diff --git a/.gitignore b/.gitignore
index 39daced..9a81b57 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,4 +4,3 @@
 /chardet-5.0.0-filtered.tar.xz
 /chardet-5.1.0-filtered.tar.xz
 /chardet-5.2.0-filtered.tar.xz
-/chardet-5.2.0-filtered.tar.zst
diff --git a/get_source b/get_source
index a574f7e..513d1d3 100755
--- a/get_source
+++ b/get_source
@@ -26,23 +26,9 @@ ARCHIVE="$(find . -mindepth 1 -maxdepth 1 -type f -name '*.tar.gz' -print -quit)
 echo "--> Extracting: $(basename "${ARCHIVE}")" 1>&2
 tar -xzf "${ARCHIVE}"
 echo '--> Removing tests due to licensing issues' 1>&2
-TARDIR="$(basename "${ARCHIVE}" '.tar.gz')"
-MTIME="$(stat -c '%Y' "${TARDIR}")"
-rm -rvf "${TARDIR}/tests/"
-# Restore the original mtime even though we modified the base directory by
-# removing the tests.
-touch -d @"${MTIME}" "${TARDIR}"
-FILTERED="$(basename "${ARCHIVE}" .tar.gz)-filtered.tar.zst"
+rm -rvf */tests/
+FILTERED="$(basename "${ARCHIVE}" .tar.gz)-filtered.tar.xz"
 echo "--> Re-archiving: ${FILTERED}" 1>&2
-# https://www.gnu.org/software/tar/manual/html_section/Reproducibility.html
-TZ=UTC LC_ALL=C tar \
-    --create --verbose \
-    --sort=name \
-    --format=posix \
-    --numeric-owner --owner=0 --group=0 \
-    --mode=go+u,go-w \
-    --pax-option='delete=atime,delete=ctime' \
-    "${TARDIR}/" |
-  zstdmt --ultra -22 > "${FILTERED}"
+tar -c "${FILTERED}" */ | xz -9e > "${FILTERED}"
 mv -v "${FILTERED}" "${OUTDIR}"
 echo 'Done.' 1>&2
diff --git a/python-chardet.rpmlintrc b/python-chardet.rpmlintrc
deleted file mode 100644
index 39210e7..0000000
--- a/python-chardet.rpmlintrc
+++ /dev/null
@@ -1,11 +0,0 @@
-# Not a real spelling error:
-addFilter(r" spelling-error \('([Pp]rober)s?',")
-# This Source cannot be a URL because we must filter out certain files.
-addFilter(r" invalid-url Source[0-9]+: chardet-.*-filtered\.tar\.zst")
-# Bogus; it is a perfectly fine zstandard file.
-addFilter(r" inconsistent-file-extension chardet-.*-filtered\.tar\.zst$")
-# The -doc subpackage was removed without an equivalent replacement.
-addFilter(r" obsolete-not-provided python-chardet-doc$")
-# Update LGPLv2.1 license text and notices for remote-only FSF
-# https://github.com/chardet/chardet/pull/307
-addFilter(r" incorrect-fsf-address ")
diff --git a/python-chardet.spec b/python-chardet.spec
index a851737..dc60893 100644
--- a/python-chardet.spec
+++ b/python-chardet.spec
@@ -1,3 +1,9 @@
+# Sphinx-generated HTML documentation is not suitable for packaging; see
+# https://bugzilla.redhat.com/show_bug.cgi?id=2006555 for discussion.
+#
+# We can generate PDF documentation as a substitute.
+%bcond doc 1
+
 Name:           python-chardet
 Version:        5.2.0
 Release:        %autorelease
@@ -16,16 +22,25 @@ URL:            https://github.com/chardet/chardet
 #
 #   problematic licensing of /tests?
 #   https://github.com/chardet/chardet/issues/231
-Source0:        chardet-%{version}-filtered.tar.zst
+Source0:        chardet-%{version}-filtered.tar.xz
 Source1:        get_source
 # Hand-written for Fedora in groff_man(7) format based on --help output
 Source2:        chardetect.1
 
-BuildSystem:            pyproject
-BuildOption(install):   -l chardet
-
 BuildArch:      noarch
 
+BuildRequires:  python3-devel
+
+%if %{with doc}
+BuildRequires:  make
+BuildRequires:  python3dist(sphinx)
+BuildRequires:  python3dist(sphinx-rtd-theme)
+BuildRequires:  python3-sphinx-latex
+BuildRequires:  latexmk
+BuildRequires:  tex-xetex-bin
+BuildRequires:  /usr/bin/xindy
+%endif
+
 %global common_description %{expand:
 Chardet: The Universal Character Encoding Detector
 
@@ -53,26 +68,65 @@ disabled.}
 %package -n python3-chardet
 Summary:        %{summary}
 
-# Removed in F41:
-Obsoletes:      python-chardet-doc < 5.2.0-12
-
 %description -n python3-chardet
 %{common_description}
 
 
-%install -a
+%package        doc
+Summary:        Documentation for python-chardet
+
+%description    doc
+%{common_description}
+
+
+%prep
+%autosetup -n chardet-%{version}
+
+# Since pdflatex cannot handle Unicode inputs in general:
+echo "latex_engine = 'xelatex'" >> docs/conf.py
+
+
+%generate_buildrequires
+%pyproject_buildrequires
+
+
+%build
+%pyproject_wheel
+
+%if %{with doc}
+PYTHONPATH="${PWD}" %make_build -C docs latex \
+    SPHINXOPTS='-j%{?_smp_build_ncpus}'
+%make_build -C docs/_build/latex LATEXMKOPTS='-quiet'
+%endif
+
+
+%install
+%pyproject_install
+%pyproject_save_files chardet
 install -t '%{buildroot}%{_mandir}/man1' -D -p -m 0644 '%{SOURCE2}'
 
 
+%check
 # We cannot run the upstream tests because they would require data files with
 # problematic license status.
+%pyproject_check_import
 
 
 %files -n python3-chardet -f %{pyproject_files}
+%if %{without doc}
 %doc README.rst
+%endif
 %{_bindir}/chardetect
 %{_mandir}/man1/chardetect.1*
 
 
+%if %{with doc}
+%files doc
+%license LICENSE
+%doc README.rst
+%doc docs/_build/latex/chardet.pdf
+%endif
+
+
 %changelog
 %autochangelog
diff --git a/sources b/sources
index 3fe621b..44e7115 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (chardet-5.2.0-filtered.tar.zst) = 410b2d62c54781f9b848ee78c659d4607bbb7f94f6117d7fa7cd5f82a50dfaf10d6e4c6dfaefa9b9a721b846c167aa12eae029debbaa66b0d830875c8ce5749c
+SHA512 (chardet-5.2.0-filtered.tar.xz) = 4f865b958503596cdaf690d0cb586c7c477419ca528b4701d93577c34764fcbab2246d79b82fe25a06246c59cedb9344ec332540efb76cc02d49158fb4903974