Bitbucket nuked all Mercurial repositories in 2020 in the midst of my cancer treatment so back then I wrote Sunsetting Mercurial support in Bitbucket – Bitbucket
So I am glad there is [Wayback/Archive] Mercurial Bitbucket Archive | Index
This is the archive of all public Mercurial projects that were hosted on Bitbucket before they [Wayback/Archive] removed Mercurial support on July 1, 2020. Some projects might be unavailable or incomplete because they were deleted or made private before we had a chance to archive them.