diff --git a/.git-blame-ignore-revs b/.git-blame-ignore-revs
new file mode 100644
index 0000000..d64e091
--- /dev/null
+++ b/.git-blame-ignore-revs
@@ -0,0 +1,4 @@
+# Apply Black v23.1.0 formatting changes.
+8a8bfce89de23d987386a35b659532bbac373788
+# Apply auto-formatting to tests.
+9ffcc5357150cecde26f5e6f8fccceaf92411efb
diff --git a/Dockerfile b/Dockerfile
index 7522a11..7be9b6c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM docker.io/library/python:3.10-alpine
+FROM docker.io/library/python:3.11-alpine
 
 RUN apk update --no-cache \
     && apk upgrade --no-cache \
@@ -11,20 +11,18 @@ WORKDIR /var/app
 
 COPY requirements.txt ./
 
-# Required to build greenlet on Alpine, dependency of SQLAlchemy 1.4.
-RUN apk add --no-cache \
-        --virtual .build-deps \
-        g++ gcc musl-dev \
-    && pip install --no-cache-dir --upgrade \
-        --requirement requirements.txt \
-    && apk del .build-deps
+RUN pip install --no-cache-dir --upgrade \
+        --requirement requirements.txt
 
 USER 10000:10001
 
 COPY . ./
 
 ENV UNWIND_DATA="/data"
-VOLUME ["/data"]
+VOLUME $UNWIND_DATA
+
+ENV UNWIND_PORT=8097
+EXPOSE $UNWIND_PORT
 
 ENTRYPOINT ["/var/app/run"]
 CMD ["server"]
diff --git a/poetry.lock b/poetry.lock
index 9405979..8ff7d02 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,13 +1,16 @@
+# This file is automatically @generated by Poetry 1.4.0 and should not be changed by hand.
+
 [[package]]
 name = "aiosqlite"
-version = "0.17.0"
+version = "0.18.0"
 description = "asyncio bridge to the standard sqlite3 module"
 category = "main"
 optional = false
-python-versions = ">=3.6"
-
-[package.dependencies]
-typing_extensions = ">=3.7.2"
+python-versions = ">=3.7"
+files = [
+    {file = "aiosqlite-0.18.0-py3-none-any.whl", hash = "sha256:c3511b841e3a2c5614900ba1d179f366826857586f78abd75e7cbeb88e75a557"},
+    {file = "aiosqlite-0.18.0.tar.gz", hash = "sha256:faa843ef5fb08bafe9a9b3859012d3d9d6f77ce3637899de20606b7fc39aa213"},
+]
 
 [[package]]
 name = "anyio"
@@ -16,6 +19,10 @@ description = "High level compatibility layer for multiple asynchronous event lo
 category = "main"
 optional = false
 python-versions = ">=3.6.2"
+files = [
+    {file = "anyio-3.6.2-py3-none-any.whl", hash = "sha256:fbbe32bd270d2a2ef3ed1c5d45041250284e31fc0a4df4a5a6071842051a51e3"},
+    {file = "anyio-3.6.2.tar.gz", hash = "sha256:25ea0d673ae30af41a0c442f81cf3b38c7e79fdc7b60335a4c14e05eb0947421"},
+]
 
 [package.dependencies]
 idna = ">=2.8"
@@ -28,25 +35,49 @@ trio = ["trio (>=0.16,<0.22)"]
 
 [[package]]
 name = "attrs"
-version = "22.1.0"
+version = "22.2.0"
 description = "Classes Without Boilerplate"
 category = "dev"
 optional = false
-python-versions = ">=3.5"
+python-versions = ">=3.6"
+files = [
+    {file = "attrs-22.2.0-py3-none-any.whl", hash = "sha256:29e95c7f6778868dbd49170f98f8818f78f3dc5e0e37c0b1f474e3561b240836"},
+    {file = "attrs-22.2.0.tar.gz", hash = "sha256:c9227bfc2f01993c03f68db37d1d15c9690188323c067c641f1a35ca58185f99"},
+]
 
 [package.extras]
-dev = ["cloudpickle", "coverage[toml] (>=5.0.2)", "furo", "hypothesis", "mypy (>=0.900,!=0.940)", "pre-commit", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins", "sphinx", "sphinx-notfound-page", "zope.interface"]
-docs = ["furo", "sphinx", "sphinx-notfound-page", "zope.interface"]
-tests = ["cloudpickle", "coverage[toml] (>=5.0.2)", "hypothesis", "mypy (>=0.900,!=0.940)", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins", "zope.interface"]
-tests_no_zope = ["cloudpickle", "coverage[toml] (>=5.0.2)", "hypothesis", "mypy (>=0.900,!=0.940)", "pympler", "pytest (>=4.3.0)", "pytest-mypy-plugins"]
+cov = ["attrs[tests]", "coverage-enable-subprocess", "coverage[toml] (>=5.3)"]
+dev = ["attrs[docs,tests]"]
+docs = ["furo", "myst-parser", "sphinx", "sphinx-notfound-page", "sphinxcontrib-towncrier", "towncrier", "zope.interface"]
+tests = ["attrs[tests-no-zope]", "zope.interface"]
+tests-no-zope = ["cloudpickle", "cloudpickle", "hypothesis", "hypothesis", "mypy (>=0.971,<0.990)", "mypy (>=0.971,<0.990)", "pympler", "pympler", "pytest (>=4.3.0)", "pytest (>=4.3.0)", "pytest-mypy-plugins", "pytest-mypy-plugins", "pytest-xdist[psutil]", "pytest-xdist[psutil]"]
+
+[[package]]
+name = "autoflake"
+version = "2.0.2"
+description = "Removes unused imports and unused variables"
+category = "dev"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "autoflake-2.0.2-py3-none-any.whl", hash = "sha256:a82d8efdcbbb7129a8a23238c529fb9d9919c562e26bb7963ea6890fbfff7d02"},
+    {file = "autoflake-2.0.2.tar.gz", hash = "sha256:e0164421ff13f805f08a023e249d84200bd00463d213b490906bfefa67e83830"},
+]
+
+[package.dependencies]
+pyflakes = ">=3.0.0"
 
 [[package]]
 name = "beautifulsoup4"
-version = "4.11.1"
+version = "4.11.2"
 description = "Screen-scraping library"
 category = "main"
 optional = false
 python-versions = ">=3.6.0"
+files = [
+    {file = "beautifulsoup4-4.11.2-py3-none-any.whl", hash = "sha256:0e79446b10b3ecb499c1556f7e228a53e64a2bfcebd455f370d8927cb5b59e39"},
+    {file = "beautifulsoup4-4.11.2.tar.gz", hash = "sha256:bc4bdda6717de5a2987436fb8d72f45dc90dd856bdfd512a1314ce90349a0106"},
+]
 
 [package.dependencies]
 soupsieve = ">1.2"
@@ -57,18 +88,45 @@ lxml = ["lxml"]
 
 [[package]]
 name = "black"
-version = "22.10.0"
+version = "23.1.0"
 description = "The uncompromising code formatter."
 category = "dev"
 optional = false
 python-versions = ">=3.7"
+files = [
+    {file = "black-23.1.0-cp310-cp310-macosx_10_16_arm64.whl", hash = "sha256:b6a92a41ee34b883b359998f0c8e6eb8e99803aa8bf3123bf2b2e6fec505a221"},
+    {file = "black-23.1.0-cp310-cp310-macosx_10_16_universal2.whl", hash = "sha256:57c18c5165c1dbe291d5306e53fb3988122890e57bd9b3dcb75f967f13411a26"},
+    {file = "black-23.1.0-cp310-cp310-macosx_10_16_x86_64.whl", hash = "sha256:9880d7d419bb7e709b37e28deb5e68a49227713b623c72b2b931028ea65f619b"},
+    {file = "black-23.1.0-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:e6663f91b6feca5d06f2ccd49a10f254f9298cc1f7f49c46e498a0771b507104"},
+    {file = "black-23.1.0-cp310-cp310-win_amd64.whl", hash = "sha256:9afd3f493666a0cd8f8df9a0200c6359ac53940cbde049dcb1a7eb6ee2dd7074"},
+    {file = "black-23.1.0-cp311-cp311-macosx_10_16_arm64.whl", hash = "sha256:bfffba28dc52a58f04492181392ee380e95262af14ee01d4bc7bb1b1c6ca8d27"},
+    {file = "black-23.1.0-cp311-cp311-macosx_10_16_universal2.whl", hash = "sha256:c1c476bc7b7d021321e7d93dc2cbd78ce103b84d5a4cf97ed535fbc0d6660648"},
+    {file = "black-23.1.0-cp311-cp311-macosx_10_16_x86_64.whl", hash = "sha256:382998821f58e5c8238d3166c492139573325287820963d2f7de4d518bd76958"},
+    {file = "black-23.1.0-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:2bf649fda611c8550ca9d7592b69f0637218c2369b7744694c5e4902873b2f3a"},
+    {file = "black-23.1.0-cp311-cp311-win_amd64.whl", hash = "sha256:121ca7f10b4a01fd99951234abdbd97728e1240be89fde18480ffac16503d481"},
+    {file = "black-23.1.0-cp37-cp37m-macosx_10_16_x86_64.whl", hash = "sha256:a8471939da5e824b891b25751955be52ee7f8a30a916d570a5ba8e0f2eb2ecad"},
+    {file = "black-23.1.0-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:8178318cb74f98bc571eef19068f6ab5613b3e59d4f47771582f04e175570ed8"},
+    {file = "black-23.1.0-cp37-cp37m-win_amd64.whl", hash = "sha256:a436e7881d33acaf2536c46a454bb964a50eff59b21b51c6ccf5a40601fbef24"},
+    {file = "black-23.1.0-cp38-cp38-macosx_10_16_arm64.whl", hash = "sha256:a59db0a2094d2259c554676403fa2fac3473ccf1354c1c63eccf7ae65aac8ab6"},
+    {file = "black-23.1.0-cp38-cp38-macosx_10_16_universal2.whl", hash = "sha256:0052dba51dec07ed029ed61b18183942043e00008ec65d5028814afaab9a22fd"},
+    {file = "black-23.1.0-cp38-cp38-macosx_10_16_x86_64.whl", hash = "sha256:49f7b39e30f326a34b5c9a4213213a6b221d7ae9d58ec70df1c4a307cf2a1580"},
+    {file = "black-23.1.0-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:162e37d49e93bd6eb6f1afc3e17a3d23a823042530c37c3c42eeeaf026f38468"},
+    {file = "black-23.1.0-cp38-cp38-win_amd64.whl", hash = "sha256:8b70eb40a78dfac24842458476135f9b99ab952dd3f2dab738c1881a9b38b753"},
+    {file = "black-23.1.0-cp39-cp39-macosx_10_16_arm64.whl", hash = "sha256:a29650759a6a0944e7cca036674655c2f0f63806ddecc45ed40b7b8aa314b651"},
+    {file = "black-23.1.0-cp39-cp39-macosx_10_16_universal2.whl", hash = "sha256:bb460c8561c8c1bec7824ecbc3ce085eb50005883a6203dcfb0122e95797ee06"},
+    {file = "black-23.1.0-cp39-cp39-macosx_10_16_x86_64.whl", hash = "sha256:c91dfc2c2a4e50df0026f88d2215e166616e0c80e86004d0003ece0488db2739"},
+    {file = "black-23.1.0-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:2a951cc83ab535d248c89f300eccbd625e80ab880fbcfb5ac8afb5f01a258ac9"},
+    {file = "black-23.1.0-cp39-cp39-win_amd64.whl", hash = "sha256:0680d4380db3719ebcfb2613f34e86c8e6d15ffeabcf8ec59355c5e7b85bb555"},
+    {file = "black-23.1.0-py3-none-any.whl", hash = "sha256:7a0f701d314cfa0896b9001df70a530eb2472babb76086344e688829efd97d32"},
+    {file = "black-23.1.0.tar.gz", hash = "sha256:b0bd97bea8903f5a2ba7219257a44e3f1f9d00073d6cc1add68f0beec69692ac"},
+]
 
 [package.dependencies]
 click = ">=8.0.0"
 mypy-extensions = ">=0.4.3"
+packaging = ">=22.0"
 pathspec = ">=0.9.0"
 platformdirs = ">=2"
-tomli = {version = ">=1.1.0", markers = "python_full_version < \"3.11.0a7\""}
 
 [package.extras]
 colorama = ["colorama (>=0.4.3)"]
@@ -78,22 +136,15 @@ uvloop = ["uvloop (>=0.15.2)"]
 
