diff --git a/apps/_scaffold/common.py b/apps/_scaffold/common.py
index 6102856ea..428f7499c 100644
--- a/apps/_scaffold/common.py
+++ b/apps/_scaffold/common.py
@@ -4,8 +4,8 @@
 """
 import os
 import sys
-import logging
 from py4web import Session, Cache, Translator, Flash, DAL, Field, action
+from py4web.server_adapters.logging_utils import make_logger
 from py4web.utils.mailer import Mailer
 from py4web.utils.auth import Auth
 from py4web.utils.downloader import downloader
@@ -17,19 +17,7 @@
 # #######################################################
 # implement custom loggers form settings.LOGGERS
 # #######################################################
-logger = logging.getLogger("py4web:" + settings.APP_NAME)
-formatter = logging.Formatter(
-    "%(asctime)s - %(levelname)s - %(filename)s:%(lineno)d - %(message)s"
-)
-for item in settings.LOGGERS:
-    level, filename = item.split(":", 1)
-    if filename in ("stdout", "stderr"):
-        handler = logging.StreamHandler(getattr(sys, filename))
-    else:
-        handler = logging.FileHandler(filename)
-    handler.setFormatter(formatter)
-    logger.setLevel(getattr(logging, level.upper(), "DEBUG"))
-    logger.addHandler(handler)
+logger = make_logger("py4web:" + settings.APP_NAME, settings.LOGGERS)
 
 # #######################################################
 # connect to db
diff --git a/apps/_scaffold/settings.py b/apps/_scaffold/settings.py
index f35883e7f..0f81b1bf7 100644
--- a/apps/_scaffold/settings.py
+++ b/apps/_scaffold/settings.py
@@ -66,7 +66,7 @@
 # logger settings
 LOGGERS = [
     "warning:stdout"
-]  # syntax "severity:filename" filename can be stderr or stdout
+]  # syntax "severity:filename:format" filename can be stderr or stdout
 
 # Disable default login when using OAuth
 DEFAULT_LOGIN_ENABLED = True
diff --git a/apps/fadebook/common.py b/apps/fadebook/common.py
index ef28b7259..428f7499c 100644
--- a/apps/fadebook/common.py
+++ b/apps/fadebook/common.py
@@ -4,31 +4,20 @@
 """
 import os
 import sys
-import logging
 from py4web import Session, Cache, Translator, Flash, DAL, Field, action
+from py4web.server_adapters.logging_utils import make_logger
 from py4web.utils.mailer import Mailer
 from py4web.utils.auth import Auth
 from py4web.utils.downloader import downloader
 from pydal.tools.tags import Tags
+from pydal.tools.scheduler import Scheduler
 from py4web.utils.factories import ActionFactory
 from . import settings
 
 # #######################################################
 # implement custom loggers form settings.LOGGERS
 # #######################################################
-logger = logging.getLogger("py4web:" + settings.APP_NAME)
-formatter = logging.Formatter(
-    "%(asctime)s - %(levelname)s - %(filename)s:%(lineno)d - %(message)s"
-)
-for item in settings.LOGGERS:
-    level, filename = item.split(":", 1)
-    if filename in ("stdout", "stderr"):
-        handler = logging.StreamHandler(getattr(sys, filename))
-    else:
-        handler = logging.FileHandler(filename)
-    handler.setFormatter(formatter)
-    logger.setLevel(getattr(logging, level.upper(), "DEBUG"))
-    logger.addHandler(handler)
+logger = make_logger("py4web:" + settings.APP_NAME, settings.LOGGERS)
 
 # #######################################################
 # connect to db
@@ -52,6 +41,7 @@
 # #######################################################
 if settings.SESSION_TYPE == "cookies":
     session = Session(secret=settings.SESSION_SECRET_KEY)
+
 elif settings.SESSION_TYPE == "redis":
     import redis
 
@@ -64,11 +54,13 @@
         else cs(k, v, e)
     )
     session = Session(secret=settings.SESSION_SECRET_KEY, storage=conn)
+
 elif settings.SESSION_TYPE == "memcache":
     import memcache, time
 
     conn = memcache.Client(settings.MEMCACHE_CLIENTS, debug=0)
     session = Session(secret=settings.SESSION_SECRET_KEY, storage=conn)
+
 elif settings.SESSION_TYPE == "database":
     from py4web.utils.dbstore import DBStore
 
