Sitecore JavaScript Services
Sitecore JavaScript Services allow you to develop against the Sitecore Experience Platform in decoupled JavaScript applications. For use of Sitecore JSS with Sitecore 10.1 and later, see Sitecore Headless Rendering downloads.
We have discovered an issue with some of our Developer downloads. Out of an abundance of caution we have temporarily disabled download ability while we address this issue. We hope to have access available as soon as possible; in the meantime please work with your customer support / account executive representative to get the access you need.
For information on how to file a support case, please refer to this article