Rerouted (renamed, needs approval). The GitHub user or repository was renamed. The tag is still there, at the new name. The Lamdera package server serves a copy recovered from https://github.com/PascalLeMerrer/elm-advanced-grid.
What we checked: The repo moved to github.com/PascalLeMerrer/elm-advanced-grid and tag 1.0.1 is there; its commit c9df3923c8e8 is from 2019-12-05 09:11 UTC, after the version was published (2019-12-02 15:21 UTC); elm.json differs from package.elm-lang.org's; the exposed modules match docs.json; the zip's SHA-1 is not the published one and nothing else confirms its contents.
We could not verify this copy against what was published, so the Lamdera compiler asks before using it (y/n). Without a terminal, as in CI, it stops with an error unless approved:
lamdera make --auto-approve-package-rerouting approves rerouted versions for that run,LAMDERA_AUTO_APPROVE_PACKAGE_REROUTING=1 does the same for every run in that environment,LAMDERA_CACHE=off skips the Lamdera package server altogether: packages come from package.elm-lang.org and GitHub only, as with elm, and a rerouted version then fails to download.Details · package.elm-lang.org's zip: https://github.com/pascallemerrer/elm-advanced-grid/zipball/1.0.1/
This library displays a dynamically configurable grid of data.

It offers in-place filtering and sorting, multiple selection, click event listener and customizable rendering of the rows and cells. Columns can be resized using the mouse. They can also be reordered by drag and drop.
The data can count more than 20,000 lines, with a limited performance impact, thanks to the use of FabienHenon/elm-infinite-list-view under the hood.
Demos are available.
See the src/Examples directory content for the source code of the examples.