@@ -84,7 +76,7 @@
 auth.param.login_after_registration = settings.LOGIN_AFTER_REGISTRATION
 auth.param.allowed_actions = settings.ALLOWED_ACTIONS
 auth.param.login_expiration_time = 3600
-auth.param.password_complexity = {"entropy": 0}
+auth.param.password_complexity = {"entropy": settings.PASSWORD_ENTROPY}
 auth.param.block_previous_password_num = 3
 auth.param.default_login_enabled = settings.DEFAULT_LOGIN_ENABLED
 auth.define_tables()
@@ -133,6 +125,31 @@
             callback_url="auth/plugin/oauth2google/callback",
         )
     )
+
+if settings.OAUTH2GOOGLE_SCOPED_CREDENTIALS_FILE:
+    from py4web.utils.auth_plugins.oauth2google_scoped import (
+        OAuth2GoogleScoped,
+    )  # TESTED
+
+    auth.register_plugin(
+        OAuth2GoogleScoped(
+            secrets_file=settings.OAUTH2GOOGLE_SCOPED_CREDENTIALS_FILE,
+            scopes=[],  # Put here any scopes you want in addition to login
+            db=db,  # Needed to store credentials in auth_credentials
+        )
+    )
+
+if settings.OAUTH2GITHUB_CLIENT_ID:
+    from py4web.utils.auth_plugins.oauth2github import OAuth2Github  # TESTED
+
+    auth.register_plugin(
+        OAuth2Github(
+            client_id=settings.OAUTH2GITHUB_CLIENT_ID,
+            client_secret=settings.OAUTH2GITHUB_CLIENT_SECRET,
+            callback_url="auth/plugin/oauth2github/callback",
+        )
+    )
+
 if settings.OAUTH2FACEBOOK_CLIENT_ID:
     from py4web.utils.auth_plugins.oauth2facebook import OAuth2Facebook  # UNTESTED
 
@@ -160,10 +177,12 @@
 # files uploaded and reference by Field(type='upload')
 # #######################################################
 if settings.UPLOAD_FOLDER:
-    @action('download/<filename>')                                                   
-    @action.uses(db)                                                                                           
+
+    @action("download/<filename>")
+    @action.uses(db)
     def download(filename):
-        return downloader(db, settings.UPLOAD_FOLDER, filename) 
+        return downloader(db, settings.UPLOAD_FOLDER, filename)
+
     # To take advantage of this in Form(s)
     # for every field of type upload you MUST specify:
     #
@@ -171,17 +190,15 @@ def download(filename):
     # field.download_url = lambda filename: URL('download/%s' % filename)
 
 # #######################################################
-# Optionally configure celery
+# Define and optionally start the scheduler
 # #######################################################
-if settings.USE_CELERY:
-    from celery import Celery
-
-    # to use "from .common import scheduler" and then use it according
-    # to celery docs, examples in tasks.py
-    scheduler = Celery(
-        "apps.%s.tasks" % settings.APP_NAME, broker=settings.CELERY_BROKER
+if settings.USE_SCHEDULER:
+    scheduler = Scheduler(
+        db, logger=logger, max_concurrent_runs=settings.SCHEDULER_MAX_CONCURRENT_RUNS
     )
-
+    scheduler.start()
+else:
+    scheduler = None
 
 # #######################################################
 # Enable authentication
@@ -190,6 +207,8 @@ def download(filename):
 
 # #######################################################
 # Define convenience decorators
+# They can be used instead of @action and @action.uses
+# They should NEVER BE MIXED with @action and @action.uses
 # #######################################################
 unauthenticated = ActionFactory(db, session, T, flash, auth)
 authenticated = ActionFactory(db, session, T, flash, auth.user)
diff --git a/apps/fadebook/settings.py b/apps/fadebook/settings.py
index 34e90c65d..0f81b1bf7 100644
--- a/apps/fadebook/settings.py
+++ b/apps/fadebook/settings.py
@@ -8,16 +8,20 @@
 import os
 from py4web.core import required_folder
 
