fatal: repository 'https://github.com/xlab/linmath-go/' not found

[Nv7-GitHub]

When trying to run vulkancube or vulkandraw, I get

go: finding module for package github.com/xlab/closer
go: finding module for package github.com/vulkan-go/vulkan
go: finding module for package github.com/vulkan-go/asche
go: finding module for package github.com/vulkan-go/demos/vulkancube
go: finding module for package github.com/vulkan-go/glfw/v3.3/glfw
go: found github.com/vulkan-go/asche in github.com/vulkan-go/asche v0.0.0-20190912134304-d4b318b67e07
go: found github.com/vulkan-go/demos/vulkancube in github.com/vulkan-go/demos v0.0.0-20200912085326-922fc3db80c5
go: found github.com/vulkan-go/glfw/v3.3/glfw in github.com/vulkan-go/glfw v0.0.0-20210402172934-58379a80228d
go: found github.com/vulkan-go/vulkan in github.com/vulkan-go/vulkan v0.0.0-20210402152248-956e3850d8f9
go: found github.com/xlab/closer in github.com/xlab/closer v0.0.0-20190328110542-03326addb7c2
go: finding module for package github.com/xlab/linmath-go/linmath
go: finding module for package github.com/stretchr/testify/assert
go: found github.com/stretchr/testify/assert in github.com/stretchr/testify v1.7.0
go: finding module for package github.com/xlab/linmath-go/linmath
cube imports
        github.com/vulkan-go/asche imports
        github.com/xlab/linmath tested by
        github.com/xlab/linmath.test imports
        github.com/xlab/linmath-go/linmath: cannot find module providing package github.com/xlab/linmath-go/linmath: module github.com/xlab/linmath-go/linmath: git ls-remote -q origin in /Users/nishant/go/pkg/mod/cache/vcs/97833a51e0eb989d3a7ed868526b7c9da4576ae8e9721796c4eaad8eb994ea79: exit status 128:
        remote: Repository not found.
        fatal: repository 'https://github.com/xlab/linmath-go/' not found

[xlab]

Weird, it was https://github.com/xlab/linmath since 2017 :D