 [[package]]
 name = "certifi"
-version = "2022.9.24"
+version = "2022.12.7"
 description = "Python package for providing Mozilla's CA Bundle."
 category = "main"
 optional = false
 python-versions = ">=3.6"
-
-[[package]]
-name = "charset-normalizer"
-version = "2.1.1"
-description = "The Real First Universal Charset Detector. Open, modern and actively maintained alternative to Chardet."
-category = "main"
-optional = false
-python-versions = ">=3.6.0"
-
-[package.extras]
-unicode_backport = ["unicodedata2"]
+files = [
+    {file = "certifi-2022.12.7-py3-none-any.whl", hash = "sha256:4ad3232f5e926d6718ec31cfc1fcadfde020920e278684144551c91769c7bc18"},
+    {file = "certifi-2022.12.7.tar.gz", hash = "sha256:35824b4c3a97115964b408844d64aa14db1cc518f6562e8d7261699d1350a9e3"},
+]
 
 [[package]]
 name = "click"
@@ -102,29 +153,41 @@ description = "Composable command line interface toolkit"
 category = "main"
 optional = false
 python-versions = ">=3.7"
+files = [
+    {file = "click-8.1.3-py3-none-any.whl", hash = "sha256:bb4d8133cb15a609f44e8213d9b391b0809795062913b383c62be0ee95b1db48"},
+    {file = "click-8.1.3.tar.gz", hash = "sha256:7682dc8afb30297001674575ea00d1814d808d6a36af415a82bd481d37ba7b8e"},
+]
 
 [package.dependencies]
 colorama = {version = "*", markers = "platform_system == \"Windows\""}
 
 [[package]]
 name = "colorama"
-version = "0.4.5"
+version = "0.4.6"
 description = "Cross-platform colored terminal text."
 category = "main"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*,>=2.7"
+files = [
+    {file = "colorama-0.4.6-py2.py3-none-any.whl", hash = "sha256:4f1d9991f5acc0ca119f9d443620b77f9d6b33703e51011c16baf57afb285fc6"},
+    {file = "colorama-0.4.6.tar.gz", hash = "sha256:08695f5cb7ed6e0531a20572697297273c47b8cae5a63ffc6d6ed5c201be6e44"},
+]
 
 [[package]]
 name = "databases"
-version = "0.6.1"
+version = "0.7.0"
 description = "Async database support for Python."
 category = "main"
 optional = false
 python-versions = ">=3.7"
+files = [
+    {file = "databases-0.7.0-py3-none-any.whl", hash = "sha256:cf5da4b8a3e3cd038c459529725ebb64931cbbb7a091102664f20ef8f6cefd0d"},
+    {file = "databases-0.7.0.tar.gz", hash = "sha256:ea2d419d3d2eb80595b7ceb8f282056f080af62efe2fb9bcd83562f93ec4b674"},
+]
 
 [package.dependencies]
 aiosqlite = {version = "*", optional = true, markers = "extra == \"sqlite\""}
-sqlalchemy = ">=1.4,<1.5"
+sqlalchemy = ">=1.4.42,<1.5"
 
 [package.extras]
 aiomysql = ["aiomysql"]
@@ -138,14 +201,77 @@ sqlite = ["aiosqlite"]
 
 [[package]]
 name = "greenlet"
-version = "1.1.2"
+version = "2.0.2"
 description = "Lightweight in-process concurrent programming"
 category = "main"
 optional = false
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*"
+files = [
+    {file = "greenlet-2.0.2-cp27-cp27m-macosx_10_14_x86_64.whl", hash = "sha256:bdfea8c661e80d3c1c99ad7c3ff74e6e87184895bbaca6ee8cc61209f8b9b85d"},
+    {file = "greenlet-2.0.2-cp27-cp27m-manylinux2010_x86_64.whl", hash = "sha256:9d14b83fab60d5e8abe587d51c75b252bcc21683f24699ada8fb275d7712f5a9"},
+    {file = "greenlet-2.0.2-cp27-cp27m-win32.whl", hash = "sha256:6c3acb79b0bfd4fe733dff8bc62695283b57949ebcca05ae5c129eb606ff2d74"},
+    {file = "greenlet-2.0.2-cp27-cp27m-win_amd64.whl", hash = "sha256:283737e0da3f08bd637b5ad058507e578dd462db259f7f6e4c5c365ba4ee9343"},
+    {file = "greenlet-2.0.2-cp27-cp27mu-manylinux2010_x86_64.whl", hash = "sha256:d27ec7509b9c18b6d73f2f5ede2622441de812e7b1a80bbd446cb0633bd3d5ae"},
+    {file = "greenlet-2.0.2-cp310-cp310-macosx_11_0_x86_64.whl", hash = "sha256:30bcf80dda7f15ac77ba5af2b961bdd9dbc77fd4ac6105cee85b0d0a5fcf74df"},
+    {file = "greenlet-2.0.2-cp310-cp310-manylinux_2_17_aarch64.manylinux2014_aarch64.whl", hash = "sha256:26fbfce90728d82bc9e6c38ea4d038cba20b7faf8a0ca53a9c07b67318d46088"},
+    {file = "greenlet-2.0.2-cp310-cp310-manylinux_2_17_ppc64le.manylinux2014_ppc64le.whl", hash = "sha256:9190f09060ea4debddd24665d6804b995a9c122ef5917ab26e1566dcc712ceeb"},
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+    {file = "greenlet-2.0.2-cp39-cp39-musllinux_1_1_aarch64.whl", hash = "sha256:1a819eef4b0e0b96bb0d98d797bef17dc1b4a10e8d7446be32d1da33e095dbb8"},
+    {file = "greenlet-2.0.2-cp39-cp39-musllinux_1_1_x86_64.whl", hash = "sha256:7efde645ca1cc441d6dc4b48c0f7101e8d86b54c8530141b09fd31cef5149ec9"},
+    {file = "greenlet-2.0.2-cp39-cp39-win32.whl", hash = "sha256:ea9872c80c132f4663822dd2a08d404073a5a9b5ba6155bea72fb2a79d1093b5"},
+    {file = "greenlet-2.0.2-cp39-cp39-win_amd64.whl", hash = "sha256:db1a39669102a1d8d12b57de2bb7e2ec9066a6f2b3da35ae511ff93b01b5d564"},
+    {file = "greenlet-2.0.2.tar.gz", hash = "sha256:e7c8dc13af7db097bed64a051d2dd49e9f0af495c26995c00a9ee842690d34c0"},
+]
 
 [package.extras]
-docs = ["Sphinx"]
+docs = ["Sphinx", "docutils (<0.18)"]
+test = ["objgraph", "psutil"]
 
 [[package]]
 name = "h11"
@@ -154,6 +280,10 @@ description = "A pure-Python, bring-your-own-I/O implementation of HTTP/1.1"
 category = "main"
 optional = false
 python-versions = ">=3.7"
+files = [
+    {file = "h11-0.14.0-py3-none-any.whl", hash = "sha256:e3fe4ac4b851c468cc8363d500db52c2ead036020723024a109d37346efaa761"},
+    {file = "h11-0.14.0.tar.gz", hash = "sha256:8f19fbbe99e72420ff35c00b27a34cb9937e902a8b810e2c88300c6f0a3b699d"},
+]
 
 [[package]]
 name = "html5lib"
@@ -162,6 +292,10 @@ description = "HTML parser based on the WHATWG HTML specification"
 category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+files = [
+    {file = "html5lib-1.1-py2.py3-none-any.whl", hash = "sha256:0d78f8fde1c230e99fe37986a60526d7049ed4bf8a9fadbad5f00e22e58e041d"},
+    {file = "html5lib-1.1.tar.gz", hash = "sha256:b2e5b40261e20f354d198eae92afc10d750afb487ed5e50f9c4eaf07c184146f"},
+]
 
 [package.dependencies]
 six = ">=1.9"
@@ -173,6 +307,52 @@ chardet = ["chardet (>=2.2)"]
 genshi = ["genshi"]
 lxml = ["lxml"]
 
+[[package]]
+name = "httpcore"
+version = "0.16.3"
+description = "A minimal low-level HTTP client."
+category = "main"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "httpcore-0.16.3-py3-none-any.whl", hash = "sha256:da1fb708784a938aa084bde4feb8317056c55037247c787bd7e19eb2c2949dc0"},
+    {file = "httpcore-0.16.3.tar.gz", hash = "sha256:c5d6f04e2fc530f39e0c077e6a30caa53f1451096120f1f38b954afd0b17c0cb"},
+]
+
+[package.dependencies]
+anyio = ">=3.0,<5.0"
+certifi = "*"
+h11 = ">=0.13,<0.15"
+sniffio = ">=1.0.0,<2.0.0"
+
+[package.extras]
+http2 = ["h2 (>=3,<5)"]
+socks = ["socksio (>=1.0.0,<2.0.0)"]
+
+[[package]]
+name = "httpx"
+version = "0.23.3"
+description = "The next generation HTTP client."
+category = "main"
+optional = false
+python-versions = ">=3.7"
+files = [
+    {file = "httpx-0.23.3-py3-none-any.whl", hash = "sha256:a211fcce9b1254ea24f0cd6af9869b3d29aba40154e947d2a07bb499b3e310d6"},
+    {file = "httpx-0.23.3.tar.gz", hash = "sha256:9818458eb565bb54898ccb9b8b251a28785dd4a55afbc23d0eb410754fe7d0f9"},
+]
+
+[package.dependencies]
+certifi = "*"
+httpcore = ">=0.15.0,<0.17.0"
+rfc3986 = {version = ">=1.3,<2", extras = ["idna2008"]}
+sniffio = "*"
+
+[package.extras]
+brotli = ["brotli", "brotlicffi"]
+cli = ["click (>=8.0.0,<9.0.0)", "pygments (>=2.0.0,<3.0.0)", "rich (>=10,<13)"]
+http2 = ["h2 (>=3,<5)"]
+socks = ["socksio (>=1.0.0,<2.0.0)"]
+
 [[package]]
 name = "idna"
 version = "3.4"
@@ -180,36 +360,52 @@ description = "Internationalized Domain Names in Applications (IDNA)"
 category = "main"
 optional = false
 python-versions = ">=3.5"
+files = [
+    {file = "idna-3.4-py3-none-any.whl", hash = "sha256:90b77e79eaa3eba6de819a0c442c0b4ceefc341a7a2ab77d7562bf49f425c5c2"},
+    {file = "idna-3.4.tar.gz", hash = "sha256:814f528e8dead7d329833b91c5faa87d60bf71824cd12a7530b5526063d02cb4"},
+]
 
 [[package]]
 name = "iniconfig"
-version = "1.1.1"
-description = "iniconfig: brain-dead simple config-ini parsing"
+version = "2.0.0"
+description = "brain-dead simple config-ini parsing"
 category = "dev"
 optional = false
-python-versions = "*"
+python-versions = ">=3.7"
+files = [
+    {file = "iniconfig-2.0.0-py3-none-any.whl", hash = "sha256:b6a85871a79d2e3b22d2d1b94ac2824226a63c6b741c88f7ae975f18b6778374"},
+    {file = "iniconfig-2.0.0.tar.gz", hash = "sha256:2d91e135bf72d31a410b17c16da610a82cb55f6b0477d1a902134b24a455b8b3"},
+]
 
 [[package]]
 name = "isort"
-version = "5.10.1"
+version = "5.12.0"
 description = "A Python utility / library to sort Python imports."
 category = "dev"
 optional = false
-python-versions = ">=3.6.1,<4.0"
+python-versions = ">=3.8.0"
+files = [
+    {file = "isort-5.12.0-py3-none-any.whl", hash = "sha256:f84c2818376e66cf843d497486ea8fed8700b340f308f076c6fb1229dff318b6"},
+    {file = "isort-5.12.0.tar.gz", hash = "sha256:8bef7dde241278824a6d83f44a544709b065191b95b6e50894bdc722fcba0504"},
+]
 
 [package.extras]
-colors = ["colorama (>=0.4.3,<0.5.0)"]
-pipfile_deprecated_finder = ["pipreqs", "requirementslib"]
+colors = ["colorama (>=0.4.3)"]
+pipfile-deprecated-finder = ["pip-shims (>=0.5.2)", "pipreqs", "requirementslib"]
 plugins = ["setuptools"]
-requirements_deprecated_finder = ["pip-api", "pipreqs"]
+requirements-deprecated-finder = ["pip-api", "pipreqs"]
 
 [[package]]
 name = "mypy-extensions"
-version = "0.4.3"
-description = "Experimental type system extensions for programs checked with the mypy typechecker."
+version = "1.0.0"
+description = "Type system extensions for programs checked with the mypy type checker."
 category = "dev"
 optional = false
-python-versions = "*"
+python-versions = ">=3.5"
+files = [
+    {file = "mypy_extensions-1.0.0-py3-none-any.whl", hash = "sha256:4392f6c0eb8a5668a69e23d168ffa70f0be9ccfd32b5cc2d26a34ae5b844552d"},
+    {file = "mypy_extensions-1.0.0.tar.gz", hash = "sha256:75dbf8955dc00442a438fc4d0666508a9a97b6bd41aa2f0ffe9d2f2725af0782"},
+]
 
