diff --git a/.PKGBUILD/PKGBUILD b/.PKGBUILD/PKGBUILD
index 97d3995..82d038d 100644
--- a/.PKGBUILD/PKGBUILD
+++ b/.PKGBUILD/PKGBUILD
@@ -11,6 +11,7 @@ license=('MIT')
 depends=('python' 'python-jose' 'python-starlette' 'python-httpx' 'python-fastapi' 'python-dotenv' 'python-dateutil' 'python-sqlalchemy' 'python-pycryptodome' 'uvicorn' 'python-markdown' 'openssl')
 provider=("$pkgname")
 install="$pkgname.install"
+backup=('etc/default/fastapi-dls')
 source=('git+file:///builds/oscar.krause/fastapi-dls' # https://gitea.publichub.eu/oscar.krause/fastapi-dls.git
         "$pkgname.default"
         "$pkgname.service"
diff --git a/README.md b/README.md
index 28a7bdc..649b158 100644
--- a/README.md
+++ b/README.md
@@ -7,11 +7,31 @@ Compatibility tested with official DLS 2.0.1.
 This service can be used without internet connection.
 Only the clients need a connection to this service on configured port.
 
+**Official Links**
+
+- https://git.collinwebdesigns.de/oscar.krause/fastapi-dls
+- https://gitea.publichub.eu/oscar.krause/fastapi-dls
+- Docker Image `collinwebdesigns/fastapi-dls:latest`
+
+*All other repositories are forks! (which  is no bad - just for information and bug reports)*
+
+---
+
 [[_TOC_]]
 
-
 # Setup (Service)
 
+**System requirements**
+
+- 256mb ram
+- 4gb hdd
+
+Tested with Ubuntu 22.10 (from Proxmox templates), actually its consuming 100mb ram and 750mb hdd.
+
+**Prepare your system**
+
+- Make sure your timezone is set correct on you fastapi-dls server and your client
+
 ## Docker
 
 Docker-Images are available here:
@@ -348,10 +368,6 @@ Shows current runtime environment variables and their values.
 
 HTML rendered README.md.
 
-### `GET /-/docs`, `GET /-/redoc`
-
-OpenAPI specifications rendered from `GET /-/openapi.json`.
-
 ### `GET /-/manage`
 
 Shows a very basic UI to delete origins or leases.
diff --git a/app/main.py b/app/main.py
index 204a55a..4b78253 100644
--- a/app/main.py
+++ b/app/main.py
@@ -22,12 +22,13 @@ from sqlalchemy.orm import sessionmaker
 from util import load_key, load_file
 from orm import Origin, Lease, init as db_init, migrate
 
-logger = logging.getLogger()
 load_dotenv('../version.env')
 
+TZ = datetime.now().astimezone().tzinfo
+
 VERSION, COMMIT, DEBUG = env('VERSION', 'unknown'), env('COMMIT', 'unknown'), bool(env('DEBUG', False))
 
-config = dict(openapi_url='/-/openapi.json', docs_url='/-/docs', redoc_url='/-/redoc')
+config = dict(openapi_url=None, docs_url=None, redoc_url=None)  # dict(openapi_url='/-/openapi.json', docs_url='/-/docs', redoc_url='/-/redoc')
 app = FastAPI(title='FastAPI-DLS', description='Minimal Delegated License Service (DLS).', version=VERSION, **config)
 db = create_engine(str(env('DATABASE', 'sqlite:///db.sqlite')))
 db_init(db), migrate(db)
@@ -44,6 +45,7 @@ TOKEN_EXPIRE_DELTA = relativedelta(days=int(env('TOKEN_EXPIRE_DAYS', 1)), hours=
 LEASE_EXPIRE_DELTA = relativedelta(days=int(env('LEASE_EXPIRE_DAYS', 90)), hours=int(env('LEASE_EXPIRE_HOURS', 0)))
 LEASE_RENEWAL_PERIOD = float(env('LEASE_RENEWAL_PERIOD', 0.15))
 LEASE_RENEWAL_DELTA = timedelta(days=int(env('LEASE_EXPIRE_DAYS', 90)), hours=int(env('LEASE_EXPIRE_HOURS', 0)))
+CLIENT_TOKEN_EXPIRE_DELTA = relativedelta(years=12)
 CORS_ORIGINS = str(env('CORS_ORIGINS', '')).split(',') if (env('CORS_ORIGINS')) else [f'https://{DLS_URL}']
 
 jwt_encode_key = jwk.construct(INSTANCE_KEY_RSA.export_key().decode('utf-8'), algorithm=ALGORITHMS.RS256)
@@ -58,6 +60,8 @@ app.add_middleware(
     allow_headers=['*'],
 )
 
