We use both GPU and TPU, but use our own installed Jupyter to keep a copy as backup. Many of our developers like colab, just the reason we keep backup because

We use both GPU and TPU, but use our own installed Jupyter to keep a copy as backup. Many of our developers like colab, just the reason we keep backup because we have been bitten by google shutting down services more than once. In one case we need to do a re-write of the complete app.