diff --git a/recipe_modules/checkout/api.py b/recipe_modules/checkout/api.py
index 03e0ceb..9b5f5ab 100644
--- a/recipe_modules/checkout/api.py
+++ b/recipe_modules/checkout/api.py
@@ -1278,6 +1278,22 @@
         if len(files) == 1:
             ctx.root = files.pop()
 
+    def _configure_insteadof(self, ctx):
+        """Configure git to use some urls in place of others."""
+        if not ctx.options.rewrites:
+            return
+
+        with self.m.step.nest('insteadof'):
+            for rewrite in ctx.options.rewrites:
+                self.m.git(
+                    f"{rewrite.original} to {rewrite.final}",
+                    "config",
+                    "--global",
+                    "--add",
+                    f"url.{rewrite.final}.insteadof",
+                    rewrite.original,
+                )
+
     def _name(self, options):
         """Turn "https://foo/bar/baz.git" into "baz"."""
         name = options.remote.rstrip('/')
@@ -1321,6 +1337,8 @@
                     ctx, options.remote, options.branch
                 )
 
+            self._configure_insteadof(ctx)
+
             if options.use_repo:
                 self._repo(ctx)
 
diff --git a/recipe_modules/checkout/options.proto b/recipe_modules/checkout/options.proto
index 20c0a39..9e0459f 100644
--- a/recipe_modules/checkout/options.proto
+++ b/recipe_modules/checkout/options.proto
@@ -20,6 +20,12 @@
   repeated string remotes = 1;
 }
 
+message Rewrite {
+  // Configure git to rewrite all URLs with a prefix of original to final.
+  string original = 1;
+  string final = 2;
+}
+
 message Options {
   // Path to remote repository. (Default:
   // "https://pigweed.googlesource.com/pigweed/pigweed")
@@ -104,4 +110,7 @@
   // Limit the Android Repo Tool checkout to these groups from the manifest
   // file.
   repeated string manifest_groups = 19;
+
+  // Rewrites of Git remotes.
+  repeated Rewrite rewrites = 20;
 }
diff --git a/recipe_modules/checkout/test_api.py b/recipe_modules/checkout/test_api.py
index ea34d64..4556a61 100644
--- a/recipe_modules/checkout/test_api.py
+++ b/recipe_modules/checkout/test_api.py
@@ -121,6 +121,7 @@
         included_submodules=(),
         excluded_submodules=(),
         manifest_groups=(),
+        rewrites=(),
     ):
         props = checkout_options.Options()
         props.remote = remote
@@ -139,6 +140,9 @@
         props.included_submodules.extend(included_submodules)
         props.excluded_submodules.extend(excluded_submodules)
         props.manifest_groups.extend(manifest_groups)
+        props.rewrites.extend(
+            checkout_options.Rewrite(original=x, final=y) for x, y in rewrites
+        )
         return props
 
