Hey. I'm the author of the post. Thanks for sharing the pricing link.
We've added everyone who signed up for the waitlist and will likely continue on this pace. We've just implemented it to scale the load on the service gradually, and once we have more real-world signup patterns, we'll be able to allow direct signups.
Right now, the CI/CD runners are linux based, and each tier has various limits on the number of minutes. It works out to about 200 minutes per user. Extending to be able to use other OSes is definitely on the roadmap.
If you sign up for the waitlist and then go into the dashboard you'll be able to see the exact limits of what you can sign up for (space, bandwidth, etc..), and also the discounts per tier.
