diff --git a/.coveragerc b/.coveragerc
index d1e79c9..f70c551 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -5,6 +5,7 @@ omit =
     .venv/*
 
 [report]
+fail_under = 100
 show_missing = True
 skip_covered = False
 exclude_lines =
diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
new file mode 100644
index 0000000..0ce784d
--- /dev/null
+++ b/.github/workflows/main.yaml
@@ -0,0 +1,85 @@
+name: CI
+on: [push]
+jobs:
+  tests:
+    name: Python ${{ matrix.python-version }} Tests
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version:
+        - '3.9'
+        - '3.10'
+    steps:
+    - uses: actions/checkout@v3
+
+    - uses: actions/setup-python@v3
+      with:
+        python-version: ${{ matrix.python-version }}
+        cache: 'pip'
+        cache-dependency-path: 'requirements/dev.txt'
+
+    - name: Upgrade packaging tools
+      run: pip install -U pip
+
+    - name: Install dependencies
+      run: pip install -U -r requirements/dev.txt
+
+    - name: Install asyncio-taskpool
+      run: pip install -e .
+
+    - name: Run tests for Python ${{ matrix.python-version }}
+      if: ${{ matrix.python-version != '3.10' }}
+      run: python -m tests
+
+    - name: Run tests for Python 3.10 and save coverage
+      if: ${{ matrix.python-version == '3.10' }}
+      run: echo "coverage=$(./coverage.sh)" >> $GITHUB_ENV
+    
+    outputs:
+      coverage: ${{ env.coverage }}
+
+  update_badges:
+    needs: tests
+    name: Update Badges
+    env:
+      meta_gist_id: 3f8240a976e8781a765d9c74a583dcda
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Download `cloc`
+        run: sudo apt-get update -y && sudo apt-get install -y cloc
+
+      - name: Count lines of code/comments
+        run: |
+          echo "cloc_code=$(./cloc.sh -c src/)" >> $GITHUB_ENV
+          echo "cloc_comments=$(./cloc.sh -m src/)" >> $GITHUB_ENV
+          echo "cloc_commentpercent=$(./cloc.sh -p src/)" >> $GITHUB_ENV
+
+      - name: Create badge for lines of code
+        uses: Schneegans/dynamic-badges-action@v1.2.0
+        with:
+          auth: ${{ secrets.GIST_META_DATA }}
+          gistID: ${{ env.meta_gist_id }}
+          filename: cloc-code.json
+          label: Lines of Code
+          message: ${{ env.cloc_code }}
+
+      - name: Create badge for lines of comments
+        uses: Schneegans/dynamic-badges-action@v1.2.0
+        with:
+          auth: ${{ secrets.GIST_META_DATA }}
+          gistID: ${{ env.meta_gist_id }}
+          filename: cloc-comments.json
+          label: Comments
+          message: ${{ env.cloc_comments }} (${{ env.cloc_commentpercent }}%)
+
+      - name: Create badge for test coverage
+        uses: Schneegans/dynamic-badges-action@v1.2.0
+        with:
+          auth: ${{ secrets.GIST_META_DATA }}
+          gistID: ${{ env.meta_gist_id }}
+          filename: test-coverage.json
+          label: Coverage
+          message: ${{ needs.tests.outputs.coverage }}
diff --git a/README.md b/README.md
index 4f5bce2..14a6d81 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,29 @@
+[//]: # (This file is part of asyncio-taskpool.)
+
+[//]: # (asyncio-taskpool is free software: you can redistribute it and/or modify it under the terms of)
+[//]: # (version 3.0 of the GNU Lesser General Public License as published by the Free Software Foundation.)
+
+[//]: # (asyncio-taskpool is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;)
+[//]: # (without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.)
+[//]: # (See the GNU Lesser General Public License for more details.)
+
+[//]: # (You should have received a copy of the GNU Lesser General Public License along with asyncio-taskpool.)
+[//]: # (If not, see <https://www.gnu.org/licenses/>.)
+
 # asyncio-taskpool
 
+[![GitHub last commit][github-last-commit-img]][github-last-commit]
+![Lines of code][gist-cloc-code-img]
+![Lines of comments][gist-cloc-comments-img]
+![Test coverage][gist-test-coverage-img]
+[![License: LGPL v3.0][lgpl3-img]][lgpl3]
+
 **Dynamically manage pools of asyncio tasks**
 
+Full documentation available at [RtD](https://asyncio-taskpool.readthedocs.io/en/latest).
+
+---
+
 ## Contents
 - [Contents](#contents)
 - [Summary](#summary)
@@ -67,3 +89,11 @@ The full license texts for the [GNU GPLv3.0](COPYING) and the [GNU LGPLv3.0](COP
 ---
 
