diff --git a/extra/python-flit-core/build b/extra/python-flit-core/build
new file mode 100755
index 00000000..c6c0bb19
--- /dev/null
+++ b/extra/python-flit-core/build
@@ -0,0 +1,8 @@
+#!/bin/sh -e
+
+rm -rf flit_core/flit_core/vendor/
+python flit_core/build_dists.py
+
+python -m installer -d "$1" flit_core/dist/flit_core-$2-py3-none-any.whl
+
+rm -rf "$1"/usr/lib/python3*/site-packages/flit_core/tests
diff --git a/extra/python-flit-core/checksums b/extra/python-flit-core/checksums
new file mode 100644
index 00000000..93a5d196
--- /dev/null
+++ b/extra/python-flit-core/checksums
@@ -0,0 +1 @@
+a14e806578da1abff5ef9b5a31e948e3e74391e171e4b8a70acd4dc5348aa2f83e
diff --git a/extra/python-flit-core/depends b/extra/python-flit-core/depends
new file mode 100644
index 00000000..28be9928
--- /dev/null
+++ b/extra/python-flit-core/depends
@@ -0,0 +1,2 @@
+python
+python-installer make
diff --git a/extra/python-flit-core/sources b/extra/python-flit-core/sources
new file mode 100644
index 00000000..9aa15bdb
--- /dev/null
+++ b/extra/python-flit-core/sources
@@ -0,0 +1 @@
+https://files.pythonhosted.org/packages/source/f/flit/flit-3.9.0.tar.gz
diff --git a/extra/python-flit-core/version b/extra/python-flit-core/version
new file mode 100644
index 00000000..55ba938e
--- /dev/null
+++ b/extra/python-flit-core/version
@@ -0,0 +1 @@
+3.9.0 1