diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index ee7e02e..b574a22 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -6,12 +6,15 @@ on: [push]
 jobs:
   build:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.12", "3.13", "3.14"]
     steps:
       - uses: actions/checkout@v5
-      - name: Set up Python 3.14
+      - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6
         with:
-          python-version: "3.14"
+          python-version: ${{ matrix.python-version }}
       - name: Install
         run: |
           python -m pip install --upgrade pip
@@ -22,6 +25,7 @@ jobs:
           PYTHONWARNINGS=error pytest --cov --durations=10 .
         # https://github.com/marketplace/actions/codecov
       - name: Codecov Report
+        if: matrix.python-version == '3.14'
         uses: codecov/codecov-action@v4
         env:
           CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
diff --git a/.gitignore b/.gitignore
index aafe530..e707d28 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,5 +2,9 @@ __pycache__/
 *.py[cod]
 *.egg-info/
 .pytest_cache/
+.venv-build-test/
+.venv-testpypi/
 docs/_build/
+dist/
+build/
 *.egg
diff --git a/LICENSE b/LICENSE
index b523dda..5840f63 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) 2026 chrizzftd
+Copyright (c) 2026 Christian López Barrón
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/README.md b/README.md
index fd83adf..9196b8c 100644
--- a/README.md
+++ b/README.md
@@ -48,7 +48,7 @@ Embed a REPL with the `py-repl` directive:
 
 Most options drive [pyrepl-web](https://github.com/chrizzFTD/pyrepl-web)'s attributes, with a few exceptions unique to this extension: 
 
-| Option | Description | pyrepl-web attr? |
+| Option | Description | `pyrepl-web` attr? |
 |--------|-------------|------------------|
 | `:theme:` | Color theme (`catppuccin-mocha`, `catppuccin-latte`) | ✅                |
 | `:packages:` | Comma-separated PyPI packages to preload | ✅                |
diff --git a/pyproject.toml b/pyproject.toml
index 0b4e774..254604b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,19 +8,27 @@ authors = [{name = "Christian López Barrón", email = "chris.gfz@gmail.com"}]
 readme = "README.md"
 license = {file = "LICENSE"}
 classifiers = [
-    "Programming Language :: Python :: 3",
+    "Development Status :: 4 - Beta",
     "Framework :: Sphinx :: Extension",
     "License :: OSI Approved :: MIT License",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
+    "Topic :: Documentation",
 ]
 keywords = ["sphinx", "pyrepl", "pyodide", "repl"]
 dynamic = ["version", "description"]
-requires-python = ">=3.14"
+requires-python = ">=3.12"
 dependencies = [
     "sphinx>9",
 ]
 
 [project.urls]
 Home = "https://github.com/chrizzFTD/sphinx-pyrepl-web"
+Documentation = "https://sphinx-pyrepl-web.readthedocs.io/"
+Repository = "https://github.com/chrizzFTD/sphinx-pyrepl-web"
+Issues = "https://github.com/chrizzFTD/sphinx-pyrepl-web/issues"
 
 [project.optional-dependencies]
 test = [
diff --git a/tests/test_basic.py b/tests/test_basic.py
index 1133ec2..42f9df1 100644
--- a/tests/test_basic.py
+++ b/tests/test_basic.py
@@ -17,9 +17,10 @@ def test_basic(sphinx_doctree: CreateDoctree):
 
     """
     )
-    assert (
-        [line.rstrip() for line in result.pformat().strip().splitlines()]
-        == """
+    lines = [line.rstrip() for line in result.pformat().strip().splitlines()]
+    # Sphinx may serialize doctree bool attrs as "1" or "True" depending on version.
+    lines[0] = lines[0].replace('pyrepl="True"', 'pyrepl="1"')
+    assert lines == """
 <document pyrepl="1" source="<src>/index.rst">
     <section ids="test" names="test">
         <title>
@@ -29,7 +30,6 @@ def test_basic(sphinx_doctree: CreateDoctree):
         <raw format="html" xml:space="preserve">
             <py-repl></py-repl>
     """.strip().splitlines()
-    )
 
 
 def test_replay_body(sphinx_doctree: CreateDoctree):