diff --git a/pyproject.toml b/pyproject.toml
index 53a44bd42..957fa2d50 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -133,7 +133,7 @@ extend-ignore = ["B904", "ISC001", "ICN001", "N818", "RUF005", "RUF013", "RUF012
 files = "sphinx_needs"
 strict = true
 show_error_codes = true
-implicit_reexport = true
+implicit_reexport = false
 namespace_packages = true
 disallow_any_generics = true
 disallow_subclassing_any = true
diff --git a/sphinx_needs/api/__init__.py b/sphinx_needs/api/__init__.py
index 4b482e0ee..6021aedec 100644
--- a/sphinx_needs/api/__init__.py
+++ b/sphinx_needs/api/__init__.py
@@ -9,10 +9,10 @@
 __all__ = (
     "add_dynamic_function",
     "add_extra_option",
-    "add_need_type",
-    "get_need_types",
     "add_external_need",
     "add_need",
+    "add_need_type",
     "del_need",
+    "get_need_types",
     "make_hashed_id",
 )
diff --git a/sphinx_needs/api/configuration.py b/sphinx_needs/api/configuration.py
index ba3c287f3..2677ce0d7 100644
--- a/sphinx_needs/api/configuration.py
+++ b/sphinx_needs/api/configuration.py
@@ -14,8 +14,7 @@
 from sphinx_needs.api.exceptions import NeedsApiConfigException
 from sphinx_needs.config import NEEDS_CONFIG, NeedsSphinxConfig
 from sphinx_needs.data import NeedsInfoType
-from sphinx_needs.functions import register_func
-from sphinx_needs.functions.functions import DynamicFunction
+from sphinx_needs.functions.functions import DynamicFunction, register_func
 
 
 def get_need_types(app: Sphinx) -> list[str]:
diff --git a/sphinx_needs/api/need.py b/sphinx_needs/api/need.py
index 9b9d2ea28..b734c4cf5 100644
--- a/sphinx_needs/api/need.py
+++ b/sphinx_needs/api/need.py
@@ -14,7 +14,6 @@
 from sphinx.application import Sphinx
 from sphinx.environment import BuildEnvironment
 
-from sphinx_needs.api.configuration import NEEDS_CONFIG
 from sphinx_needs.api.exceptions import (
     NeedsConstraintNotAllowed,
     NeedsInvalidException,
@@ -24,7 +23,7 @@
     NeedsTagNotAllowed,
     NeedsTemplateException,
 )
-from sphinx_needs.config import GlobalOptionsType, NeedsSphinxConfig
+from sphinx_needs.config import NEEDS_CONFIG, GlobalOptionsType, NeedsSphinxConfig
 from sphinx_needs.data import NeedsInfoType, SphinxNeedsData
 from sphinx_needs.directives.needuml import Needuml, NeedumlException
 from sphinx_needs.filter_common import filter_single_need
diff --git a/sphinx_needs/directives/need.py b/sphinx_needs/directives/need.py
index a92be651e..6ad096a57 100644
--- a/sphinx_needs/directives/need.py
+++ b/sphinx_needs/directives/need.py
@@ -19,12 +19,12 @@
 from sphinx_needs.debug import measure_time
 from sphinx_needs.defaults import NEED_DEFAULT_OPTIONS
 from sphinx_needs.directives.needextend import Needextend, extend_needs_data
-from sphinx_needs.functions import (
+from sphinx_needs.functions.functions import (
+    check_and_get_content,
     find_and_replace_node_content,
     resolve_dynamic_values,
     resolve_variants_options,
 )
-from sphinx_needs.functions.functions import check_and_get_content
 from sphinx_needs.layout import build_need_repr
 from sphinx_needs.logging import get_logger, log_warning
 from sphinx_needs.need_constraints import process_constraints
diff --git a/sphinx_needs/directives/needflow/_graphviz.py b/sphinx_needs/directives/needflow/_graphviz.py
index 1d0ad9d82..080c43171 100644
--- a/sphinx_needs/directives/needflow/_graphviz.py
+++ b/sphinx_needs/directives/needflow/_graphviz.py
@@ -35,7 +35,7 @@
 try:
     from sphinx.writers.html5 import HTML5Translator
 except ImportError:
-    from sphinx.writers.html import HTML5Translator
+    from sphinx.writers.html import HTML5Translator  # type: ignore[attr-defined]
 
 LOGGER = getLogger(__name__)
 
diff --git a/sphinx_needs/needs.py b/sphinx_needs/needs.py
index 930c8732b..399c44498 100644
--- a/sphinx_needs/needs.py
+++ b/sphinx_needs/needs.py
@@ -30,7 +30,6 @@
 )
 from sphinx_needs.directives.list2need import List2Need, List2NeedDirective
 from sphinx_needs.directives.need import (
-    Need,
     NeedDirective,
     analyse_need_locations,
     html_depart,
@@ -96,8 +95,10 @@
     install_styles_static_files,
 )
 from sphinx_needs.external_needs import load_external_needs
-from sphinx_needs.functions import NEEDS_COMMON_FUNCTIONS, register_func
+from sphinx_needs.functions import NEEDS_COMMON_FUNCTIONS
+from sphinx_needs.functions.functions import register_func
 from sphinx_needs.logging import get_logger, log_warning
+from sphinx_needs.nodes import Need
 from sphinx_needs.roles import NeedsXRefRole
 from sphinx_needs.roles.need_count import NeedCount, process_need_count
 from sphinx_needs.roles.need_func import NeedFunc, NeedFuncRole, process_need_func
diff --git a/sphinx_needs/services/manager.py b/sphinx_needs/services/manager.py
index d993824f3..1a87649c7 100644
--- a/sphinx_needs/services/manager.py
+++ b/sphinx_needs/services/manager.py
@@ -4,8 +4,7 @@
 
 from sphinx.application import Sphinx
 
-from sphinx_needs.api.configuration import NEEDS_CONFIG
-from sphinx_needs.config import NeedsSphinxConfig
+from sphinx_needs.config import NEEDS_CONFIG, NeedsSphinxConfig
 from sphinx_needs.directives.needservice import NeedserviceDirective
 from sphinx_needs.logging import get_logger
 from sphinx_needs.services.base import BaseService
diff --git a/sphinx_needs/utils.py b/sphinx_needs/utils.py
index adb1dd564..911328f36 100644
--- a/sphinx_needs/utils.py
+++ b/sphinx_needs/utils.py
@@ -12,7 +12,8 @@
 
 from docutils import nodes
 from jinja2 import Environment, Template
-from sphinx.application import BuildEnvironment, Sphinx
+from sphinx.application import Sphinx
+from sphinx.environment import BuildEnvironment
 
 from sphinx_needs.api.exceptions import NeedsInvalidFilter
 from sphinx_needs.config import LinkOptionsType, NeedsSphinxConfig