brew install terragrunt

==> Installing terragrunt
==> Pouring terragrunt--0.38.8.arm64_monterey.bottle.tar.gz
🍺  /Users/your-user/brew/Cellar/terragrunt/0.38.8: 5 files, 26.5MB

See also

• Terragrunt [ show | plan | run-all | apply | output | destroy | terragrunt-info | render-json | graph-dependencies | fmt | hclfmt | validate |aws-provider-patch ], Terragrunt: inputs:,terragrunt --help, terragrunt.hcl, tfswitch, Blocks, generate