You're looking at StableBuild's Deleted PyPI mirror - where we index all deleted packages from the Python package registry.

rf-mediapipe
0.10.21

This version was deleted from PyPI around 2025-12-08. Installing fails with:
$ pip3 install rf-mediapipe==0.10.21 ERROR: Could not find a version that satisfies the requirement rf-mediapipe==0.10.21