diff --git a/Library/Homebrew/cmd/--repository.rb b/Library/Homebrew/cmd/--repository.rb
deleted file mode 100644
index d3691290de..0000000000
--- a/Library/Homebrew/cmd/--repository.rb
+++ /dev/null
@@ -1,32 +0,0 @@
-# typed: strict
-# frozen_string_literal: true
-
-require "abstract_command"
-
-module Homebrew
-  module Cmd
-    class Repository < AbstractCommand
-      sig { override.returns(String) }
-      def self.command_name = "--repository"
-
-      cmd_args do
-        description <<~EOS
-          Display where Homebrew's Git repository is located.
-
-          If <user>`/`<repo> are provided, display where tap <user>`/`<repo>'s directory is located.
-        EOS
-
-        named_args :tap
-      end
-
-      sig { override.void }
-      def run
-        if args.no_named?
-          puts HOMEBREW_REPOSITORY
-        else
-          puts args.named.to_taps.map(&:path)
-        end
-      end
-    end
-  end
-end
diff --git a/Library/Homebrew/cmd/--repository.sh b/Library/Homebrew/cmd/--repository.sh
new file mode 100644
index 0000000000..90aad78969
--- /dev/null
+++ b/Library/Homebrew/cmd/--repository.sh
@@ -0,0 +1,44 @@
+#:  * `--repository`, `--repo` [<tap> ...]
+#:
+#:  Display where Homebrew's Git repository is located.
+#:
+#:  If <user>`/`<repo> are provided, display where tap <user>`/`<repo>'s directory is located.
+
+# HOMEBREW_REPOSITORY, HOMEBREW_LIBRARY are set by brew.sh
+# shellcheck disable=SC2154
+
+tap_path() {
+  local tap="$1"
+  local user
+  local repo
+  local part
+
+  user="$(echo "${tap%%/*}" | tr '[:upper:]' '[:lower:]')"
+  repo="$(echo "${tap#*/}" | tr '[:upper:]' '[:lower:]')"
+
+  for part in "${user}" "${repo}"
+  do
+    if [[ -z "${part}" || "${part}" == *"/"* ]]
+    then
+      odie "Invalid tap name: ${tap}"
+    fi
+  done
+
+  repo="${repo#(home|linux)brew-}"
+  echo "${HOMEBREW_LIBRARY}/Taps/${user}/homebrew-${repo}"
+}
+
+homebrew---repository() {
+  local tap
+
+  if [[ "$#" -eq 0 ]]
+  then
+    echo "${HOMEBREW_REPOSITORY}"
+    return
+  fi
+
+  for tap in "$@"
+  do
+    tap_path "${tap}"
+  done
+}
diff --git a/Library/Homebrew/test/cmd/--repository_spec.rb b/Library/Homebrew/test/cmd/--repository_spec.rb
index 1fcc495044..711dbf8549 100644
--- a/Library/Homebrew/test/cmd/--repository_spec.rb
+++ b/Library/Homebrew/test/cmd/--repository_spec.rb
@@ -1,11 +1,6 @@
 # frozen_string_literal: true
 
-require "cmd/--repository"
-require "cmd/shared_examples/args_parse"
-
-RSpec.describe Homebrew::Cmd::Repository do
-  it_behaves_like "parseable arguments"
-
+RSpec.describe "brew --repository", type: :system do
   it "prints Homebrew's repository", :integration_test do
     expect { brew_sh "--repository" }
       .to output("#{ENV.fetch("HOMEBREW_REPOSITORY")}\n").to_stdout
@@ -14,8 +9,8 @@ RSpec.describe Homebrew::Cmd::Repository do
   end
 
   it "prints a Tap's repository", :integration_test do
-    expect { brew "--repository", "foo/bar" }
-      .to output("#{HOMEBREW_LIBRARY}/Taps/foo/homebrew-bar\n").to_stdout
+    expect { brew_sh "--repository", "foo/bar" }
+      .to output("#{ENV.fetch("HOMEBREW_LIBRARY")}/Taps/foo/homebrew-bar\n").to_stdout
       .and not_to_output.to_stderr
       .and be_a_success
   end