 [[package]]
 name = "nodeenv"
@@ -218,40 +414,53 @@ description = "Node.js virtual environment builder"
 category = "dev"
 optional = false
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,!=3.6.*"
+files = [
+    {file = "nodeenv-1.7.0-py2.py3-none-any.whl", hash = "sha256:27083a7b96a25f2f5e1d8cb4b6317ee8aeda3bdd121394e5ac54e498028a042e"},
+    {file = "nodeenv-1.7.0.tar.gz", hash = "sha256:e0e7f7dfb85fc5394c6fe1e8fa98131a2473e04311a45afb6508f7cf1836fa2b"},
+]
 
 [package.dependencies]
 setuptools = "*"
 
 [[package]]
 name = "packaging"
-version = "21.3"
+version = "23.0"
 description = "Core utilities for Python packages"
 category = "dev"
 optional = false
-python-versions = ">=3.6"
-
-[package.dependencies]
-pyparsing = ">=2.0.2,<3.0.5 || >3.0.5"
+python-versions = ">=3.7"
+files = [
+    {file = "packaging-23.0-py3-none-any.whl", hash = "sha256:714ac14496c3e68c99c29b00845f7a2b85f3bb6f1078fd9f72fd20f0570002b2"},
+    {file = "packaging-23.0.tar.gz", hash = "sha256:b6ad297f8907de0fa2fe1ccbd26fdaf387f5f47c7275fedf8cce89f99446cf97"},
+]
 
 [[package]]
 name = "pathspec"
-version = "0.10.1"
+version = "0.11.1"
 description = "Utility library for gitignore style pattern matching of file paths."
 category = "dev"
 optional = false
 python-versions = ">=3.7"
+files = [
+    {file = "pathspec-0.11.1-py3-none-any.whl", hash = "sha256:d8af70af76652554bd134c22b3e8a1cc46ed7d91edcdd721ef1a0c51a84a5293"},
+    {file = "pathspec-0.11.1.tar.gz", hash = "sha256:2798de800fa92780e33acca925945e9a19a133b715067cf165b8866c15a31687"},
+]
 
 [[package]]
 name = "platformdirs"
-version = "2.5.2"
-description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
+version = "3.1.1"
+description = "A small Python package for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
 category = "dev"
 optional = false
 python-versions = ">=3.7"
+files = [
+    {file = "platformdirs-3.1.1-py3-none-any.whl", hash = "sha256:e5986afb596e4bb5bde29a79ac9061aa955b94fca2399b7aaac4090860920dd8"},
+    {file = "platformdirs-3.1.1.tar.gz", hash = "sha256:024996549ee88ec1a9aa99ff7f8fc819bb59e2c3477b410d90a16d32d6e707aa"},
+]
 
 [package.extras]
-docs = ["furo (>=2021.7.5b38)", "proselint (>=0.10.2)", "sphinx (>=4)", "sphinx-autodoc-typehints (>=1.12)"]
-test = ["appdirs (==1.4.4)", "pytest (>=6)", "pytest-cov (>=2.7)", "pytest-mock (>=3.6)"]
+docs = ["furo (>=2022.12.7)", "proselint (>=0.13)", "sphinx (>=6.1.3)", "sphinx-autodoc-typehints (>=1.22,!=1.23.4)"]
+test = ["appdirs (==1.4.4)", "covdefaults (>=2.2.2)", "pytest (>=7.2.1)", "pytest-cov (>=4)", "pytest-mock (>=3.10)"]
 
 [[package]]
 name = "pluggy"
@@ -260,37 +469,38 @@ description = "plugin and hook calling mechanisms for python"
 category = "dev"
 optional = false
 python-versions = ">=3.6"
+files = [
+    {file = "pluggy-1.0.0-py2.py3-none-any.whl", hash = "sha256:74134bbf457f031a36d68416e1509f34bd5ccc019f0bcc952c7b909d06b37bd3"},
+    {file = "pluggy-1.0.0.tar.gz", hash = "sha256:4224373bacce55f955a878bf9cfa763c1e360858e330072059e10bad68531159"},
+]
 
 [package.extras]
 dev = ["pre-commit", "tox"]
 testing = ["pytest", "pytest-benchmark"]
 
 [[package]]
-name = "py"
-version = "1.11.0"
-description = "library with cross-python path, ini-parsing, io, code, log facilities"
+name = "pyflakes"
+version = "3.0.1"
+description = "passive checker of Python programs"
 category = "dev"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-
-[[package]]
-name = "pyparsing"
-version = "3.0.9"
-description = "pyparsing module - Classes and methods to define and execute parsing grammars"
-category = "dev"
-optional = false
-python-versions = ">=3.6.8"
-
-[package.extras]
-diagrams = ["jinja2", "railroad-diagrams"]
+python-versions = ">=3.6"
+files = [
+    {file = "pyflakes-3.0.1-py2.py3-none-any.whl", hash = "sha256:ec55bf7fe21fff7f1ad2f7da62363d749e2a470500eab1b555334b67aa1ef8cf"},
+    {file = "pyflakes-3.0.1.tar.gz", hash = "sha256:ec8b276a6b60bd80defed25add7e439881c19e64850afd9b346283d4165fd0fd"},
+]
 
 [[package]]
 name = "pyright"
-version = "1.1.276"
+version = "1.1.299"
 description = "Command line wrapper for pyright"
 category = "dev"
 optional = false
 python-versions = ">=3.7"
+files = [
+    {file = "pyright-1.1.299-py3-none-any.whl", hash = "sha256:f34dfd0c2fcade34f9878b1fc69cb9456476dc78227e0a2fa046107ec55c0235"},
+    {file = "pyright-1.1.299.tar.gz", hash = "sha256:b3a9a6affa1252c52793e8663ade59ff966f8495ecfad6328deffe59cfc5a9a9"},
+]
 
 [package.dependencies]
 nodeenv = ">=1.6.0"
@@ -301,11 +511,15 @@ dev = ["twine (>=3.4.1)"]
 
 [[package]]
 name = "pytest"
-version = "7.1.3"
+version = "7.2.2"
 description = "pytest: simple powerful testing with Python"
 category = "dev"
 optional = false
 python-versions = ">=3.7"
+files = [
+    {file = "pytest-7.2.2-py3-none-any.whl", hash = "sha256:130328f552dcfac0b1cec75c12e3f005619dc5f874f0a06e8ff7263f0ee6225e"},
+    {file = "pytest-7.2.2.tar.gz", hash = "sha256:c99ab0c73aceb050f68929bc93af19ab6db0558791c6a0715723abe9d0ade9d4"},
+]
 
 [package.dependencies]
 attrs = ">=19.2.0"
@@ -313,55 +527,62 @@ colorama = {version = "*", markers = "sys_platform == \"win32\""}
 iniconfig = "*"
 packaging = "*"
 pluggy = ">=0.12,<2.0"
-py = ">=1.8.2"
-tomli = ">=1.0.0"
 
 [package.extras]
 testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "pygments (>=2.7.2)", "requests", "xmlschema"]
 
 [[package]]
 name = "pytest-asyncio"
-version = "0.20.1"
+version = "0.20.3"
 description = "Pytest support for asyncio"
 category = "dev"
 optional = false
 python-versions = ">=3.7"
+files = [
+    {file = "pytest-asyncio-0.20.3.tar.gz", hash = "sha256:83cbf01169ce3e8eb71c6c278ccb0574d1a7a3bb8eaaf5e50e0ad342afb33b36"},
+    {file = "pytest_asyncio-0.20.3-py3-none-any.whl", hash = "sha256:f129998b209d04fcc65c96fc85c11e5316738358909a8399e93be553d7656442"},
+]
 
 [package.dependencies]
 pytest = ">=6.1.0"
 
 [package.extras]
+docs = ["sphinx (>=5.3)", "sphinx-rtd-theme (>=1.0)"]
 testing = ["coverage (>=6.2)", "flaky (>=3.5.0)", "hypothesis (>=5.7.1)", "mypy (>=0.931)", "pytest-trio (>=0.7.0)"]
 
 [[package]]
-name = "requests"
-version = "2.28.1"
-description = "Python HTTP for Humans."
+name = "rfc3986"
+version = "1.5.0"
+description = "Validating URI References per RFC 3986"
 category = "main"
 optional = false
-python-versions = ">=3.7, <4"
+python-versions = "*"
+files = [
+    {file = "rfc3986-1.5.0-py2.py3-none-any.whl", hash = "sha256:a86d6e1f5b1dc238b218b012df0aa79409667bb209e58da56d0b94704e712a97"},
+    {file = "rfc3986-1.5.0.tar.gz", hash = "sha256:270aaf10d87d0d4e095063c65bf3ddbc6ee3d0b226328ce21e036f946e421835"},
+]
 
 [package.dependencies]
-certifi = ">=2017.4.17"
-charset-normalizer = ">=2,<3"
-idna = ">=2.5,<4"
-urllib3 = ">=1.21.1,<1.27"
+idna = {version = "*", optional = true, markers = "extra == \"idna2008\""}
 
 [package.extras]
-socks = ["PySocks (>=1.5.6,!=1.5.7)"]
-use_chardet_on_py3 = ["chardet (>=3.0.2,<6)"]
+idna2008 = ["idna"]
 
 [[package]]
 name = "setuptools"
-version = "65.5.0"
+version = "67.6.0"
 description = "Easily download, build, install, upgrade, and uninstall Python packages"
 category = "dev"
 optional = false
 python-versions = ">=3.7"
+files = [
+    {file = "setuptools-67.6.0-py3-none-any.whl", hash = "sha256:b78aaa36f6b90a074c1fa651168723acbf45d14cb1196b6f02c0fd07f17623b2"},
+    {file = "setuptools-67.6.0.tar.gz", hash = "sha256:2ee892cd5f29f3373097f5a814697e397cf3ce313616df0af11231e2ad118077"},
+]
 
 [package.extras]
-docs = ["furo", "jaraco.packaging (>=9)", "jaraco.tidelift (>=1.4)", "pygments-github-lexers (==0.0.5)", "rst.linker (>=1.9)", "sphinx (>=3.5)", "sphinx-favicon", "sphinx-hoverxref (<2)", "sphinx-inline-tabs", "sphinx-notfound-page (==0.8.3)", "sphinx-reredirects", "sphinxcontrib-towncrier"]
-testing = ["build[virtualenv]", "filelock (>=3.4.0)", "flake8 (<5)", "flake8-2020", "ini2toml[lite] (>=0.9)", "jaraco.envs (>=2.2)", "jaraco.path (>=3.2.0)", "mock", "pip (>=19.1)", "pip-run (>=8.8)", "pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=1.3)", "pytest-flake8", "pytest-mypy (>=0.9.1)", "pytest-perf", "pytest-xdist", "tomli-w (>=1.0.0)", "virtualenv (>=13.0.0)", "wheel"]
+docs = ["furo", "jaraco.packaging (>=9)", "jaraco.tidelift (>=1.4)", "pygments-github-lexers (==0.0.5)", "rst.linker (>=1.9)", "sphinx (>=3.5)", "sphinx-favicon", "sphinx-hoverxref (<2)", "sphinx-inline-tabs", "sphinx-lint", "sphinx-notfound-page (==0.8.3)", "sphinx-reredirects", "sphinxcontrib-towncrier"]
+testing = ["build[virtualenv]", "filelock (>=3.4.0)", "flake8 (<5)", "flake8-2020", "ini2toml[lite] (>=0.9)", "jaraco.envs (>=2.2)", "jaraco.path (>=3.2.0)", "pip (>=19.1)", "pip-run (>=8.8)", "pytest (>=6)", "pytest-black (>=0.3.7)", "pytest-checkdocs (>=2.4)", "pytest-cov", "pytest-enabler (>=1.3)", "pytest-flake8", "pytest-mypy (>=0.9.1)", "pytest-perf", "pytest-timeout", "pytest-xdist", "tomli-w (>=1.0.0)", "virtualenv (>=13.0.0)", "wheel"]
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 [[package]]
@@ -371,6 +592,10 @@ description = "Python 2 and 3 compatibility utilities"
 category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
+files = [
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+]
 
 [[package]]
 name = "sniffio"
@@ -379,84 +604,115 @@ description = "Sniff out which async library your code is running under"
 category = "main"
 optional = false
 python-versions = ">=3.7"
+files = [
+    {file = "sniffio-1.3.0-py3-none-any.whl", hash = "sha256:eecefdce1e5bbfb7ad2eeaabf7c1eeb404d7757c379bd1f7e5cce9d8bf425384"},
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+]
 
 [[package]]
 name = "soupsieve"
-version = "2.3.2.post1"
+version = "2.4"
 description = "A modern CSS selector implementation for Beautiful Soup."
 category = "main"
 optional = false
-python-versions = ">=3.6"
+python-versions = ">=3.7"
+files = [
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+]
 
 [[package]]
-name = "SQLAlchemy"
-version = "1.4.25"
+name = "sqlalchemy"
+version = "1.4.46"
 description = "Database Abstraction Library"
 category = "main"
 optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*,>=2.7"
+files = [
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+]
 
