diff --git a/projects/cython.org/libcython/package.yml b/projects/cython.org/libcython/package.yml
new file mode 100644
index 00000000..1b7dacd8
--- /dev/null
+++ b/projects/cython.org/libcython/package.yml
@@ -0,0 +1,22 @@
+distributable:
+  url: https://github.com/cython/cython/archive/{{version}}.tar.gz
+  strip-components: 1
+versions:
+  github: cython/cython
+dependencies:
+  python.org: ^3.11
+  tea.xyz/gx/cc: c99
+runtime:
+  env:
+    PYTHONPATH: "{{prefix}}/lib/python{{deps.python.org.version.major}}/site-packages"
+build:
+  script:
+    - python -m pip install --prefix={{prefix}}/libexec .
+    - run: |
+        ln -s ../libexec/lib/python{{deps.python.org.version.marketing}} python{{deps.python.org.version.marketing}}
+        ln -s ../libexec/lib/python{{deps.python.org.version.marketing}} python{{deps.python.org.version.major}}
+      working-directory: "{{prefix}}/lib"
+test:
+  script:
+    - python setup.py build_ext --inplace
+    - python -c "import package_manager" | grep "You are using tea"
\ No newline at end of file
diff --git a/projects/cython.org/libcython/package_manager.pyx b/projects/cython.org/libcython/package_manager.pyx
new file mode 100644
index 00000000..7a0898b8
--- /dev/null
+++ b/projects/cython.org/libcython/package_manager.pyx
@@ -0,0 +1 @@
+print 'You are using tea'
diff --git a/projects/cython.org/libcython/setup.py b/projects/cython.org/libcython/setup.py
new file mode 100644
index 00000000..a7018ae7
--- /dev/null
+++ b/projects/cython.org/libcython/setup.py
@@ -0,0 +1,6 @@
+from distutils.core import setup
+from Cython.Build import cythonize
+
+setup(
+  ext_modules = cythonize("package_manager.pyx")
+)