diff --git a/poetry.lock b/poetry.lock
index 64221b7..0d96a78 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,4 +1,4 @@
-# This file is automatically @generated by Poetry and should not be changed by hand.
+# This file is automatically @generated by Poetry 1.4.2 and should not be changed by hand.
 
 [[package]]
 name = "alabaster"
@@ -27,6 +27,24 @@ files = [
 [package.dependencies]
 vine = ">=5.0.0"
 
+[[package]]
+name = "asgiref"
+version = "3.6.0"
+description = "ASGI specs, helper code, and adapters"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "asgiref-3.6.0-py3-none-any.whl", hash = "sha256:71e68008da809b957b7ee4b43dbccff33d1b23519fb8344e33f049897077afac"},
+    {file = "asgiref-3.6.0.tar.gz", hash = "sha256:9567dfe7bd8d3c8c892227827c41cce860b368104c3431da67a0c5a65a949506"},
+]
+
+[package.dependencies]
+typing-extensions = {version = "*", markers = "python_version < \"3.8\""}
+
+[package.extras]
+tests = ["mypy (>=0.800)", "pytest", "pytest-asyncio"]
+
 [[package]]
 name = "async-timeout"
 version = "4.0.2"
@@ -376,6 +394,27 @@ files = [
 [package.extras]
 toml = ["tomli"]
 
+[[package]]
+name = "django"
+version = "3.2.19"
+description = "A high-level Python Web framework that encourages rapid development and clean, pragmatic design."
+category = "main"
+optional = false
+python-versions = ">=3.6"
+files = [
+    {file = "Django-3.2.19-py3-none-any.whl", hash = "sha256:21cc991466245d659ab79cb01204f9515690f8dae00e5eabde307f14d24d4d7d"},
+    {file = "Django-3.2.19.tar.gz", hash = "sha256:031365bae96814da19c10706218c44dff3b654cc4de20a98bd2d29b9bde469f0"},
+]
+
+[package.dependencies]
+asgiref = ">=3.3.2,<4"
+pytz = "*"
+sqlparse = ">=0.2.2"
+
+[package.extras]
+argon2 = ["argon2-cffi (>=19.1.0)"]
+bcrypt = ["bcrypt"]
+
 [[package]]
 name = "docutils"
 version = "0.19"
@@ -388,6 +427,25 @@ files = [
     {file = "docutils-0.19.tar.gz", hash = "sha256:33995a6753c30b7f577febfc2c50411fec6aac7f7ffeb7c4cfe5991072dcf9e6"},
 ]
 
+[[package]]
+name = "gvacommon"
+version = "0.6.0"
+description = ""
+category = "main"
+optional = false
+python-versions = ">=3.7,<4.0"
+files = [
+    {file = "gvacommon-0.6.0-py3-none-any.whl", hash = "sha256:89977984ae8fd76860c326b0221a3327c48b7f3349ef058541770f0d1a3a55d8"},
+]
+
+[package.dependencies]
+django = "<4"
+
+[package.source]
+type = "legacy"
+url = "https://pypi.gnuviech-server.de/simple"
+reference = "gnuviech"
+
 [[package]]
 name = "idna"
 version = "3.4"
@@ -825,6 +883,23 @@ files = [
 lint = ["docutils-stubs", "flake8", "mypy"]
 test = ["pytest"]
 
+[[package]]
+name = "sqlparse"
+version = "0.4.4"
+description = "A non-validating SQL parser."
+category = "main"
+optional = false
+python-versions = ">=3.5"
+files = [
+    {file = "sqlparse-0.4.4-py3-none-any.whl", hash = "sha256:5430a4fe2ac7d0f93e66f1efc6e1338a41884b7ddf2a350cedd20ccc4d9d28f3"},
+    {file = "sqlparse-0.4.4.tar.gz", hash = "sha256:d446183e84b8349fa3061f0fe7f06ca94ba65b426946ffebe6e3e8295332420c"},
+]
+
+[package.extras]
+dev = ["build", "flake8"]
+doc = ["sphinx"]
+test = ["pytest", "pytest-cov"]
+
 [[package]]
 name = "typing-extensions"
 version = "4.5.0"
@@ -897,4 +972,4 @@ testing = ["big-O", "flake8 (<5)", "jaraco.functools", "jaraco.itertools", "more
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.7"
-content-hash = "cc5b23fce0286c6c8f1df4926fcb75bbb7e46a54d41e4249f3eb7165ee8214b5"
+content-hash = "1bdf2e39fdc05be7a0aaa245fd80ca653dd10dd480774577eb19d3c7d697f5e4"
diff --git a/pyproject.toml b/pyproject.toml
index 6314f91..dfd35b5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,6 +11,7 @@ python = "^3.7"
 celery = "^5.2.7"
 redis = "^4.5.1"
 importlib-metadata = "<5"
+gvacommon = {version = "^0.6.0", source = "gnuviech"}
 
 
 [tool.poetry.group.dev.dependencies]
@@ -18,6 +19,13 @@ sphinx = "<6"
 releases = "^2.0.0"
 coverage = "^7.1.0"
 
+
+[[tool.poetry.source]]
+name = "gnuviech"
+url = "https://pypi.gnuviech-server.de/simple"
+default = false
+secondary = false
+
 [build-system]
 requires = ["poetry-core"]
 build-backend = "poetry.core.masonry.api"