 [package.dependencies]
-greenlet = {version = "!=0.4.17", markers = "python_version >= \"3\" and (platform_machine == \"aarch64\" or platform_machine == \"ppc64le\" or platform_machine == \"x86_64\" or platform_machine == \"amd64\" or platform_machine == \"AMD64\" or platform_machine == \"win32\" or platform_machine == \"WIN32\")"}
+greenlet = {version = "!=0.4.17", markers = "python_version >= \"3\" and platform_machine == \"aarch64\" or python_version >= \"3\" and platform_machine == \"ppc64le\" or python_version >= \"3\" and platform_machine == \"x86_64\" or python_version >= \"3\" and platform_machine == \"amd64\" or python_version >= \"3\" and platform_machine == \"AMD64\" or python_version >= \"3\" and platform_machine == \"win32\" or python_version >= \"3\" and platform_machine == \"WIN32\""}
 
 [package.extras]
 aiomysql = ["aiomysql", "greenlet (!=0.4.17)"]
-aiosqlite = ["aiosqlite", "greenlet (!=0.4.17)", "typing_extensions (!=3.10.0.1)"]
+aiosqlite = ["aiosqlite", "greenlet (!=0.4.17)", "typing-extensions (!=3.10.0.1)"]
 asyncio = ["greenlet (!=0.4.17)"]
-asyncmy = ["asyncmy (>=0.2.0)", "greenlet (!=0.4.17)"]
-mariadb_connector = ["mariadb (>=1.0.1)"]
+asyncmy = ["asyncmy (>=0.2.3,!=0.2.4)", "greenlet (!=0.4.17)"]
+mariadb-connector = ["mariadb (>=1.0.1,!=1.1.2)"]
 mssql = ["pyodbc"]
-mssql_pymssql = ["pymssql"]
-mssql_pyodbc = ["pyodbc"]
+mssql-pymssql = ["pymssql"]
+mssql-pyodbc = ["pyodbc"]
 mypy = ["mypy (>=0.910)", "sqlalchemy2-stubs"]
 mysql = ["mysqlclient (>=1.4.0)", "mysqlclient (>=1.4.0,<2)"]
-mysql_connector = ["mysql-connector-python"]
-oracle = ["cx_oracle (>=7)", "cx_oracle (>=7,<8)"]
+mysql-connector = ["mysql-connector-python"]
+oracle = ["cx-oracle (>=7)", "cx-oracle (>=7,<8)"]
 postgresql = ["psycopg2 (>=2.7)"]
-postgresql_asyncpg = ["asyncpg", "greenlet (!=0.4.17)"]
-postgresql_pg8000 = ["pg8000 (>=1.16.6)"]
-postgresql_psycopg2binary = ["psycopg2-binary"]
-postgresql_psycopg2cffi = ["psycopg2cffi"]
+postgresql-asyncpg = ["asyncpg", "greenlet (!=0.4.17)"]
+postgresql-pg8000 = ["pg8000 (>=1.16.6,!=1.29.0)"]
+postgresql-psycopg2binary = ["psycopg2-binary"]
+postgresql-psycopg2cffi = ["psycopg2cffi"]
 pymysql = ["pymysql", "pymysql (<1)"]
-sqlcipher = ["sqlcipher3_binary"]
+sqlcipher = ["sqlcipher3-binary"]
 
 [[package]]
 name = "starlette"
-version = "0.17.1"
+version = "0.26.1"
 description = "The little ASGI library that shines."
 category = "main"
 optional = false
-python-versions = ">=3.6"
+python-versions = ">=3.7"
+files = [
+    {file = "starlette-0.26.1-py3-none-any.whl", hash = "sha256:e87fce5d7cbdde34b76f0ac69013fd9d190d581d80681493016666e6f96c6d5e"},
+    {file = "starlette-0.26.1.tar.gz", hash = "sha256:41da799057ea8620e4667a3e69a5b1923ebd32b1819c8fa75634bbe8d8bea9bd"},
+]
 
 [package.dependencies]
-anyio = ">=3.0.0,<4"
+anyio = ">=3.4.0,<5"
 
 [package.extras]
-full = ["itsdangerous", "jinja2", "python-multipart", "pyyaml", "requests"]
-
-[[package]]
-name = "toml"
-version = "0.10.2"
-description = "Python Library for Tom's Obvious, Minimal Language"
-category = "main"
-optional = false
-python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
-
-[[package]]
-name = "tomli"
-version = "2.0.1"
-description = "A lil' TOML parser"
-category = "dev"
-optional = false
-python-versions = ">=3.7"
-
-[[package]]
-name = "typing-extensions"
-version = "4.4.0"
-description = "Backported and Experimental Type Hints for Python 3.7+"
-category = "main"
-optional = false
-python-versions = ">=3.7"
+full = ["httpx (>=0.22.0)", "itsdangerous", "jinja2", "python-multipart", "pyyaml"]
 
 [[package]]
 name = "ulid-py"
@@ -465,34 +721,29 @@ description = "Universally Unique Lexicographically Sortable Identifier"
 category = "main"
 optional = false
 python-versions = "*"
-
-[[package]]
-name = "urllib3"
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+
+[metadata]
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diff --git a/pyproject.toml b/pyproject.toml
index 60d94b3..08c45e9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,26 +6,20 @@ authors = ["ducklet <ducklet@noreply.code.dumpr.org>"]
 license = "LOL"
 
 [tool.poetry.dependencies]
-python = "^3.10"
-requests = "^2.25.1"
+python = "^3.11"
 beautifulsoup4 = "^4.9.3"
 html5lib = "^1.1"
-starlette = "^0.17.0"
+starlette = "^0.26"
 ulid-py = "^1.1.0"
-databases = {extras = ["sqlite"], version = "^0.6.1"}
-toml = "^0.10.2"
-uvicorn = "^0.19.0"
-
-[tool.poetry.group.fixes.dependencies]
-# `databases` is having issues with new versions of SQLAlchemy 1.4,
-# and `greenlet` is also always a pain.
-SQLAlchemy = "1.4.25"
-greenlet = "1.1.2"
+databases = {extras = ["sqlite"], version = "^0.7.0"}
+uvicorn = "^0.21"
+httpx = "^0.23.3"
 
 [tool.poetry.group.dev]
 optional = true
 
 [tool.poetry.group.dev.dependencies]
+autoflake = "*"
 pytest = "*"
 pyright = "*"
 black = "*"
@@ -37,4 +31,14 @@ requires = ["poetry-core>=1.0.0"]
 build-backend = "poetry.core.masonry.api"
 
 [tool.pyright]
-pythonVersion = "3.10"
+pythonVersion = "3.11"
+
+[tool.isort]
+profile = "black"
+
+[tool.autoflake]
+remove-duplicate-keys = true
+remove-unused-variables = true
+remove-all-unused-imports = true
+ignore-init-module-imports = true
+ignore-pass-after-docstring = true
diff --git a/scripts/lint-py b/scripts/lint-py
index 84a4c65..54cb0f2 100755
--- a/scripts/lint-py
+++ b/scripts/lint-py
@@ -4,6 +4,7 @@ cd "$RUN_DIR"
 
 [ -z "${DEBUG:-}" ] || set -x
 
-isort --profile black unwind
-black unwind
+autoflake --quiet --check --recursive unwind tests
+isort unwind tests
+black unwind tests
 pyright
diff --git a/scripts/profile b/scripts/profile
new file mode 100755
index 0000000..ccbfc70
--- /dev/null
+++ b/scripts/profile
@@ -0,0 +1,13 @@
+#!/bin/sh -eu
+
+cd "$RUN_DIR"
+
+outfile="profile-$(date '+%Y%m%d-%H%M%S').txt"
+
+[ -z "${DEBUG:-}" ] || set -x
+
+echo "# Writing profiler stats to: $outfile"
+python -m cProfile -o "$outfile" -m unwind "$@"
+
+echo "# Loading stats file: $outfile"
+python -m pstats "$outfile"
diff --git a/scripts/server b/scripts/server
index 5440717..599cb7f 100755
--- a/scripts/server
+++ b/scripts/server
@@ -1,7 +1,14 @@
 #!/bin/sh -eu
 
+: "${UNWIND_PORT:=8097}"
+
 cd "$RUN_DIR"
 
 [ -z "${DEBUG:-}" ] || set -x
 
-exec uvicorn --host 0.0.0.0 --factory unwind:create_app
+export UNWIND_PORT
+
+exec uvicorn \
+    --host 0.0.0.0 \
+    --port "$UNWIND_PORT" \
+    --factory unwind:create_app
diff --git a/scripts/tests b/scripts/tests
index 4237558..df8b5a0 100755
--- a/scripts/tests
+++ b/scripts/tests
@@ -10,5 +10,6 @@ trap 'rm "$dbfile"' EXIT TERM INT QUIT
 
 [ -z "${DEBUG:-}" ] || set -x
 
+SQLALCHEMY_WARN_20=1 \
 UNWIND_STORAGE="$dbfile" \
     python -m pytest "$@"
diff --git a/tests/conftest.py b/tests/conftest.py
index 0fd79ea..e57d3e1 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -1,6 +1,8 @@
 import asyncio
 
 import pytest
+import pytest_asyncio
+
 from unwind import db
 
 
@@ -13,7 +15,7 @@ def event_loop():
     loop.close()
 
 
-@pytest.fixture(scope="session")
+@pytest_asyncio.fixture(scope="session")
 async def shared_conn():
     c = db.shared_connection()
     await c.connect()
@@ -24,7 +26,7 @@ async def shared_conn():
     await c.disconnect()
 
 
-@pytest.fixture
+@pytest_asyncio.fixture
 async def conn(shared_conn):
     async with shared_conn.transaction(force_rollback=True):
         yield shared_conn
diff --git a/tests/test_db.py b/tests/test_db.py
index caeaf69..ac8e64b 100644
--- a/tests/test_db.py
+++ b/tests/test_db.py
@@ -1,14 +1,13 @@
 from datetime import datetime
+
 import pytest
 
 from unwind import db, models, web_models
 
-pytestmark = pytest.mark.asyncio
 
-
-async def test_add_and_get(shared_conn):
+@pytest.mark.asyncio
+async def test_add_and_get(shared_conn: db.Database):
     async with shared_conn.transaction(force_rollback=True):
-
         m1 = models.Movie(
             title="test movie",
             release_year=2013,
@@ -31,9 +30,9 @@ async def test_add_and_get(shared_conn):
         assert m2 == await db.get(models.Movie, id=str(m2.id))
 
 
-async def test_find_ratings(shared_conn):
+@pytest.mark.asyncio
+async def test_find_ratings(shared_conn: db.Database):
     async with shared_conn.transaction(force_rollback=True):
-
         m1 = models.Movie(
             title="test movie",
             release_year=2013,
@@ -157,4 +156,3 @@ async def test_find_ratings(shared_conn):
         rows = await db.find_ratings(title="test", include_unrated=True)
         ratings = tuple(web_models.Rating(**r) for r in rows)
         assert (web_models.Rating.from_movie(m1),) == ratings
-
diff --git a/tests/test_imdb.py b/tests/test_imdb.py
index 13a03fd..00467ce 100644
--- a/tests/test_imdb.py
+++ b/tests/test_imdb.py
@@ -1,14 +1,15 @@
 import pytest
+
 from unwind.imdb import imdb_rating_from_score, score_from_imdb_rating
 
 
 @pytest.mark.parametrize("rating", (x / 10 for x in range(10, 101)))
-def test_rating_conversion(rating):
+def test_rating_conversion(rating: float):
     assert rating == imdb_rating_from_score(score_from_imdb_rating(rating))
 
 
 @pytest.mark.parametrize("score", range(0, 101))
-def test_score_conversion(score):
+def test_score_conversion(score: int):
     # Because our score covers 101 discrete values and IMDb's rating only 91
     # discrete values, the mapping is non-injective, i.e. 10 values can't be
     # mapped uniquely.
diff --git a/tests/test_web.py b/tests/test_web.py
index 55c2d23..358c2a2 100644
--- a/tests/test_web.py
+++ b/tests/test_web.py
@@ -1,18 +1,14 @@
-from starlette.testclient import TestClient
 import pytest
+from starlette.testclient import TestClient
 
-from unwind import create_app
-from unwind import db, models, imdb
-
-# https://pypi.org/project/pytest-asyncio/
-pytestmark = pytest.mark.asyncio
+from unwind import create_app, db, imdb, models
 
 app = create_app()
 
 
-async def test_app(shared_conn):
+@pytest.mark.asyncio
+async def test_app(shared_conn: db.Database):
     async with shared_conn.transaction(force_rollback=True):
-
         # https://www.starlette.io/testclient/
         client = TestClient(app)
         response = client.get("/api/v1/movies")
diff --git a/unwind/__main__.py b/unwind/__main__.py
index 983ede7..e802831 100644
--- a/unwind/__main__.py
+++ b/unwind/__main__.py
@@ -6,7 +6,7 @@ from pathlib import Path
 from . import config
 from .db import close_connection_pool, open_connection_pool
 from .imdb import refresh_user_ratings_from_imdb
-from .imdb_import import import_from_file
+from .imdb_import import download_datasets, import_from_file
 
 log = logging.getLogger(__name__)
 
