diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
new file mode 100644
index 0000000..440f225
--- /dev/null
+++ b/.github/workflows/tests.yaml
@@ -0,0 +1,70 @@
+---
+name: tests
+
+"on":
+  push:
+  pull_request:
+
+jobs:
+
+#  misc:
+#    name: "Linting configs and git"
+#    runs-on: ubuntu-latest
+#    steps:
+#      - uses: actions/checkout@v4
+#        with:
+#          fetch-depth: 12
+#
+#      - uses: docker://docker.io/tamasfe/taplo:latest
+#        name: "Lint TOMLs"
+#        with:
+#          args: fmt --check --diff
+#
+#      - uses: actions/setup-python@v5
+#      - name: "Install tox"
+#        run: |
+#          pip install tox
+#      - name: "Lint YAMLs"
+#        run: |
+#          tox -e lint-yaml
+#      - name: "Lint git"
+#        run: |
+#          tox -e lint-git
+
+#  lint:
+#    name: "Linting and type checking"
+#    runs-on: ubuntu-24.04
+#    strategy:
+#      fail-fast: true
+#    steps:
+#      - uses: actions/checkout@v4
+#      - uses: actions/setup-python@v5
+#        with:
+#          python-version: "3.13"
+#      - name: "Install tox"
+#        run: |
+#          pip install tox
+#      - name: "Lint formatting"
+#        run: |
+#          tox -e lint-py
+#      - name: "Type checking"
+#        run: |
+#          tox -e lint-mypy
+
+  tests:
+    name: "Run unit tests"
+    runs-on: ubuntu-24.04
+    strategy:
+      fail-fast: true
+      matrix:
+        python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: "Installing tox"
+        run: pip install tox
+      - name: "Executing unit tests"
+        run: |
+          tox run -e ${{ matrix.python-version }}
diff --git a/src/inject/__init__.py b/src/inject/__init__.py
index 02bb2c7..f324873 100644
--- a/src/inject/__init__.py
+++ b/src/inject/__init__.py
@@ -73,6 +73,8 @@ def my_config(binder):
     inject.configure(my_config)
 
 """
+from __future__ import annotations
+
 import contextlib
 
 from inject._version import __version__
@@ -84,7 +86,7 @@ def my_config(binder):
 from functools import wraps
 from typing import (Any, Awaitable, Callable, Dict, Generic, Hashable,
                     Optional, Set, Type, TypeVar, Union, cast, get_type_hints,
-                    overload, no_type_check, Self)
+                    overload, no_type_check)
 
 _HAS_PEP604_SUPPORT = sys.version_info[:3] >= (3, 10, 0)  # PEP 604
 if _HAS_PEP604_SUPPORT:
@@ -214,8 +216,12 @@ def __init__(
         else:
             self._bindings = {}
 
+    # NOTE(pyctrl): only since 3.12
+    # @overload
+    # def get_instance(self, cls: Type[T]) -> T: ...
+
     @overload
-    def get_instance(self, cls: Type[T]) -> T: ...
+    def get_instance(self, cls: Binding) -> T: ...
 
     @overload
     def get_instance(self, cls: Hashable) -> Injectable: ...
@@ -521,11 +527,19 @@ def sign_up(name, email, cache, db):
     return _ParametersInjection(**args_to_classes)
 
 
+# NOTE(pyctrl): only since 3.12
+# @overload
+# def autoparams[T](fn: Callable[..., T]) -> Callable[..., T]: ...
+
 @overload
-def autoparams[T](fn: Callable[..., T]) -> Callable[..., T]: ...
+def autoparams(fn: Callable) -> Callable: ...
+
+# NOTE(pyctrl): only since 3.12
+# @overload
+# def autoparams[C: Callable](*selected: str) -> Callable[[C], C]: ...
 
 @overload
-def autoparams[C: Callable](*selected: str) -> Callable[[C], C]: ...
+def autoparams(*selected: str) -> Callable: ...
 
 @no_type_check
 def autoparams(*selected: str):