Freeze Cell Extension?

Hello,

I am looking for an extension similar to freeze (docs) that also works for jupyterlab. It seems that https://github.com/ipython-contrib/jupyter_contrib_nbextensions/tree/master/src/jupyter_contrib_nbextensions/nbextensions/freeze isn’t being ported to jupyterlab, so… any suggestions for how to lock cells (and their output?) from being executed when running all cells?