@@ -15,7 +15,7 @@ async def run_load_user_ratings_from_imdb():
     await open_connection_pool()
 
     i = 0
-    async for rating in refresh_user_ratings_from_imdb():
+    async for _ in refresh_user_ratings_from_imdb():
         i += 1
 
     log.info("✨ Imported %s new ratings.", i)
@@ -31,6 +31,10 @@ async def run_import_imdb_dataset(basics_path: Path, ratings_path: Path):
     await close_connection_pool()
 
 
+async def run_download_imdb_dataset(basics_path: Path, ratings_path: Path):
+    await download_datasets(basics_path=basics_path, ratings_path=ratings_path)
+
+
 def getargs():
     parser = argparse.ArgumentParser()
     commands = parser.add_subparsers(required=True)
@@ -55,6 +59,25 @@ def getargs():
         "--ratings", metavar="ratings_file.tsv.gz", type=Path, required=True
     )
 
+    parser_download_imdb_dataset = commands.add_parser(
+        "download-imdb-dataset",
+        help="Download IMDb datasets.",
+        description="""
+            Download IMDb datasets.
+        """,
+    )
+    parser_download_imdb_dataset.add_argument(
+        dest="mode",
+        action="store_const",
+        const="download-imdb-dataset",
+    )
+    parser_download_imdb_dataset.add_argument(
+        "--basics", metavar="basics_file.tsv.gz", type=Path, required=True
+    )
+    parser_download_imdb_dataset.add_argument(
+        "--ratings", metavar="ratings_file.tsv.gz", type=Path, required=True
+    )
+
     parser_load_user_ratings_from_imdb = commands.add_parser(
         "load-user-ratings-from-imdb",
         help="Load user ratings from imdb.com.",
@@ -94,6 +117,8 @@ def main():
         asyncio.run(run_load_user_ratings_from_imdb())
     elif args.mode == "import-imdb-dataset":
         asyncio.run(run_import_imdb_dataset(args.basics, args.ratings))
+    elif args.mode == "download-imdb-dataset":
+        asyncio.run(run_download_imdb_dataset(args.basics, args.ratings))
 
 
 main()
diff --git a/unwind/config.py b/unwind/config.py
index 6382cf5..6cc255a 100644
--- a/unwind/config.py
+++ b/unwind/config.py
@@ -1,8 +1,7 @@
 import os
+import tomllib
 from pathlib import Path
 
-import toml
-
 datadir = Path(os.getenv("UNWIND_DATA") or "./data")
 cachedir = (
     Path(cachedir)
@@ -14,7 +13,8 @@ loglevel = os.getenv("UNWIND_LOGLEVEL") or ("DEBUG" if debug else "INFO")
 storage_path = os.getenv("UNWIND_STORAGE", datadir / "db.sqlite")
 config_path = os.getenv("UNWIND_CONFIG", datadir / "config.toml")
 
-_config = toml.load(config_path)
+with open(config_path, "rb") as fd:
+    _config = tomllib.load(fd)
 
 api_base = _config["api"].get("base", "/api/")
 api_cors = _config["api"].get("cors", "*")
diff --git a/unwind/db.py b/unwind/db.py
index 13217e9..c07b3a9 100644
--- a/unwind/db.py
+++ b/unwind/db.py
@@ -4,7 +4,7 @@ import logging
 import re
 import threading
 from pathlib import Path
-from typing import Any, Iterable, Literal, Optional, Type, TypeVar, Union
+from typing import Any, Iterable, Literal, Type, TypeVar
 
 import sqlalchemy
 from databases import Database
@@ -26,7 +26,7 @@ from .types import ULID
 log = logging.getLogger(__name__)
 T = TypeVar("T")
 
-_shared_connection: Optional[Database] = None
+_shared_connection: Database | None = None
 
 
 async def open_connection_pool() -> None:
@@ -119,7 +119,6 @@ async def apply_db_patches(db: Database):
             raise RuntimeError("No statement found.")
 
         async with db.transaction():
-
             for query in queries:
                 await db.execute(query)
 
@@ -131,12 +130,12 @@ async def apply_db_patches(db: Database):
         await db.execute("vacuum")
 
 
-async def get_import_progress() -> Optional[Progress]:
+async def get_import_progress() -> Progress | None:
     """Return the latest import progress."""
     return await get(Progress, type="import-imdb-movies", order_by="started DESC")
 
 
-async def stop_import_progress(*, error: BaseException = None):
+async def stop_import_progress(*, error: BaseException | None = None):
     """Stop the current import.
 
     If an error is given, it will be logged to the progress state.
@@ -176,6 +175,8 @@ async def set_import_progress(progress: float) -> Progress:
     else:
         await add(current)
 
+    return current
+
 
 _lock = threading.Lock()
 _prelock = threading.Lock()
@@ -243,8 +244,8 @@ ModelType = TypeVar("ModelType")
 
 
 async def get(
-    model: Type[ModelType], *, order_by: str = None, **kwds
-) -> Optional[ModelType]:
+    model: Type[ModelType], *, order_by: str | None = None, **kwds
+) -> ModelType | None:
     """Load a model instance from the database.
 
     Passing `kwds` allows to filter the instance to load. You have to encode the
@@ -262,7 +263,7 @@ async def get(
         query += f" ORDER BY {order_by}"
     async with locked_connection() as conn:
         row = await conn.fetch_one(query=query, values=values)
-    return fromplain(model, row, serialized=True) if row else None
+    return fromplain(model, row._mapping, serialized=True) if row else None
 
 
 async def get_many(model: Type[ModelType], **kwds) -> Iterable[ModelType]:
@@ -282,7 +283,7 @@ async def get_many(model: Type[ModelType], **kwds) -> Iterable[ModelType]:
     query = f"SELECT {fields_} FROM {model._table} WHERE {cond}"
     async with locked_connection() as conn:
         rows = await conn.fetch_all(query=query, values=values)
-    return (fromplain(model, row, serialized=True) for row in rows)
+    return (fromplain(model, row._mapping, serialized=True) for row in rows)
 
 
 async def get_all(model: Type[ModelType], **kwds) -> Iterable[ModelType]:
@@ -293,7 +294,7 @@ async def get_all(model: Type[ModelType], **kwds) -> Iterable[ModelType]:
     query = f"SELECT {fields_} FROM {model._table} WHERE {cond}"
     async with locked_connection() as conn:
         rows = await conn.fetch_all(query=query, values=values)
-    return (fromplain(model, row, serialized=True) for row in rows)
+    return (fromplain(model, row._mapping, serialized=True) for row in rows)
 
 
 async def update(item):
@@ -406,16 +407,16 @@ def sql_escape(s: str, char="#"):
 
 async def find_ratings(
     *,
-    title: str = None,
-    media_type: str = None,
+    title: str | None = None,
+    media_type: str | None = None,
     exact: bool = False,
     ignore_tv_episodes: bool = False,
     include_unrated: bool = False,
-    yearcomp: tuple[Literal["<", "=", ">"], int] = None,
+    yearcomp: tuple[Literal["<", "=", ">"], int] | None = None,
     limit_rows: int = 10,
     user_ids: Iterable[str] = [],
 ):
-    values: dict[str, Union[int, str]] = {
+    values: dict[str, int | str] = {
         "limit_rows": limit_rows,
     }
 
@@ -466,7 +467,7 @@ async def find_ratings(
     """
     async with locked_connection() as conn:
         rows = await conn.fetch_all(bindparams(query, values))
-        movie_ids = tuple(r["movie_id"] for r in rows)
+        movie_ids = tuple(r._mapping["movie_id"] for r in rows)
 
     if include_unrated and len(movie_ids) < limit_rows:
         sqlin, sqlin_vals = sql_in("id", movie_ids, not_=True)
@@ -485,7 +486,7 @@ async def find_ratings(
                     {**values, **sqlin_vals, "limit_rows": limit_rows - len(movie_ids)},
                 )
             )
-            movie_ids += tuple(r["movie_id"] for r in rows)
+            movie_ids += tuple(r._mapping["movie_id"] for r in rows)
 
     return await ratings_for_movie_ids(ids=movie_ids)
 
@@ -527,29 +528,13 @@ async def ratings_for_movie_ids(
 
     async with locked_connection() as conn:
         rows = await conn.fetch_all(bindparams(query, vals))
-    return tuple(dict(r) for r in rows)
+    return tuple(dict(r._mapping) for r in rows)
 
 
 def sql_fields(tp: Type):
     return (f"{tp._table}.{f.name}" for f in fields(tp))
 
 
-def sql_fieldmap(tp: Type):
-    """-> {alias: (table, field_name)}"""
-    return {f"{tp._table}_{f.name}": (tp._table, f.name) for f in fields(tp)}
-
-
-def mux(*tps: Type):
-    return ", ".join(
-        f"{t}.{n} AS {k}" for tp in tps for k, (t, n) in sql_fieldmap(tp).items()
-    )
-
-
-def demux(tp: Type[ModelType], row) -> ModelType:
-    d = {n: row[k] for k, (_, n) in sql_fieldmap(tp).items()}
-    return fromplain(tp, d, serialized=True)
-
-
 def sql_in(column: str, values: Iterable[T], not_=False) -> tuple[str, dict[str, T]]:
     c = column.replace(".", "___")
     value_map = {f"{c}_{i}": v for i, v in enumerate(values, start=1)}
@@ -583,22 +568,22 @@ async def ratings_for_movies(
     async with locked_connection() as conn:
         rows = await conn.fetch_all(query, values)
 
-    return (fromplain(Rating, row, serialized=True) for row in rows)
+    return (fromplain(Rating, row._mapping, serialized=True) for row in rows)
 
 
 async def find_movies(
     *,
-    title: str = None,
-    media_type: str = None,
+    title: str | None = None,
+    media_type: str | None = None,
     exact: bool = False,
     ignore_tv_episodes: bool = False,
-    yearcomp: tuple[Literal["<", "=", ">"], int] = None,
+    yearcomp: tuple[Literal["<", "=", ">"], int] | None = None,
     limit_rows: int = 10,
     skip_rows: int = 0,
     include_unrated: bool = False,
     user_ids: list[ULID] = [],
 ) -> Iterable[tuple[Movie, list[Rating]]]:
-    values: dict[str, Union[int, str]] = {
+    values: dict[str, int | str] = {
         "limit_rows": limit_rows,
         "skip_rows": skip_rows,
     }
@@ -650,7 +635,7 @@ async def find_movies(
     async with locked_connection() as conn:
         rows = await conn.fetch_all(bindparams(query, values))
 
-    movies = [fromplain(Movie, row, serialized=True) for row in rows]
+    movies = [fromplain(Movie, row._mapping, serialized=True) for row in rows]
 
     if not user_ids:
         return ((m, []) for m in movies)
diff --git a/unwind/imdb.py b/unwind/imdb.py
index e541277..477ec64 100644
--- a/unwind/imdb.py
+++ b/unwind/imdb.py
@@ -2,12 +2,11 @@ import logging
 import re
 from collections import namedtuple
 from datetime import datetime
-from typing import Optional, Tuple
 from urllib.parse import urljoin
 
 from . import db
 from .models import Movie, Rating, User
-from .request import cache_path, session, soup_from_url
+from .request import asession, asoup_from_url, cache_path
 
 log = logging.getLogger(__name__)
 
@@ -35,13 +34,11 @@ log = logging.getLogger(__name__)
 #             p.text-muted.text-small span[name=nv] [data-value]
 
 
-async def refresh_user_ratings_from_imdb(stop_on_dupe=True):
-
-    with session() as s:
+async def refresh_user_ratings_from_imdb(stop_on_dupe: bool = True):
+    async with asession() as s:
         s.headers["Accept-Language"] = "en-US, en;q=0.5"
 
         for user in await db.get_all(User):
-
             log.info("⚡️ Loading data for %s ...", user.name)
 
             try:
@@ -98,7 +95,6 @@ find_movie_id = re.compile(r"/title/(?P<id>tt\d+)/").search
 
 
 def movie_and_rating_from_item(item) -> tuple[Movie, Rating]:
-
     genres = (genre := item.find("span", "genre")) and genre.string or ""
     movie = Movie(
         title=item.h3.a.string.strip(),
@@ -153,10 +149,10 @@ def movie_and_rating_from_item(item) -> tuple[Movie, Rating]:
 ForgedRequest = namedtuple("ForgedRequest", "url headers")
 
 
-async def parse_page(url) -> Tuple[list[Rating], Optional[str]]:
+async def parse_page(url: str) -> tuple[list[Rating], str | None]:
     ratings = []
 
