From my understanding there are a lot of companies that need their own package repositories, for a variety of reasons. I listened to a couple podcasts where Charlie Marsh outlined their plans for pyx, and why they felt their entry into that market would be profitable. My guess is that OpenAI just dangled way more money in their faces than what they were likely to get from pyx.
Having a private package index gives you a central place where all employees can install from, without having to screen what each person is installing. Also, if I remember right, there are some large AI and ML focused packages that benefit from an index that's tuned to your specific hardware and workflows.
Private artifact repositories also help to mitigate supply chain risk since you can host all of your screened packages and don't have to worry about something getting removed from mvn-central, PyPI, NPM, etc.
Plus the obvious need for a place to host proprietary internal libraries.
We have some kind of simple pip repo that is private where I work. What would astral bring to the table?
How many people use that simple pip repo daily? If the number is not in the high hundreds, or a few thousands; maybe nothing. But once you get up there, any kind of better coordination layer is useful enough to pay money to a third party for, unless maintaining a layer over pip is your core competency.
I mean that was a thing at one point but I feel like it is baked into github/gitlab etc now