+logging.basicConfig()
+logger = logging.getLogger(__name__)
 logger.setLevel(logging.DEBUG if DEBUG else logging.INFO)
 
 
@@ -97,6 +101,7 @@ async def _config():
         'LEASE_EXPIRE_DELTA': str(LEASE_EXPIRE_DELTA),
         'LEASE_RENEWAL_PERIOD': str(LEASE_RENEWAL_PERIOD),
         'CORS_ORIGINS': str(CORS_ORIGINS),
+        'TZ': str(TZ),
     })
 
 
@@ -192,7 +197,7 @@ async def _lease_delete(request: Request, lease_ref: str):
 @app.get('/-/client-token', summary='* Client-Token', description='creates a new messenger token for this service instance')
 async def _client_token():
     cur_time = datetime.utcnow()
-    exp_time = cur_time + relativedelta(years=12)
+    exp_time = cur_time + CLIENT_TOKEN_EXPIRE_DELTA
 
     payload = {
         "jti": str(uuid4()),
@@ -529,6 +534,18 @@ async def leasing_v1_lessor_shutdown(request: Request):
     return JSONr(response)
 
 
+@app.on_event('startup')
+async def app_on_startup():
+    logger.info(f'''
+    Using timezone: {str(TZ)}. Make sure this is correct and match your clients!
+    
+    Your clients renew their license every {str(Lease.calculate_renewal(LEASE_RENEWAL_PERIOD, LEASE_RENEWAL_DELTA))}.
+    If the renewal fails, the license is {str(LEASE_RENEWAL_DELTA)} valid.
+    
+    Your client-token file (.tok) is valid for {str(CLIENT_TOKEN_EXPIRE_DELTA)}.
+    ''')
+
+
 if __name__ == '__main__':
     import uvicorn
 
diff --git a/app/orm.py b/app/orm.py
index bfd6557..6f4858f 100644
--- a/app/orm.py
+++ b/app/orm.py
@@ -57,12 +57,12 @@ class Origin(Base):
         session.close()
 
     @staticmethod
-    def delete(engine: Engine, origins: ["Origin"] = None) -> int:
+    def delete(engine: Engine, origin_refs: [str] = None) -> int:
         session = sessionmaker(bind=engine)()
-        if origins is None:
+        if origin_refs is None:
             deletions = session.query(Origin).delete()
         else:
-            deletions = session.query(Origin).filter(Origin.origin_ref in origins).delete()
+            deletions = session.query(Origin).filter(Origin.origin_ref in origin_refs).delete()
         session.commit()
         session.close()
         return deletions
@@ -170,6 +170,14 @@ class Lease(Base):
         renew = delta.total_seconds() * LEASE_RENEWAL_PERIOD
         renew = datetime.timedelta(seconds=renew)
         expires = delta - renew  # 19.2
+
+        import datetime
+        LEASE_RENEWAL_PERIOD=0.15  # 15%
+        delta = datetime.timedelta(days=90)
+        renew = delta.total_seconds() * LEASE_RENEWAL_PERIOD
+        renew = datetime.timedelta(seconds=renew)
+        expires = delta - renew  # 76 days, 12:00:00 hours
+
         """
         renew = delta.total_seconds() * renewal_period
         renew = timedelta(seconds=renew)
diff --git a/requirements.txt b/requirements.txt
index 4c25d3f..61d00cc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,4 +5,4 @@ pycryptodome==3.16.0
 python-dateutil==2.8.2
 sqlalchemy==1.4.46
 markdown==3.4.1
-python-dotenv==0.21.0
+python-dotenv==0.21.1
diff --git a/version.env b/version.env
index 93176fc..c7644ab 100644
--- a/version.env
+++ b/version.env
@@ -1 +1 @@
-VERSION=1.3.3
+VERSION=1.3.4