-    soup = soup_from_url(url)
+    soup = await asoup_from_url(url)
 
     meta = soup.find("meta", property="pageId")
     headline = soup.h1
@@ -170,7 +166,6 @@ async def parse_page(url) -> Tuple[list[Rating], Optional[str]]:
 
     items = soup.find_all("div", "lister-item-content")
     for i, item in enumerate(items):
-
         try:
             movie, rating = movie_and_rating_from_item(item)
         except Exception as err:
@@ -196,11 +191,10 @@ async def parse_page(url) -> Tuple[list[Rating], Optional[str]]:
     return (ratings, next_url if url != next_url else None)
 
 
-async def load_ratings(user_id):
+async def load_ratings(user_id: str):
     next_url = user_ratings_url(user_id)
 
     while next_url:
-
         ratings, next_url = await parse_page(next_url)
 
         for i, rating in enumerate(ratings):
diff --git a/unwind/imdb_import.py b/unwind/imdb_import.py
index 45360aa..705db2f 100644
--- a/unwind/imdb_import.py
+++ b/unwind/imdb_import.py
@@ -1,10 +1,11 @@
+import asyncio
 import csv
 import gzip
 import logging
 from dataclasses import dataclass, fields
 from datetime import datetime, timezone
 from pathlib import Path
-from typing import Generator, Literal, Optional, Type, TypeVar, overload
+from typing import Generator, Literal, Type, TypeVar, overload
 
 from . import config, db, request
 from .db import add_or_update_many_movies
@@ -27,10 +28,10 @@ class BasicRow:
     primaryTitle: str
     originalTitle: str
     isAdult: bool
-    startYear: Optional[int]
-    endYear: Optional[int]
-    runtimeMinutes: Optional[int]
-    genres: Optional[set[str]]
+    startYear: int | None
+    endYear: int | None
+    runtimeMinutes: int | None
+    genres: set[str] | None
 
     @classmethod
     def from_row(cls, row):
@@ -100,7 +101,7 @@ title_types = {
 }
 
 
-def gz_mtime(path) -> datetime:
+def gz_mtime(path: Path) -> datetime:
     """Return the timestamp of the compressed file."""
     g = gzip.GzipFile(path, "rb")
     g.peek(1)  # start reading the file to fill the timestamp field
@@ -108,14 +109,13 @@ def gz_mtime(path) -> datetime:
     return datetime.fromtimestamp(g.mtime).replace(tzinfo=timezone.utc)
 
 
-def count_lines(path) -> int:
+def count_lines(path: Path) -> int:
     i = 0
 
-    one_mb = 2 ** 20
+    one_mb = 2**20
     buf_size = 8 * one_mb  # 8 MiB seems to give a good read/process performance.
 
     with gzip.open(path, "rt") as f:
-
         while buf := f.read(buf_size):
             i += buf.count("\n")
 
@@ -124,19 +124,19 @@ def count_lines(path) -> int:
 
 @overload
 def read_imdb_tsv(
-    path, row_type, *, unpack: Literal[False]
+    path: Path, row_type, *, unpack: Literal[False]
 ) -> Generator[list[str], None, None]:
     ...
 
 
 @overload
 def read_imdb_tsv(
-    path, row_type: Type[T], *, unpack: Literal[True] = True
+    path: Path, row_type: Type[T], *, unpack: Literal[True] = True
 ) -> Generator[T, None, None]:
     ...
 
 
-def read_imdb_tsv(path, row_type, *, unpack=True):
+def read_imdb_tsv(path: Path, row_type, *, unpack=True):
     with gzip.open(path, "rt", newline="") as f:
         rows = csv.reader(f, delimiter="\t", quoting=csv.QUOTE_NONE)
 
@@ -161,7 +161,7 @@ def read_imdb_tsv(path, row_type, *, unpack=True):
                 raise
 
 
-def read_ratings(path):
+def read_ratings(path: Path):
     mtime = gz_mtime(path)
     rows = read_imdb_tsv(path, RatingRow)
 
@@ -171,19 +171,20 @@ def read_ratings(path):
         yield m
 
 
-def read_ratings_as_mapping(path):
+def read_ratings_as_mapping(path: Path):
     """Optimized function to quickly load all ratings."""
     rows = read_imdb_tsv(path, RatingRow, unpack=False)
     return {r[0]: (round(100 * (float(r[1]) - 1) / 9), int(r[2])) for r in rows}
 
 
-def read_basics(path):
+def read_basics(path: Path) -> Generator[Movie | None, None, None]:
     mtime = gz_mtime(path)
     rows = read_imdb_tsv(path, BasicRow)
 
     for row in rows:
         if row.startYear is None:
             log.debug("Skipping movie, missing year: %s", row)
+            yield None
             continue
 
         m = row.as_movie()
@@ -197,20 +198,24 @@ async def import_from_file(*, basics_path: Path, ratings_path: Path):
 
     log.info("💾 Importing movies ...")
     total = count_lines(basics_path)
-    assert total != 0
+    log.debug("Found %i movies.", total)
+    if total == 0:
+        raise RuntimeError(f"No movies found.")
     perc_next_report = 0.0
     perc_step = 0.1
 
     chunk = []
 
     for i, m in enumerate(read_basics(basics_path)):
-
         perc = 100 * i / total
         if perc >= perc_next_report:
             await db.set_import_progress(perc)
             log.info("⏳ Imported %s%%", round(perc, 1))
             perc_next_report += perc_step
 
+        if m is None:
+            continue
+
         if m.media_type not in {
             "Movie",
             "Short",
@@ -235,10 +240,27 @@ async def import_from_file(*, basics_path: Path, ratings_path: Path):
         await add_or_update_many_movies(chunk)
         chunk = []
 
+    log.info("👍 Imported 100%")
     await db.set_import_progress(100)
 
 
-async def load_from_web(*, force: bool = False):
+async def download_datasets(*, basics_path: Path, ratings_path: Path) -> None:
+    """Download IMDb movie database dumps.
+
+    See https://www.imdb.com/interfaces/ and https://datasets.imdbws.com/ for
+    more information on the IMDb database dumps.
+    """
+    basics_url = "https://datasets.imdbws.com/title.basics.tsv.gz"
+    ratings_url = "https://datasets.imdbws.com/title.ratings.tsv.gz"
+
+    async with request.asession():
+        await asyncio.gather(
+            request.adownload(ratings_url, to_path=ratings_path, only_if_newer=True),
+            request.adownload(basics_url, to_path=basics_path, only_if_newer=True),
+        )
+
+
+async def load_from_web(*, force: bool = False) -> None:
     """Refresh the full IMDb movie database.
 
     The latest dumps are first downloaded and then imported into the database.
@@ -251,17 +273,13 @@ async def load_from_web(*, force: bool = False):
     await db.set_import_progress(0)
 
     try:
-        basics_url = "https://datasets.imdbws.com/title.basics.tsv.gz"
-        ratings_url = "https://datasets.imdbws.com/title.ratings.tsv.gz"
         ratings_file = config.datadir / "imdb/title.ratings.tsv.gz"
         basics_file = config.datadir / "imdb/title.basics.tsv.gz"
 
         ratings_mtime = ratings_file.stat().st_mtime if ratings_file.exists() else None
         bastics_mtime = basics_file.stat().st_mtime if basics_file.exists() else None
 
-        with request.session():
-            request.download(ratings_url, ratings_file, only_if_newer=True)
-            request.download(basics_url, basics_file, only_if_newer=True)
+        await download_datasets(basics_path=basics_file, ratings_path=ratings_file)
 
         is_changed = (
             ratings_mtime != ratings_file.stat().st_mtime
diff --git a/unwind/models.py b/unwind/models.py
index 37cd48d..4480307 100644
--- a/unwind/models.py
+++ b/unwind/models.py
@@ -3,13 +3,14 @@ from dataclasses import dataclass, field
 from dataclasses import fields as _fields
 from datetime import datetime, timezone
 from functools import partial
+from types import UnionType
 from typing import (
     Annotated,
     Any,
     ClassVar,
     Container,
     Literal,
-    Optional,
+    Mapping,
     Type,
     TypeVar,
     Union,
@@ -19,13 +20,13 @@ from typing import (
 
 from .types import ULID
 
-JSON = Union[int, float, str, None, list["JSON"], dict[str, "JSON"]]
+JSON = int | float | str | None | list["JSON"] | dict[str, "JSON"]
 JSONObject = dict[str, JSON]
 
 T = TypeVar("T")
 
 
-def annotations(tp: Type) -> Optional[tuple]:
+def annotations(tp: Type) -> tuple | None:
     return tp.__metadata__ if hasattr(tp, "__metadata__") else None
 
 
@@ -42,7 +43,6 @@ def fields(class_or_instance):
     # XXX this might be a little slow (not sure), if so, memoize
 
     for f in _fields(class_or_instance):
-
         if f.name == "_is_lazy":
             continue
 
@@ -54,21 +54,21 @@ def fields(class_or_instance):
 
 def is_optional(tp: Type) -> bool:
     """Return wether the given type is optional."""
-    if get_origin(tp) is not Union:
+    if not isinstance(tp, UnionType) and get_origin(tp) is not Union:
         return False
 
     args = get_args(tp)
     return len(args) == 2 and type(None) in args
 
 
-def optional_type(tp: Type) -> Optional[Type]:
+def optional_type(tp: Type) -> Type | None:
     """Return the wrapped type from an optional type.
 
     For example this will return `int` for `Optional[int]`.
     Since they're equivalent this also works for other optioning notations, like
     `Union[int, None]` and `int | None`.
     """
-    if get_origin(tp) is not Union:
+    if not isinstance(tp, UnionType) and get_origin(tp) is not Union:
         return None
 
     args = get_args(tp)
@@ -92,7 +92,7 @@ def _id(x: T) -> T:
 
 
 def asplain(
-    o: object, *, filter_fields: Container[str] = None, serialize: bool = False
+    o: object, *, filter_fields: Container[str] | None = None, serialize: bool = False
 ) -> dict[str, Any]:
     """Return the given model instance as `dict` with JSON compatible plain datatypes.
 
@@ -109,7 +109,6 @@ def asplain(
 
     d: JSONObject = {}
     for f in fields(o):
-
         if filter_fields is not None and f.name not in filter_fields:
             continue
 
@@ -146,7 +145,7 @@ def asplain(
     return d
 
 
-def fromplain(cls: Type[T], d: dict[str, Any], *, serialized: bool = False) -> T:
+def fromplain(cls: Type[T], d: Mapping, *, serialized: bool = False) -> T:
     """Return an instance of the given model using the given data.
 
     If `serialized` is `True`, collection types (lists, dicts, etc.) will be
@@ -157,7 +156,6 @@ def fromplain(cls: Type[T], d: dict[str, Any], *, serialized: bool = False) -> T
 
     dd: JSONObject = {}
     for f in fields(cls):
-
         target = f.type
         otype = optional_type(f.type)
         is_opt = otype is not None
@@ -188,7 +186,8 @@ def validate(o: object) -> None:
         vtype = type(getattr(o, f.name))
         if vtype is not f.type:
             if get_origin(f.type) is vtype or (
-                get_origin(f.type) is Union and vtype in get_args(f.type)
+                (isinstance(f.type, UnionType) or get_origin(f.type) is Union)
+                and vtype in get_args(f.type)
             ):
                 continue
             raise ValueError(f"Invalid value type: {f.name}: {vtype}")
@@ -206,7 +205,7 @@ class Progress:
     type: str = None
     state: str = None
     started: datetime = field(default_factory=utcnow)
-    stopped: Optional[str] = None
+    stopped: str | None = None
 
     @property
     def _state(self) -> dict:
@@ -243,15 +242,15 @@ class Movie:
 
     id: ULID = field(default_factory=ULID)
     title: str = None  # canonical title (usually English)
-    original_title: Optional[
-        str
-    ] = None  # original title (usually transscribed to latin script)
+    original_title: str | None = (
+        None  # original title (usually transscribed to latin script)
+    )
     release_year: int = None  # canonical release date
     media_type: str = None
     imdb_id: str = None
-    imdb_score: Optional[int] = None  # range: [0,100]
-    imdb_votes: Optional[int] = None
-    runtime: Optional[int] = None  # minutes
+    imdb_score: int | None = None  # range: [0,100]
+    imdb_votes: int | None = None
+    runtime: int | None = None  # minutes
     genres: set[str] = None
     created: datetime = field(default_factory=utcnow)
     updated: datetime = field(default_factory=utcnow)
@@ -292,7 +291,7 @@ dataclass containing the ID of the linked data.
 The contents of the Relation are ignored or discarded when using
 `asplain`, `fromplain`, and `validate`.
 """
-Relation = Annotated[Optional[T], _RelationSentinel]
+Relation = Annotated[T | None, _RelationSentinel]
 
