diff --git a/.github/workflows/pythonpackage.yml b/.github/workflows/pythonpackage.yml
index fc7b29e6..4ff59c6d 100644
--- a/.github/workflows/pythonpackage.yml
+++ b/.github/workflows/pythonpackage.yml
@@ -38,7 +38,7 @@ jobs:
       run: |
         python -m pip install --upgrade pip
         pip install -r requirements.txt
-        pip install --no-deps -e .
+        pip install -e .
 
     - name: Lint with flake8
       run: |
diff --git a/recirq/fermi_hubbard/extra-requirements.txt b/recirq/fermi_hubbard/extra-requirements.txt
new file mode 100644
index 00000000..3ad045dc
--- /dev/null
+++ b/recirq/fermi_hubbard/extra-requirements.txt
@@ -0,0 +1 @@
+openfermion
\ No newline at end of file
diff --git a/recirq/hfvqe/extra-requirements.txt b/recirq/hfvqe/extra-requirements.txt
new file mode 100644
index 00000000..680ae3c7
--- /dev/null
+++ b/recirq/hfvqe/extra-requirements.txt
@@ -0,0 +1,3 @@
+# fix bug with openfermionpyscf https://github.com/quantumlib/ReCirq/issues/200#issuecomment-923203883
+h5py~=3.2.1
+openfermion~=1.2.0
diff --git a/recirq/optimize/extra-requirements.txt b/recirq/optimize/extra-requirements.txt
new file mode 100644
index 00000000..d5e06028
--- /dev/null
+++ b/recirq/optimize/extra-requirements.txt
@@ -0,0 +1 @@
+scikit-learn
diff --git a/recirq/otoc/extra-requirements.txt b/recirq/otoc/extra-requirements.txt
new file mode 100644
index 00000000..e000a66d
--- /dev/null
+++ b/recirq/otoc/extra-requirements.txt
@@ -0,0 +1 @@
+Py-BOBYQA
diff --git a/recirq/qaoa/extra-requirements.txt b/recirq/qaoa/extra-requirements.txt
new file mode 100644
index 00000000..de9c8413
--- /dev/null
+++ b/recirq/qaoa/extra-requirements.txt
@@ -0,0 +1 @@
+pytket-cirq~=0.16.0
diff --git a/requirements.txt b/requirements.txt
index 7fc8fd16..947c6874 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -7,25 +7,4 @@ cirq-google~=0.12.0
 seaborn
 sphinx
 ipython
-black
-
-# optimize
-scikit-learn
-
-# qaoa
-networkx
-pytket-cirq~=0.16.0
-
-# quantum chess, only needed for tests
-scipy
-
-# hfvqe
-openfermion~=1.2.0
-# fix bug with openfermionpyscf https://github.com/quantumlib/ReCirq/issues/200#issuecomment-923203883
-h5py~=3.2.1
-
-# fermi_hubbard
-tqdm  # notebook progress bars
-
-# otoc
-Py-BOBYQA
+black
\ No newline at end of file
diff --git a/setup.py b/setup.py
index 5e5bbfa5..0a821c01 100644
--- a/setup.py
+++ b/setup.py
@@ -13,22 +13,41 @@
 # limitations under the License.
 
 import pathlib
+import functools
+import operator
+
 from setuptools import find_packages, setup
 
 __version__ = ''
 exec(open('recirq/_version.py').read())
 assert __version__, 'Version string cannot be empty'
 
-required_packages = pathlib.Path('requirements.txt').read_text().split('\n')
-INSTALL_PACKAGES = [pkg for pkg in required_packages if pkg and not pkg.startswith('#')]
+
+def _parse_requirements(path: pathlib.Path):
+    lines = [line.strip() for line in path.read_text().splitlines() if line]
+    return [line for line in lines if not line.startswith('#')]
+
+
+install_requires = _parse_requirements(pathlib.Path('requirements.txt'))
+extras_require = [
+    'otoc', 'qaoa', 'optimize', 'hfvqe', 'fermi_hubbard'
+]
+extras_require = {
+    r: _parse_requirements(pathlib.Path(f'recirq/{r}/extra-requirements.txt'))
+    for r in extras_require
+}
+
+# TODO(gh-231): remove and require users to install via extras_require.
+install_requires = functools.reduce(operator.add, extras_require.values(), install_requires)
 
 setup(name='recirq',
       version=__version__,
-      url='http://github.com/quantumlib/cirq',
-      author='The Cirq Developers',
+      url='http://github.com/quantumlib/recirq',
+      author='Quantum AI team and collaborators',
       author_email='cirq@googlegroups.com',
       python_requires='>=3.6.0',
-      install_requires=INSTALL_PACKAGES,
+      install_requires=install_requires,
+      extras_require=extras_require,
       license='Apache 2',
       description="",
       long_description=open('README.md', encoding='utf-8').read(),