raise ValueError("Multiple own identities not supported for imap mode")        
 
     multithreaded = options.multithreaded
+    debug_log = options.debug_log
     run(options.exec_for, options.color, options.imap, options.own_ident, options.leave)
diff --git a/test/sync_test.py b/test/sync_test.py
index c55f0f3..a4332e3 100755
--- a/test/sync_test.py
+++ b/test/sync_test.py
@@ -22,7 +22,7 @@ import shutil
 import pathlib
 
 
-def test_for(path, color=None, end_on=None, mt=False, imap=False, own_ident=1):
+def test_for(path, color=None, end_on=None, mt=False, imap=False, debuglog=False, own_ident=1):
 
     cwd = os.getcwd();
     os.chdir(path)
@@ -33,7 +33,7 @@ def test_for(path, color=None, end_on=None, mt=False, imap=False, own_ident=1):
     if end_on:
         sync_handshake.end_on = end_on
     sync_handshake.multithreaded = mt
-
+    sync_handshake.debug_log = debuglog
     sync_handshake.run(path, color, imap, own_ident)
 
 
@@ -105,6 +105,9 @@ if __name__ == "__main__":
     optParser.add_option("-A", "--add-account-after-sync", action="store_true",
             dest="add_account",
             help="after sync add an account")
+    optParser.add_option("-d", "--debuglog", action="store_true",
+            dest="debug_log",
+            help="print extra verbose pEpPythonAdater debug log")
 
     options, args = optParser.parse_args()
 
@@ -211,14 +214,14 @@ if __name__ == "__main__":
 
             # Phone runs with own_ident = 2
             Phone = Process(target=test_for, args=("Phone", "red", end_on,
-                options.multithreaded, options.imap, 2))
+                options.multithreaded, options.imap, options.debug_log, 2))
 
             # others run with own_ident = 1
             Laptop = Process(target=test_for, args=("Laptop", "green", end_on,
-                options.multithreaded, options.imap))
+                options.multithreaded, options.imap, options.debug_log))
             if options.third:
                 Pad = Process(target=test_for, args=("Pad", "cyan", end_on,
-                    options.multithreaded, options.imap))
+                    options.multithreaded, options.imap, options.debug_log))
 
             Phone.start()
             Laptop.start()