 © 2022 Daniil Fajnberg
+
+[github-last-commit]: https://github.com/daniil-berg/asyncio-taskpool/commits
+[github-last-commit-img]: https://img.shields.io/github/last-commit/daniil-berg/asyncio-taskpool?label=Last%20commit&logo=git&
+[gist-cloc-code-img]: https://img.shields.io/endpoint?logo=python&color=blue&url=https://gist.githubusercontent.com/daniil-berg/3f8240a976e8781a765d9c74a583dcda/raw/cloc-code.json
+[gist-cloc-comments-img]: https://img.shields.io/endpoint?logo=sharp&color=lightgrey&url=https://gist.githubusercontent.com/daniil-berg/3f8240a976e8781a765d9c74a583dcda/raw/cloc-comments.json
+[gist-test-coverage-img]: https://img.shields.io/endpoint?logo=pytest&color=blue&url=https://gist.githubusercontent.com/daniil-berg/3f8240a976e8781a765d9c74a583dcda/raw/test-coverage.json
+[lgpl3]: https://www.gnu.org/licenses/lgpl-3.0
+[lgpl3-img]: https://img.shields.io/badge/License-LGPL_v3.0-darkgreen.svg?logo=gnu
diff --git a/cloc.sh b/cloc.sh
new file mode 100755
index 0000000..eebfc52
--- /dev/null
+++ b/cloc.sh
@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+
+# This file is part of asyncio-taskpool.
+
+# asyncio-taskpool is free software: you can redistribute it and/or modify it under the terms of
+# version 3.0 of the GNU Lesser General Public License as published by the Free Software Foundation.
+
+# asyncio-taskpool is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+# without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the GNU Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public License along with asyncio-taskpool.
+# If not, see <https://www.gnu.org/licenses/>.
+
+typeset option
+if getopts 'bcmp' option; then
+  if [[ ${option} == [bcmp] ]]; then
+    shift
+  else
+    echo >&2 "Invalid option '$1' provided"
+    exit 1
+  fi
+fi
+
+typeset source=$1
+if [[ -z ${source} ]]; then
+  echo >&2 Source file/directory missing
+  exit 1
+fi
+
+typeset blank code comment commentpercent
+read blank comment code commentpercent < <( \
+  cloc --csv --quiet --hide-rate --include-lang Python ${source} |
+  awk -F, '$2 == "SUM" {printf ("%d %d %d %1.0f", $3, $4, $5, 100 * $4 / ($5 + $4)); exit}'
+)
+
+case ${option} in
+  b) echo ${blank} ;;
+  c) echo ${code} ;;
+  m) echo ${comment} ;;
+  p) echo ${commentpercent} ;;
+  *) echo Blank lines: ${blank}
+     echo Lines of comments: ${comment}
+     echo Lines of code: ${code}
+     echo Comment percentage: ${commentpercent} ;;
+esac
diff --git a/coverage.sh b/coverage.sh
index 786075e..c0e4597 100755
--- a/coverage.sh
+++ b/coverage.sh
@@ -1,3 +1,24 @@
-#!/usr/bin/env sh
+#!/usr/bin/env bash
 
-coverage erase && coverage run -m unittest discover && coverage report
+# This file is part of asyncio-taskpool.
+
+# asyncio-taskpool is free software: you can redistribute it and/or modify it under the terms of
+# version 3.0 of the GNU Lesser General Public License as published by the Free Software Foundation.
+
+# asyncio-taskpool is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
+# without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+# See the GNU Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public License along with asyncio-taskpool.
+# If not, see <https://www.gnu.org/licenses/>.
+
+coverage erase && coverage run -m unittest discover 2> /dev/null
+
+typeset total
+total=$(coverage report | awk '$1 == "TOTAL" {print $NF}')
+
+if [[ $total == 100% ]]; then
+  echo $total
+else
+  coverage report
+fi
diff --git a/setup.cfg b/setup.cfg
index f8bb68b..f141b17 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -25,7 +25,7 @@ classifiers =
 package_dir =
     = src
 packages = find:
-python_requires = >=3.8
+python_requires = >=3.9
 
 [options.extras_require]
 dev =
diff --git a/src/asyncio_taskpool/internals/types.py b/src/asyncio_taskpool/internals/types.py
index 69c6816..65dd98d 100644
--- a/src/asyncio_taskpool/internals/types.py
+++ b/src/asyncio_taskpool/internals/types.py
@@ -31,8 +31,8 @@ T = TypeVar('T')
 ArgsT = Iterable[Any]
 KwArgsT = Mapping[str, Any]
 
-AnyCallableT = Callable[[...], Union[T, Awaitable[T]]]
-CoroutineFunc = Callable[[...], Coroutine]
+AnyCallableT = Callable[..., Union[T, Awaitable[T]]]
+CoroutineFunc = Callable[..., Coroutine]
 
 EndCB = Callable
 CancelCB = Callable
diff --git a/src/asyncio_taskpool/pool.py b/src/asyncio_taskpool/pool.py
index 320144c..acc9522 100644
--- a/src/asyncio_taskpool/pool.py
+++ b/src/asyncio_taskpool/pool.py
@@ -640,7 +640,7 @@ class TaskPool(BaseTaskPool):
             kwargs (optional):
                 The keyword-arguments to pass into each function call.
             num (optional):
-                The number of tasks to spawn with the specified parameters.
+                The number of tasks to spawn with the specified parameters. Defaults to 1.
             group_name (optional):
                 Name of the task group to add the new tasks to. By default, a unique name is constructed in the form
                 :code:`'apply-{name}-group-{idx}'` (with `name` being the name of the `func` and `idx` being an
diff --git a/tests/__main__.py b/tests/__main__.py
new file mode 100644
index 0000000..3b17d90
--- /dev/null
+++ b/tests/__main__.py
@@ -0,0 +1,30 @@
+__author__ = "Daniil Fajnberg"
+__copyright__ = "Copyright © 2022 Daniil Fajnberg"
+__license__ = """GNU LGPLv3.0
+
+This file is part of asyncio-taskpool.
+
+asyncio-taskpool is free software: you can redistribute it and/or modify it under the terms of
+version 3.0 of the GNU Lesser General Public License as published by the Free Software Foundation.
+
+asyncio-taskpool is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
+without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 
+See the GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along with asyncio-taskpool. 
+If not, see <https://www.gnu.org/licenses/>."""
+
+__doc__ = """
+Main entry point for all unit tests.
+"""
+
+
+import sys
+import unittest
+
+
+if __name__ == '__main__':
+    test_suite = unittest.defaultTestLoader.discover('.')
+    test_runner = unittest.TextTestRunner(resultclass=unittest.TextTestResult)
+    result = test_runner.run(test_suite)
+    sys.exit(not result.wasSuccessful())