 
 @dataclass
@@ -309,8 +308,8 @@ class Rating:
 
     score: int = None  # range: [0,100]
     rating_date: datetime = None
-    favorite: Optional[bool] = None
-    finished: Optional[bool] = None
+    favorite: bool | None = None
+    finished: bool | None = None
 
     def __eq__(self, other):
         """Return wether two Ratings are equal.
@@ -342,11 +341,11 @@ class User:
     secret: str = None
     groups: list[dict[str, str]] = field(default_factory=list)
 
-    def has_access(self, group_id: Union[ULID, str], access: Access = "r"):
+    def has_access(self, group_id: ULID | str, access: Access = "r"):
         group_id = group_id if isinstance(group_id, str) else str(group_id)
         return any(g["id"] == group_id and access == g["access"] for g in self.groups)
 
-    def set_access(self, group_id: Union[ULID, str], access: Access):
+    def set_access(self, group_id: ULID | str, access: Access):
         group_id = group_id if isinstance(group_id, str) else str(group_id)
         for g in self.groups:
             if g["id"] == group_id:
diff --git a/unwind/request.py b/unwind/request.py
index 81f9f29..4e57564 100644
--- a/unwind/request.py
+++ b/unwind/request.py
@@ -4,19 +4,17 @@ import logging
 import os
 import tempfile
 from collections import deque
-from contextlib import contextmanager
-from dataclasses import dataclass
+from contextlib import asynccontextmanager
+from dataclasses import dataclass, field
 from functools import wraps
 from hashlib import md5
 from pathlib import Path
 from random import random
 from time import sleep, time
-from typing import Callable, Optional, Union
+from typing import Callable, ParamSpec, TypeVar, cast
 
 import bs4
-import requests
-from requests.status_codes import codes
-from urllib3.util.retry import Retry
+import httpx
 
 from . import config
 
@@ -26,28 +24,17 @@ if config.debug and config.cachedir:
     config.cachedir.mkdir(exist_ok=True)
 
 
-def set_retries(s: requests.Session, n: int, backoff_factor: float = 0.2):
-    retry = (
-        Retry(
-            total=n,
-            connect=n,
-            read=n,
-            status=n,
-            status_forcelist=Retry.RETRY_AFTER_STATUS_CODES,
-            backoff_factor=backoff_factor,
-        )
-        if n
-        else Retry(0, read=False)
-    )
-    for a in s.adapters.values():
-        a.max_retries = retry
+_shared_asession = None
+
+_ASession_T = httpx.AsyncClient
+_Response_T = httpx.Response
+
+_T = TypeVar("_T")
+_P = ParamSpec("_P")
 
 
-_shared_session = None
-
-
-@contextmanager
-def session():
+@asynccontextmanager
+async def asession():
     """Return the shared request session.
 
     The session is shared by all request functions and provides cookie
@@ -55,38 +42,34 @@ def session():
     Opening the session before making a request allows you to set headers
     or change the retry behavior.
     """
-    global _shared_session
+    global _shared_asession
 
-    if _shared_session:
-        yield _shared_session
+    if _shared_asession:
+        yield _shared_asession
         return
 
-    _shared_session = Session()
+    _shared_asession = _ASession_T()
+    _shared_asession.headers[
+        "user-agent"
+    ] = "Mozilla/5.0 Gecko/20100101 unwind/20230203"
     try:
-        yield _shared_session
+        async with _shared_asession:
+            yield _shared_asession
     finally:
-        _shared_session = None
+        _shared_asession = None
 
 
-def Session() -> requests.Session:
-    s = requests.Session()
-    s.headers["User-Agent"] = "Mozilla/5.0 Gecko/20100101 unwind/20210506"
-    return s
-
-
-def throttle(
-    times: int, per_seconds: float, jitter: Callable[[], float] = None
-) -> Callable[[Callable], Callable]:
-
-    calls: Deque[float] = deque(maxlen=times)
+def _throttle(
+    times: int, per_seconds: float, jitter: Callable[[], float] | None = None
+) -> Callable[[Callable[_P, _T]], Callable[_P, _T]]:
+    calls: deque[float] = deque(maxlen=times)
 
     if jitter is None:
         jitter = lambda: 0.0
 
-    def decorator(func: Callable) -> Callable:
+    def decorator(func: Callable[_P, _T]) -> Callable[_P, _T]:
         @wraps(func)
-        def inner(*args, **kwds):
-
+        def inner(*args: _P.args, **kwds: _P.kwargs):
             # clean up
             while calls:
                 if calls[0] + per_seconds > time():
@@ -118,23 +101,19 @@ def throttle(
     return decorator
 
 
-class CachedStr(str):
-    is_cached = True
-
-
 @dataclass
-class CachedResponse:
+class _CachedResponse:
     is_cached = True
     status_code: int
     text: str
     url: str
-    headers: dict[str, str] = None
+    headers: dict[str, str] = field(default_factory=dict)
 
     def json(self):
         return json.loads(self.text)
 
 
-class RedirectError(RuntimeError):
+class _RedirectError(RuntimeError):
     def __init__(self, from_url: str, to_url: str, is_cached=False):
         self.from_url = from_url
         self.to_url = to_url
@@ -142,44 +121,51 @@ class RedirectError(RuntimeError):
         super().__init__(f"Redirected: {from_url} -> {to_url}")
 
 
-def cache_path(req) -> Optional[Path]:
+def cache_path(req) -> Path | None:
     if not config.cachedir:
         return
     sig = repr(req.url)  # + repr(sorted(req.headers.items()))
     return config.cachedir / md5(sig.encode()).hexdigest()
 
 
-@throttle(1, 1, random)
-def http_get(s: requests.Session, url: str, *args, **kwds) -> requests.Response:
-
-    req = s.prepare_request(requests.Request("GET", url, *args, **kwds))
+@_throttle(1, 1, random)
+async def _ahttp_get(s: _ASession_T, url: str, *args, **kwds) -> _Response_T:
+    req = s.build_request(method="GET", url=url, *args, **kwds)
 
     cachefile = cache_path(req) if config.debug else None
 
     if cachefile:
         if cachefile.exists():
             log.debug(
-                f"💾 loading {req.url} ({req.headers!a}) from cache {cachefile} ..."
+                "💾 loading %s (%a) from cache %s ...", req.url, req.headers, cachefile
             )
             with cachefile.open() as fp:
-                resp = CachedResponse(**json.load(fp))
+                resp = _CachedResponse(**json.load(fp))
             if 300 <= resp.status_code <= 399:
-                raise RedirectError(
+                raise _RedirectError(
                     from_url=resp.url, to_url=resp.headers["location"], is_cached=True
                 )
-            return resp
+            return cast(_Response_T, resp)
 
-    log.debug(f"⚡️ loading {req.url} ({req.headers!a}) ...")
-    resp = s.send(req, allow_redirects=False, stream=True)
+    log.debug("⚡️ loading %s (%a) ...", req.url, req.headers)
+    resp = await s.send(req, follow_redirects=False, stream=True)
     resp.raise_for_status()
 
+    await resp.aread()  # Download the response stream to allow `resp.text` access.
+
     if cachefile:
+        log.debug(
+            "💾 writing response to cache: %s (%a) -> %s",
+            req.url,
+            req.headers,
+            cachefile,
+        )
         with cachefile.open("w") as fp:
             json.dump(
                 {
                     "status_code": resp.status_code,
                     "text": resp.text,
-                    "url": resp.url,
+                    "url": str(resp.url),
                     "headers": dict(resp.headers),
                 },
                 fp,
@@ -187,45 +173,46 @@ def http_get(s: requests.Session, url: str, *args, **kwds) -> requests.Response:
 
     if resp.is_redirect:
         # Redirects could mean trouble, we need to stay on top of that!
-        raise RedirectError(from_url=resp.url, to_url=resp.headers["location"])
+        raise _RedirectError(from_url=str(resp.url), to_url=resp.headers["location"])
 
     return resp
 
 
-def soup_from_url(url):
+async def asoup_from_url(url):
     """Return a BeautifulSoup instance from the contents for the given URL."""
-    with session() as s:
-        r = http_get(s, url)
+    async with asession() as s:
+        r = await _ahttp_get(s, url)
 
     soup = bs4.BeautifulSoup(r.text, "html5lib")
     return soup
 
 
-def last_modified_from_response(resp):
-    if last_mod := resp.headers.get("Last-Modified"):
+def _last_modified_from_response(resp: _Response_T) -> float | None:
+    if last_mod := resp.headers.get("last-modified"):
         try:
             return email.utils.parsedate_to_datetime(last_mod).timestamp()
         except:
             log.exception("🐛 Received invalid value for Last-Modified: %s", last_mod)
 
 
-def last_modified_from_file(path: Path):
+def _last_modified_from_file(path: Path) -> float:
     return path.stat().st_mtime
 
 
-def download(
+async def adownload(
     url: str,
-    file_path: Union[Path, str] = None,
     *,
-    replace_existing: bool = None,
+    to_path: Path | str | None = None,
+    replace_existing: bool | None = None,
     only_if_newer: bool = False,
-    timeout: float = None,
-    verify_ssl: bool = True,
+    timeout: float | None = None,
     chunk_callback=None,
     response_callback=None,
-):
+) -> bytes | None:
     """Download a file.
 
+    If `to_path` is `None` return the remote content, otherwise write the
+    content to the given file path.
     Existing files will not be overwritten unless `replace_existing` is set.
     Setting `only_if_newer` will check if the remote file is newer than the
     local file, otherwise the download will be aborted.
@@ -234,89 +221,103 @@ def download(
         replace_existing = only_if_newer
 
     file_exists = None
-    if file_path is not None:
-        file_path = Path(file_path)
+    if to_path is not None:
+        to_path = Path(to_path)
 
-        file_exists = file_path.exists() and file_path.stat().st_size
+        file_exists = to_path.exists() and to_path.stat().st_size
         if file_exists and not replace_existing:
-            raise FileExistsError(23, "Would replace existing file", str(file_path))
-
-    with session() as s:
+            raise FileExistsError(23, "Would replace existing file", str(to_path))
 
+    async with asession() as s:
         headers = {}
         if file_exists and only_if_newer:
-            assert file_path
-            file_lastmod = last_modified_from_file(file_path)
-            headers["If-Modified-Since"] = email.utils.formatdate(
+            assert to_path
+            file_lastmod = _last_modified_from_file(to_path)
+            headers["if-modified-since"] = email.utils.formatdate(
                 file_lastmod, usegmt=True
             )
 
-        req = s.prepare_request(requests.Request("GET", url, headers=headers))
+        req = s.build_request(method="GET", url=url, headers=headers, timeout=timeout)
 
-        log.debug("⚡️ loading %s (%s) ...", req.url, req.headers)
-        resp = s.send(
-            req, allow_redirects=True, stream=True, timeout=timeout, verify=verify_ssl
-        )
+        log.debug("⚡️ Loading %s (%a) ...", req.url, dict(req.headers))
+        resp = await s.send(req, follow_redirects=True, stream=True)
 
-        if response_callback is not None:
-            try:
-                response_callback(resp)
-            except:
-                log.exception("🐛 Error in response callback.")
+        try:
+            if response_callback is not None:
+                try:
+                    response_callback(resp)
+                except:
+                    log.exception("🐛 Error in response callback.")
 
