Its broken as of right now, so they removed everyone's access rights until they fix it.
Just be patient. They might have an announcement later.

From: Std-Discussion <std-discussion-bounces@lists.isocpp.org> on behalf of Stephan Bergmann via Std-Discussion <std-discussion@lists.isocpp.org>
Sent: Friday, November 7, 2025 11:15:58 AM
To: std-discussion@lists.isocpp.org <std-discussion@lists.isocpp.org>
Cc: Stephan Bergmann <sberg.fun@gmail.com>
Subject: [std-discussion] <https://github.com/cplusplus/draft/> is 404?
 
Sorry if this might be slightly off-topic here, but I found no better
channel where to ask:  As of recently,
<https://github.com/cplusplus/draft/> is 404 for me, as if that
repository has been removed from GitHub (or maybe made private)?  Is
there some announcement that I have missed?
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