+# mode (default or development)
+MODE = os.environ.get("PY4WEB_MODE")
+
 # db settings
 APP_FOLDER = os.path.dirname(__file__)
 APP_NAME = os.path.split(APP_FOLDER)[-1]
+
 # DB_FOLDER:    Sets the place where migration files will be created
 #               and is the store location for SQLite databases
 DB_FOLDER = required_folder(APP_FOLDER, "databases")
 DB_URI = "sqlite://storage.db"
 DB_POOL_SIZE = 1
 DB_MIGRATE = True
-DB_FAKE_MIGRATE = False  # maybe?
+DB_FAKE_MIGRATE = False
 
 # location where static files are stored:
 STATIC_FOLDER = required_folder(APP_FOLDER, "static")
@@ -26,17 +30,20 @@
 UPLOAD_FOLDER = required_folder(APP_FOLDER, "uploads")
 
 # send verification email on registration
-VERIFY_EMAIL = False
+VERIFY_EMAIL = MODE != "development"
+
+# complexity of the password 0: no constraints, 50: safe!
+PASSWORD_ENTROPY = 0 if MODE == "development" else 50
 
 # account requires to be approved ?
 REQUIRES_APPROVAL = False
 
 # auto login after registration
-# requires False VERIFY_EMAIL & REQUIRES_APPROVAL 
-LOGIN_AFTER_REGISTRATION = True
+# requires False VERIFY_EMAIL & REQUIRES_APPROVAL
+LOGIN_AFTER_REGISTRATION = False
 
 # ALLOWED_ACTIONS in API / default Forms:
-# ["all"] 
+# ["all"]
 # ["login", "logout", "request_reset_password", "reset_password", \
 #  "change_password", "change_email", "profile", "config", "register",
 #  "verify_email", "unsubscribe"]
@@ -52,14 +59,14 @@
 
 # session settings
 SESSION_TYPE = "cookies"
-SESSION_SECRET_KEY = None   # or replace with your own secret
+SESSION_SECRET_KEY = None  # or replace with your own secret
 MEMCACHE_CLIENTS = ["127.0.0.1:11211"]
 REDIS_SERVER = "localhost:6379"
 
 # logger settings
 LOGGERS = [
     "warning:stdout"
-]  # syntax "severity:filename" filename can be stderr or stdout
+]  # syntax "severity:filename:format" filename can be stderr or stdout
 
 # Disable default login when using OAuth
 DEFAULT_LOGIN_ENABLED = True
@@ -68,6 +75,10 @@
 OAUTH2GOOGLE_CLIENT_ID = None
 OAUTH2GOOGLE_CLIENT_SECRET = None
 
+# Single sign on Google, with stored credentials for scopes (will be used if provided).
+# set it to something like os.path.join(APP_FOLDER, "private/credentials.json"
+OAUTH2GOOGLE_SCOPED_CREDENTIALS_FILE = None
+
 # single sign on Okta (will be used if provided. Please also add your tenant
 # name to py4web/utils/auth_plugins/oauth2okta.py. You can replace the XXX
 # instances with your tenant name.)
@@ -78,6 +89,10 @@
 OAUTH2FACEBOOK_CLIENT_ID = None
 OAUTH2FACEBOOK_CLIENT_SECRET = None
 
+# single sign on GitHub (will be used if provided)
+OAUTH2GITHUB_CLIENT_ID = None
+OAUTH2GITHUB_CLIENT_SECRET = None
+
 # enable PAM
 USE_PAM = False
 
@@ -85,14 +100,18 @@
 USE_LDAP = False
 LDAP_SETTINGS = {
     "mode": "ad",  # Microsoft Active Directory
-    "server": "mydc.domain.com", # FQDN or IP of one Domain Controller
-    "base_dn": "cn=Users,dc=domain,dc=com", # base dn, i.e. where the users are located
+    "server": "mydc.domain.com",  # FQDN or IP of one Domain Controller
+    "base_dn": "cn=Users,dc=domain,dc=com",  # base dn, i.e. where the users are located
 }
 
