--- a/sat/core/sat_main.py	Tue Nov 30 23:31:09 2021 +0100
+++ b/sat/core/sat_main.py	Wed Dec 01 16:13:31 2021 +0100
@@ -58,6 +58,7 @@
 log = getLogger(__name__)
 
 class SAT(service.Service):
+
     def _init(self):
         # we don't use __init__ to avoid doule initialisation with twistd
         # this _init is called in startService
@@ -80,7 +81,7 @@
 
         self.memory = memory.Memory(self)
 
-        # trigger are used to change SàT behaviour
+        # trigger are used to change Libervia behaviour
         self.trigger = (
             trigger.TriggerManager()
         )
@@ -92,14 +93,53 @@
 
         bridge_module = dynamic_import.bridge(bridge_name)
         if bridge_module is None:
-            log.error("Can't find bridge module of name {}".format(bridge_name))
+            log.error(f"Can't find bridge module of name {bridge_name}")
             sys.exit(1)
-        log.info("using {} bridge".format(bridge_name))
+        log.info(f"using {bridge_name} bridge")
         try:
             self.bridge = bridge_module.Bridge()
         except exceptions.BridgeInitError:
-            log.error("Bridge can't be initialised, can't start SàT core")
+            log.error("Bridge can't be initialised, can't start Libervia Backend")
             sys.exit(1)
+
+        defer.ensureDeferred(self._postInit())
+
+    @property
+    def version(self):
+        """Return the short version of Libervia"""
+        return C.APP_VERSION
+
+    @property
+    def full_version(self):
+        """Return the full version of Libervia
+
+        In developement mode, release name and extra data are returned too
+        """
+        version = self.version
+        if version[-1] == "D":
+            # we are in debug version, we add extra data
+            try:
+                return self._version_cache
+            except AttributeError:
+                self._version_cache = "{} « {} » ({})".format(
+                    version, C.APP_RELEASE_NAME, utils.getRepositoryData(sat)
+                )
+                return self._version_cache
+        else:
+            return version
+
+    @property
+    def bridge_name(self):
+        return os.path.splitext(os.path.basename(self.bridge.__file__))[0]
+
+    async def _postInit(self):
+        try:
+            bridge_pi = self.bridge.postInit
+        except AttributeError:
+            pass
+        else:
+            await bridge_pi()
+
         self.bridge.register_method("getReady", lambda: self.initialised)
         self.bridge.register_method("getVersion", lambda: self.full_version)
         self.bridge.register_method("getFeatures", self.getFeatures)
@@ -179,38 +219,8 @@
         self.bridge.register_method("imageGeneratePreview", self._imageGeneratePreview)
         self.bridge.register_method("imageConvert", self._imageConvert)
 
-        self.memory.initialized.addCallback(lambda __: defer.ensureDeferred(self._postMemoryInit()))
 
-    @property
-    def version(self):
-        """Return the short version of SàT"""
-        return C.APP_VERSION
-
-    @property
-    def full_version(self):
-        """Return the full version of SàT
-
-        In developement mode, release name and extra data are returned too
-        """
-        version = self.version
-        if version[-1] == "D":
-            # we are in debug version, we add extra data
-            try:
-                return self._version_cache
-            except AttributeError:
-                self._version_cache = "{} « {} » ({})".format(
-                    version, C.APP_RELEASE_NAME, utils.getRepositoryData(sat)
-                )
-                return self._version_cache
-        else:
-            return version
-
-    @property
-    def bridge_name(self):
-        return os.path.splitext(os.path.basename(self.bridge.__file__))[0]
-
-    async def _postMemoryInit(self):
-        """Method called after memory initialization is done"""
+        await self.memory.initialise()
         self.common_cache = cache.Cache(self, None)
         log.info(_("Memory initialised"))
         try:
@@ -451,7 +461,7 @@
             except AttributeError:
                 continue
             else:
-                defers_list.append(defer.maybeDeferred(unload))
+                defers_list.append(utils.asDeferred(unload))
         return defers_list
 
     def _connect(self, profile_key, password="", options=None):
@@ -465,7 +475,7 @@
         Retrieve the individual parameters, authenticate the profile
         and initiate the connection to the associated XMPP server.
         @param profile: %(doc_profile)s
-        @param password (string): the SàT profile password
+        @param password (string): the Libervia profile password
         @param options (dict): connection options. Key can be:
             -
         @param max_retries (int): max number of connection retries
@@ -528,7 +538,7 @@
         features = []
         for import_name, plugin in self.plugins.items():
             try:
-                features_d = defer.maybeDeferred(plugin.getFeatures, profile_key)
+                features_d = utils.asDeferred(plugin.getFeatures, profile_key)
             except AttributeError:
                 features_d = defer.succeed({})
             features.append(features_d)
@@ -576,7 +586,7 @@
                 attr = client.roster.getAttributes(item)
                 # we use full() and not userhost() because jid with resources are allowed
                 # in roster, even if it's not common.
-                ret.append([item.entity.full(), attr, item.groups])
+                ret.append([item.entity.full(), attr, list(item.groups)])
             return ret
 
         return client.roster.got_roster.addCallback(got_roster)
@@ -1103,6 +1113,7 @@
     def _findByFeatures(self, namespaces, identities, bare_jids, service, roster, own_jid,
                         local_device, profile_key):
         client = self.getClient(profile_key)
+        identities = [tuple(i) for i in identities] if identities else None
         return defer.ensureDeferred(self.findByFeatures(
             client, namespaces, identities, bare_jids, service, roster, own_jid,
             local_device))