-        log.debug("☕️ Response status: %s; headers: %s", resp.status_code, resp.headers)
+            log.debug(
+                "☕️ %s -> status: %s; headers: %a",
+                req.url,
+                resp.status_code,
+                dict(resp.headers),
+            )
 
-        resp.raise_for_status()
-
-        if resp.status_code == codes.not_modified:
-            log.debug("✋ Remote file has not changed, skipping download.")
-            return
-
-        if file_path is None:
-            return resp.content
-
-        assert replace_existing is True
-
-        resp_lastmod = last_modified_from_response(resp)
-
-        # Check Last-Modified in case the server ignored If-Modified-Since.
-        # XXX also check Content-Length?
-        if file_exists and only_if_newer and resp_lastmod is not None:
-            assert file_lastmod
-
-            if resp_lastmod <= file_lastmod:
-                log.debug("✋ Local file is newer, skipping download.")
-                resp.close()
+            if resp.status_code == httpx.codes.NOT_MODIFIED:
+                log.debug(
+                    "✋ Remote file has not changed, skipping download: %s -> %a",
+                    req.url,
+                    to_path,
+                )
                 return
 
-        # Create intermediate directories if necessary.
-        download_dir = file_path.parent
-        download_dir.mkdir(parents=True, exist_ok=True)
+            resp.raise_for_status()
+
+            if to_path is None:
+                await resp.aread()  # Download the response stream to allow `resp.content` access.
+                return resp.content
+
+            resp_lastmod = _last_modified_from_response(resp)
+
+            # Check Last-Modified in case the server ignored If-Modified-Since.
+            # XXX also check Content-Length?
+            if file_exists and only_if_newer and resp_lastmod is not None:
+                assert file_lastmod
+
+                if resp_lastmod <= file_lastmod:
+                    log.debug("✋ Local file is newer, skipping download: %a", req.url)
+                    return
+
+            # Create intermediate directories if necessary.
+            download_dir = to_path.parent
+            download_dir.mkdir(parents=True, exist_ok=True)
+
+            # Write content to temp file.
+            tempdir = download_dir
+            tempfd, tempfile_path = tempfile.mkstemp(
+                dir=tempdir, prefix=f".download-{to_path.name}."
+            )
+            one_mb = 2**20
+            chunk_size = 8 * one_mb
+            try:
+                log.debug("💾 Writing to temp file %s ...", tempfile_path)
+                async for chunk in resp.aiter_bytes(chunk_size):
+                    os.write(tempfd, chunk)
+                    if chunk_callback:
+                        try:
+                            chunk_callback(chunk)
+                        except:
+                            log.exception("🐛 Error in chunk callback.")
+            finally:
+                os.close(tempfd)
+
+            # Move downloaded file to destination.
+            if to_path.exists():
+                log.debug("💾 Replacing existing file: %s", to_path)
+            else:
+                log.debug("💾 Move to destination: %s", to_path)
+            if replace_existing:
+                Path(tempfile_path).replace(to_path)
+            else:
+                Path(tempfile_path).rename(to_path)
+
+            # Fix file attributes.
+            if resp_lastmod is not None:
+                log.debug("💾 Adjusting file timestamp: %s (%s)", to_path, resp_lastmod)
+                os.utime(to_path, (resp_lastmod, resp_lastmod))
 
-        # Write content to temp file.
-        tempdir = download_dir
-        tempfd, tempfile_path = tempfile.mkstemp(
-            dir=tempdir, prefix=f".download-{file_path.name}."
-        )
-        one_mb = 2 ** 20
-        chunk_size = 8 * one_mb
-        try:
-            log.debug("💾 Writing to temp file %s ...", tempfile_path)
-            for chunk in resp.iter_content(chunk_size=chunk_size, decode_unicode=False):
-                os.write(tempfd, chunk)
-                if chunk_callback:
-                    try:
-                        chunk_callback(chunk)
-                    except:
-                        log.exception("🐛 Error in chunk callback.")
         finally:
-            os.close(tempfd)
-
-        # Move downloaded file to destination.
-        if file_exists:
-            log.debug("💾 Replacing existing file: %s", file_path)
-        Path(tempfile_path).replace(file_path)
-
-        # Fix file attributes.
-        if resp_lastmod is not None:
-            os.utime(file_path, (resp_lastmod, resp_lastmod))
+            await resp.aclose()
diff --git a/unwind/types.py b/unwind/types.py
index a54e0ec..94c0e00 100644
--- a/unwind/types.py
+++ b/unwind/types.py
@@ -1,5 +1,5 @@
 import re
-from typing import Union, cast
+from typing import cast
 
 import ulid
 from ulid.hints import Buffer
@@ -16,7 +16,7 @@ class ULID(ulid.ULID):
 
     _pattern = re.compile(r"^[0-9A-HJKMNP-TV-Z]{26}$")
 
-    def __init__(self, buffer: Union[Buffer, ulid.ULID, str, None] = None):
+    def __init__(self, buffer: Buffer | ulid.ULID | str | None = None):
         if isinstance(buffer, str):
             if not self._pattern.search(buffer):
                 raise ValueError("Invalid ULID.")
diff --git a/unwind/utils.py b/unwind/utils.py
index 012d1fb..f253bde 100644
--- a/unwind/utils.py
+++ b/unwind/utils.py
@@ -17,7 +17,10 @@ def b64padded(s: str) -> str:
 
 
 def phc_scrypt(
-    secret: bytes, *, salt: bytes = None, params: dict[Literal["n", "r", "p"], int] = {}
+    secret: bytes,
+    *,
+    salt: bytes | None = None,
+    params: dict[Literal["n", "r", "p"], int] = {},
 ) -> str:
     """Return the scrypt expanded secret in PHC string format.
 
@@ -30,7 +33,7 @@ def phc_scrypt(
     if salt is None:
         salt = secrets.token_bytes(16)
 
-    n = params.get("n", 2 ** 14)  # CPU/Memory cost factor
+    n = params.get("n", 2**14)  # CPU/Memory cost factor
     r = params.get("r", 8)  # block size
     p = params.get("p", 1)  # parallelization factor
     # maxmem = 2 * 128 * n * r * p
diff --git a/unwind/web.py b/unwind/web.py
index e194c10..eb08e9c 100644
--- a/unwind/web.py
+++ b/unwind/web.py
@@ -1,8 +1,9 @@
 import asyncio
+import contextlib
 import logging
 import secrets
 from json.decoder import JSONDecodeError
-from typing import Literal, Optional, overload
+from typing import Literal, overload
 
 from starlette.applications import Starlette
 from starlette.authentication import (
@@ -85,11 +86,14 @@ def truthy(s: str):
     return bool(s) and s.lower() in {"1", "yes", "true"}
 
 
-def yearcomp(s: str):
+_Yearcomp = Literal["<", "=", ">"]
+
+
+def yearcomp(s: str) -> tuple[_Yearcomp, int] | None:
     if not s:
         return
 
-    comp: Literal["<", "=", ">"] = "="
+    comp: _Yearcomp = "="
     if (prefix := s[0]) in "<=>":
         comp = prefix  # type: ignore
         s = s[len(prefix) :]
@@ -97,7 +101,9 @@ def yearcomp(s: str):
     return comp, int(s)
 
 
-def as_int(x, *, max: int = None, min: Optional[int] = 1, default: int = None):
+def as_int(
+    x, *, max: int | None = None, min: int | None = 1, default: int | None = None
+) -> int:
     try:
         if not isinstance(x, int):
             x = int(x)
@@ -135,7 +141,7 @@ async def json_from_body(request, keys: list[str]) -> list:
     ...
 
 
-async def json_from_body(request, keys: list[str] = None):
+async def json_from_body(request, keys: list[str] | None = None):
     if not await request.body():
         data = {}
 
@@ -158,7 +164,7 @@ def is_admin(request):
     return "admin" in request.auth.scopes
 
 
-async def auth_user(request) -> Optional[User]:
+async def auth_user(request) -> User | None:
     if not isinstance(request.user, AuthedUser):
         return
 
@@ -176,7 +182,7 @@ async def auth_user(request) -> Optional[User]:
 _routes = []
 
 
-def route(path: str, *, methods: list[str] = None, **kwds):
+def route(path: str, *, methods: list[str] | None = None, **kwds):
     def decorator(func):
         r = Route(path, func, methods=methods, **kwds)
         _routes.append(r)
@@ -190,7 +196,6 @@ route.registered = _routes
 
 @route("/groups/{group_id}/ratings")
 async def get_ratings_for_group(request):
-
     group_id = as_ulid(request.path_params["group_id"])
     group = await db.get(Group, id=str(group_id))
 
@@ -251,7 +256,6 @@ def not_implemented():
 @route("/movies")
 @requires(["authenticated"])
 async def list_movies(request):
-
     params = request.query_params
 
     user = await auth_user(request)
@@ -319,7 +323,6 @@ async def list_movies(request):
 @route("/movies", methods=["POST"])
 @requires(["authenticated", "admin"])
 async def add_movie(request):
-
     not_implemented()
 
 
@@ -361,7 +364,6 @@ _import_lock = asyncio.Lock()
 @route("/movies/_reload_imdb", methods=["POST"])
 @requires(["authenticated", "admin"])
 async def load_imdb_movies(request):
-
     params = request.query_params
     force = truthy(params.get("force"))
 
@@ -384,7 +386,6 @@ async def load_imdb_movies(request):
 @route("/users")
 @requires(["authenticated", "admin"])
 async def list_users(request):
-
     users = await db.get_all(User)
 
     return JSONResponse([asplain(u) for u in users])
@@ -393,7 +394,6 @@ async def list_users(request):
 @route("/users", methods=["POST"])
 @requires(["authenticated", "admin"])
 async def add_user(request):
-
     name, imdb_id = await json_from_body(request, ["name", "imdb_id"])
 
     # XXX restrict name
@@ -415,7 +415,6 @@ async def add_user(request):
 @route("/users/{user_id}")
 @requires(["authenticated"])
 async def show_user(request):
-
     user_id = as_ulid(request.path_params["user_id"])
 
     if is_admin(request):
@@ -444,7 +443,6 @@ async def show_user(request):
 @route("/users/{user_id}", methods=["DELETE"])
 @requires(["authenticated", "admin"])
 async def remove_user(request):
-
     user_id = as_ulid(request.path_params["user_id"])
 
     user = await db.get(User, id=str(user_id))
@@ -462,7 +460,6 @@ async def remove_user(request):
 @route("/users/{user_id}", methods=["PATCH"])
 @requires(["authenticated"])
 async def modify_user(request):
-
     user_id = as_ulid(request.path_params["user_id"])
 
     if is_admin(request):
@@ -510,7 +507,6 @@ async def modify_user(request):
 @route("/users/{user_id}/groups", methods=["POST"])
 @requires(["authenticated", "admin"])
 async def add_group_to_user(request):
-
     user_id = as_ulid(request.path_params["user_id"])
 
     user = await db.get(User, id=str(user_id))
@@ -535,21 +531,18 @@ async def add_group_to_user(request):
 @route("/users/{user_id}/ratings")
 @requires(["private"])
 async def ratings_for_user(request):
-
     not_implemented()
 
 
 @route("/users/{user_id}/ratings", methods=["PUT"])
 @requires("authenticated")
 async def set_rating_for_user(request):
-
     not_implemented()
 
 
 @route("/users/_reload_ratings", methods=["POST"])
 @requires(["authenticated", "admin"])
 async def load_imdb_user_ratings(request):
-
     ratings = [rating async for rating in imdb.refresh_user_ratings_from_imdb()]
 
     return JSONResponse({"new_ratings": [asplain(r) for r in ratings]})
@@ -558,7 +551,6 @@ async def load_imdb_user_ratings(request):
 @route("/groups")
 @requires(["authenticated", "admin"])
 async def list_groups(request):
-
     groups = await db.get_all(Group)
 
     return JSONResponse([asplain(g) for g in groups])
@@ -567,7 +559,6 @@ async def list_groups(request):
 @route("/groups", methods=["POST"])
 @requires(["authenticated", "admin"])
 async def add_group(request):
-
     (name,) = await json_from_body(request, ["name"])
 
     # XXX restrict name
@@ -581,7 +572,6 @@ async def add_group(request):
 @route("/groups/{group_id}/users", methods=["POST"])
 @requires(["authenticated"])
 async def add_user_to_group(request):
-
     group_id = as_ulid(request.path_params["group_id"])
     group = await db.get(Group, id=str(group_id))
 
@@ -623,6 +613,13 @@ def auth_error(request, err):
     return unauthorized(str(err))
 
 
+@contextlib.asynccontextmanager
+async def lifespan(app: Starlette):
+    await open_connection_pool()
+    yield
+    await close_connection_pool()
+
+
 def create_app():
     if config.loglevel == "DEBUG":
         logging.basicConfig(
@@ -633,8 +630,7 @@ def create_app():
         log.debug(f"Log level: {config.loglevel}")
 
     return Starlette(
-        on_startup=[open_connection_pool],
-        on_shutdown=[close_connection_pool],
+        lifespan=lifespan,
         routes=[
             Mount(f"{config.api_base}v1", routes=route.registered),
         ],
diff --git a/unwind/web_models.py b/unwind/web_models.py
index 06bcb8c..6e83e1d 100644
--- a/unwind/web_models.py
+++ b/unwind/web_models.py
@@ -1,5 +1,5 @@
 from dataclasses import dataclass
-from typing import Container, Iterable, Optional
+from typing import Container, Iterable
 
 from . import imdb, models
 
@@ -10,17 +10,17 @@ Score100 = int  # [0, 100]
 @dataclass
 class Rating:
     canonical_title: str
-    imdb_score: Optional[Score100]
-    imdb_votes: Optional[int]
+    imdb_score: Score100 | None
+    imdb_votes: int | None
     media_type: str
     movie_imdb_id: str
-    original_title: Optional[str]
+    original_title: str | None
     release_year: int
-    user_id: Optional[str]
-    user_score: Optional[Score100]
+    user_id: str | None
+    user_score: Score100 | None
 
     @classmethod
-    def from_movie(cls, movie: models.Movie, *, rating: models.Rating = None):
+    def from_movie(cls, movie: models.Movie, *, rating: models.Rating | None = None):
         return cls(
             canonical_title=movie.title,
             imdb_score=movie.imdb_score,
@@ -37,11 +37,11 @@ class Rating:
 @dataclass
 class RatingAggregate:
     canonical_title: str
-    imdb_score: Optional[Score100]
-    imdb_votes: Optional[int]
+    imdb_score: Score100 | None
+    imdb_votes: int | None
     link: URL
     media_type: str
-    original_title: Optional[str]
+    original_title: str | None
     user_scores: list[Score100]
     year: int