 # i18n settings
 T_FOLDER = required_folder(APP_FOLDER, "translations")
 
-# Celery settings
+# Scheduler settings
+USE_SCHEDULER = False
+SCHEDULER_MAX_CONCURRENT_RUNS = 1
+
+# Celery settings (alternative to the build-in scheduler)
 USE_CELERY = False
 CELERY_BROKER = "redis://localhost:6379/0"
 
diff --git a/apps/tagged_posts/common.py b/apps/tagged_posts/common.py
index bf3bc5443..428f7499c 100644
--- a/apps/tagged_posts/common.py
+++ b/apps/tagged_posts/common.py
@@ -4,31 +4,20 @@
 """
 import os
 import sys
-import logging
 from py4web import Session, Cache, Translator, Flash, DAL, Field, action
+from py4web.server_adapters.logging_utils import make_logger
 from py4web.utils.mailer import Mailer
 from py4web.utils.auth import Auth
 from py4web.utils.downloader import downloader
 from pydal.tools.tags import Tags
+from pydal.tools.scheduler import Scheduler
 from py4web.utils.factories import ActionFactory
 from . import settings
 
 # #######################################################
 # implement custom loggers form settings.LOGGERS
 # #######################################################
-logger = logging.getLogger("py4web:" + settings.APP_NAME)
-formatter = logging.Formatter(
-    "%(asctime)s - %(levelname)s - %(filename)s:%(lineno)d - %(message)s"
-)
-for item in settings.LOGGERS:
-    level, filename = item.split(":", 1)
-    if filename in ("stdout", "stderr"):
-        handler = logging.StreamHandler(getattr(sys, filename))
-    else:
-        handler = logging.FileHandler(filename)
-    handler.setFormatter(formatter)
-    logger.setLevel(getattr(logging, level.upper(), "DEBUG"))
-    logger.addHandler(handler)
+logger = make_logger("py4web:" + settings.APP_NAME, settings.LOGGERS)
 
 # #######################################################
 # connect to db
@@ -52,6 +41,7 @@
 # #######################################################
 if settings.SESSION_TYPE == "cookies":
     session = Session(secret=settings.SESSION_SECRET_KEY)
+
 elif settings.SESSION_TYPE == "redis":
     import redis
 
@@ -64,11 +54,13 @@
         else cs(k, v, e)
     )
     session = Session(secret=settings.SESSION_SECRET_KEY, storage=conn)
+
 elif settings.SESSION_TYPE == "memcache":
     import memcache, time
 
     conn = memcache.Client(settings.MEMCACHE_CLIENTS, debug=0)
     session = Session(secret=settings.SESSION_SECRET_KEY, storage=conn)
+
 elif settings.SESSION_TYPE == "database":
     from py4web.utils.dbstore import DBStore
 
@@ -84,7 +76,7 @@
 auth.param.login_after_registration = settings.LOGIN_AFTER_REGISTRATION
 auth.param.allowed_actions = settings.ALLOWED_ACTIONS
 auth.param.login_expiration_time = 3600
-auth.param.password_complexity = {"entropy": 0}
+auth.param.password_complexity = {"entropy": settings.PASSWORD_ENTROPY}
 auth.param.block_previous_password_num = 3
 auth.param.default_login_enabled = settings.DEFAULT_LOGIN_ENABLED
 auth.define_tables()
@@ -135,13 +127,15 @@
     )
 
 if settings.OAUTH2GOOGLE_SCOPED_CREDENTIALS_FILE:
-    from py4web.utils.auth_plugins.oauth2google_scoped import OAuth2GoogleScoped # TESTED
+    from py4web.utils.auth_plugins.oauth2google_scoped import (
+        OAuth2GoogleScoped,
+    )  # TESTED
 
     auth.register_plugin(
         OAuth2GoogleScoped(
             secrets_file=settings.OAUTH2GOOGLE_SCOPED_CREDENTIALS_FILE,
-            scopes=[], # Put here any scopes you want in addition to login
-            db=db, # Needed to store credentials in auth_credentials
+            scopes=[],  # Put here any scopes you want in addition to login
+            db=db,  # Needed to store credentials in auth_credentials
         )
     )
 
@@ -183,10 +177,12 @@
 # files uploaded and reference by Field(type='upload')
 # #######################################################
 if settings.UPLOAD_FOLDER:
-    @action('download/<filename>')
+
+    @action("download/<filename>")
     @action.uses(db)
     def download(filename):
         return downloader(db, settings.UPLOAD_FOLDER, filename)
+
     # To take advantage of this in Form(s)
     # for every field of type upload you MUST specify:
     #
@@ -194,17 +190,15 @@ def download(filename):
     # field.download_url = lambda filename: URL('download/%s' % filename)
 
