Appears this project has been removed or deleted, not sure just yet.
Unable to checkout refs/tags/v1.1.0 from https://github.com/paf31/purescript-preface.git.
removing `.git'...
builder for ‘/nix/store/0wwqwwfz8c94flapbrnk991q7ibyp0l6-purescript-preface.drv’ failed with exit code 1
Appears this project has been removed or deleted, not sure just yet.