Here is my example using mautrix-facebook [https://github.com/tulir/mautrix-facebook] as example‌ $ mkdir bridges/facebook $ cd bridges/facebook $ virtualenv -p /usr/local/bin/python3.7 . $ bash $ source bin/activate $ pip install --global-option=build_ext --global-option="-I/usr/local/include" --upgrade git+https://github.com/tulir/mautrix-facebook.git#