 # #######################################################
-# Optionally configure celery
+# Define and optionally start the scheduler
 # #######################################################
-if settings.USE_CELERY:
-    from celery import Celery
-
-    # to use "from .common import scheduler" and then use it according
-    # to celery docs, examples in tasks.py
-    scheduler = Celery(
-        "apps.%s.tasks" % settings.APP_NAME, broker=settings.CELERY_BROKER
+if settings.USE_SCHEDULER:
+    scheduler = Scheduler(
+        db, logger=logger, max_concurrent_runs=settings.SCHEDULER_MAX_CONCURRENT_RUNS
     )
-
+    scheduler.start()
+else:
+    scheduler = None
 
 # #######################################################
 # Enable authentication
@@ -213,6 +207,8 @@ def download(filename):
 
 # #######################################################
 # Define convenience decorators
+# They can be used instead of @action and @action.uses
+# They should NEVER BE MIXED with @action and @action.uses
 # #######################################################
 unauthenticated = ActionFactory(db, session, T, flash, auth)
 authenticated = ActionFactory(db, session, T, flash, auth.user)
diff --git a/apps/tagged_posts/settings.py b/apps/tagged_posts/settings.py
index 77bb95a4e..0f81b1bf7 100644
--- a/apps/tagged_posts/settings.py
+++ b/apps/tagged_posts/settings.py
@@ -8,16 +8,20 @@
 import os
 from py4web.core import required_folder
 
+# mode (default or development)
+MODE = os.environ.get("PY4WEB_MODE")
+
 # db settings
 APP_FOLDER = os.path.dirname(__file__)
 APP_NAME = os.path.split(APP_FOLDER)[-1]
+
 # DB_FOLDER:    Sets the place where migration files will be created
 #               and is the store location for SQLite databases
 DB_FOLDER = required_folder(APP_FOLDER, "databases")
 DB_URI = "sqlite://storage.db"
 DB_POOL_SIZE = 1
 DB_MIGRATE = True
-DB_FAKE_MIGRATE = False  # maybe?
+DB_FAKE_MIGRATE = False
 
 # location where static files are stored:
 STATIC_FOLDER = required_folder(APP_FOLDER, "static")
@@ -26,7 +30,10 @@
 UPLOAD_FOLDER = required_folder(APP_FOLDER, "uploads")
 
 # send verification email on registration
-VERIFY_EMAIL = True
+VERIFY_EMAIL = MODE != "development"
+
+# complexity of the password 0: no constraints, 50: safe!
+PASSWORD_ENTROPY = 0 if MODE == "development" else 50
 
 # account requires to be approved ?
 REQUIRES_APPROVAL = False
@@ -52,14 +59,14 @@
 
 # session settings
 SESSION_TYPE = "cookies"
-SESSION_SECRET_KEY = None   # or replace with your own secret
+SESSION_SECRET_KEY = None  # or replace with your own secret
 MEMCACHE_CLIENTS = ["127.0.0.1:11211"]
 REDIS_SERVER = "localhost:6379"
 
 # logger settings
 LOGGERS = [
     "warning:stdout"
-]  # syntax "severity:filename" filename can be stderr or stdout
+]  # syntax "severity:filename:format" filename can be stderr or stdout
 
 # Disable default login when using OAuth
 DEFAULT_LOGIN_ENABLED = True
@@ -93,14 +100,18 @@
 USE_LDAP = False
 LDAP_SETTINGS = {
     "mode": "ad",  # Microsoft Active Directory
-    "server": "mydc.domain.com", # FQDN or IP of one Domain Controller
-    "base_dn": "cn=Users,dc=domain,dc=com", # base dn, i.e. where the users are located
+    "server": "mydc.domain.com",  # FQDN or IP of one Domain Controller
+    "base_dn": "cn=Users,dc=domain,dc=com",  # base dn, i.e. where the users are located
 }
 
 # i18n settings
 T_FOLDER = required_folder(APP_FOLDER, "translations")
 
-# Celery settings
+# Scheduler settings
+USE_SCHEDULER = False
+SCHEDULER_MAX_CONCURRENT_RUNS = 1
+
+# Celery settings (alternative to the build-in scheduler)
 USE_CELERY = False
 CELERY_BROKER = "redis://localhost:6379/0"