     def repo_options(
diff --git a/recipe_modules/checkout/tests/submodule.expected/insteadof.json b/recipe_modules/checkout/tests/submodule.expected/insteadof.json
new file mode 100644
index 0000000..393b1cc
--- /dev/null
+++ b/recipe_modules/checkout/tests/submodule.expected/insteadof.json
@@ -0,0 +1,1807 @@
+[
+  {
+    "cmd": [],
+    "name": "checkout pigweed",
+    "~followup_annotations": [
+      "@@@STEP_LINK@applied pigweed:123456@https://pigweed-review.googlesource.com/c/123456@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checkout pigweed.change data",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checkout pigweed.change data.process gerrit changes",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@2@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checkout pigweed.change data.process gerrit changes.0",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@3@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checkout pigweed.change data.process gerrit changes.0.ensure gerrit",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@4@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "vpython3",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "RECIPE_MODULE[fuchsia::gerrit]/resources/tool_manifest.json",
+      "/path/to/tmp/json"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.change data.process gerrit changes.0.ensure gerrit.read manifest",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@5@@@",
+      "@@@STEP_LOG_LINE@tool_manifest.json@{@@@",
+      "@@@STEP_LOG_LINE@tool_manifest.json@  \"path\": \"path/to/gerrit\",@@@",
+      "@@@STEP_LOG_LINE@tool_manifest.json@  \"version\": \"version:pinned-version\"@@@",
+      "@@@STEP_LOG_LINE@tool_manifest.json@}@@@",
+      "@@@STEP_LOG_END@tool_manifest.json@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checkout pigweed.change data.process gerrit changes.0.ensure gerrit.install path/to/gerrit",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@5@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "vpython3",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "ensure-directory",
+      "--mode",
+      "0777",
+      "[START_DIR]/cipd_tool/path/to/gerrit/version%3Apinned-version"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.change data.process gerrit changes.0.ensure gerrit.install path/to/gerrit.ensure package directory",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@6@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "cipd",
+      "ensure",
+      "-root",
+      "[START_DIR]/cipd_tool/path/to/gerrit/version%3Apinned-version",
+      "-ensure-file",
+      "path/to/gerrit version:pinned-version",
+      "-max-threads",
+      "0",
+      "-json-output",
+      "/path/to/tmp/json"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.change data.process gerrit changes.0.ensure gerrit.install path/to/gerrit.ensure_installed",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@6@@@",
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"result\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@    \"\": [@@@",
+      "@@@STEP_LOG_LINE@json.output@      {@@@",
+      "@@@STEP_LOG_LINE@json.output@        \"instance_id\": \"resolved-instance_id-of-version:pinned-v\", @@@",
+      "@@@STEP_LOG_LINE@json.output@        \"package\": \"path/to/gerrit\"@@@",
+      "@@@STEP_LOG_LINE@json.output@      }@@@",
+      "@@@STEP_LOG_LINE@json.output@    ]@@@",
+      "@@@STEP_LOG_LINE@json.output@  }@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
+      "@@@STEP_LOG_END@json.output@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "[START_DIR]/cipd_tool/path/to/gerrit/version%3Apinned-version/gerrit",
+      "change-detail",
+      "-host",
+      "https://pigweed-review.googlesource.com",
+      "-input",
+      "{\"change_id\": \"123456\", \"params\": {\"o\": [\"CURRENT_COMMIT\", \"CURRENT_REVISION\"]}}",
+      "-output",
+      "/path/to/tmp/json"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.change data.process gerrit changes.0.details",
+    "timeout": 30,
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@4@@@",
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"branch\": \"main\", @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"current_revision\": \"ffffffffffffffffffffffffffffffffffffffff\", @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"project\": \"pigweed\", @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"revisions\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@    \"ffffffffffffffffffffffffffffffffffffffff\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@      \"commit\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@        \"message\": \"\", @@@",
+      "@@@STEP_LOG_LINE@json.output@        \"parents\": [@@@",
+      "@@@STEP_LOG_LINE@json.output@          {}@@@",
+      "@@@STEP_LOG_LINE@json.output@        ]@@@",
+      "@@@STEP_LOG_LINE@json.output@      }@@@",
+      "@@@STEP_LOG_LINE@json.output@    }@@@",
+      "@@@STEP_LOG_LINE@json.output@  }@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
+      "@@@STEP_LOG_END@json.output@@@",
+      "@@@STEP_LOG_LINE@json.input@{@@@",
+      "@@@STEP_LOG_LINE@json.input@  \"change_id\": \"123456\", @@@",
+      "@@@STEP_LOG_LINE@json.input@  \"params\": {@@@",
+      "@@@STEP_LOG_LINE@json.input@    \"o\": [@@@",
+      "@@@STEP_LOG_LINE@json.input@      \"CURRENT_COMMIT\", @@@",
+      "@@@STEP_LOG_LINE@json.input@      \"CURRENT_REVISION\"@@@",
+      "@@@STEP_LOG_LINE@json.input@    ]@@@",
+      "@@@STEP_LOG_LINE@json.input@  }@@@",
+      "@@@STEP_LOG_LINE@json.input@}@@@",
+      "@@@STEP_LOG_END@json.input@@@",
+      "@@@STEP_LINK@gerrit link@https://pigweed-review.googlesource.com/q/123456@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checkout pigweed.change data.process gerrit changes.resolve CL deps",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@3@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "[START_DIR]/cipd_tool/path/to/gerrit/version%3Apinned-version/gerrit",
+      "change-detail",
+      "-host",
+      "https://pigweed-review.googlesource.com",
+      "-input",
+      "{\"change_id\": \"123456\", \"params\": {\"o\": [\"CURRENT_COMMIT\", \"CURRENT_REVISION\"]}}",
+      "-output",
+      "/path/to/tmp/json"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.change data.process gerrit changes.resolve CL deps.details pigweed:123456",
+    "timeout": 30,
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@4@@@",
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"current_revision\": \"HASH\", @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"project\": \"project\", @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"revisions\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@    \"HASH\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@      \"_number\": 1, @@@",
+      "@@@STEP_LOG_LINE@json.output@      \"commit\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@        \"message\": \"\", @@@",
+      "@@@STEP_LOG_LINE@json.output@        \"parents\": [@@@",
+      "@@@STEP_LOG_LINE@json.output@          {@@@",
+      "@@@STEP_LOG_LINE@json.output@            \"commit\": \"PARENT\"@@@",
+      "@@@STEP_LOG_LINE@json.output@          }@@@",
+      "@@@STEP_LOG_LINE@json.output@        ]@@@",
+      "@@@STEP_LOG_LINE@json.output@      }@@@",
+      "@@@STEP_LOG_LINE@json.output@    }@@@",
+      "@@@STEP_LOG_LINE@json.output@  }, @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"status\": \"NEW\"@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
+      "@@@STEP_LOG_END@json.output@@@",
+      "@@@STEP_LOG_LINE@json.input@{@@@",
+      "@@@STEP_LOG_LINE@json.input@  \"change_id\": \"123456\", @@@",
+      "@@@STEP_LOG_LINE@json.input@  \"params\": {@@@",
+      "@@@STEP_LOG_LINE@json.input@    \"o\": [@@@",
+      "@@@STEP_LOG_LINE@json.input@      \"CURRENT_COMMIT\", @@@",
+      "@@@STEP_LOG_LINE@json.input@      \"CURRENT_REVISION\"@@@",
+      "@@@STEP_LOG_LINE@json.input@    ]@@@",
+      "@@@STEP_LOG_LINE@json.input@  }@@@",
+      "@@@STEP_LOG_LINE@json.input@}@@@",
+      "@@@STEP_LOG_END@json.input@@@",
+      "@@@STEP_LINK@gerrit link@https://pigweed-review.googlesource.com/q/123456@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "[START_DIR]/cipd_tool/path/to/gerrit/version%3Apinned-version/gerrit",
+      "change-query",
+      "-host",
+      "https://pigweed-review.googlesource.com",
+      "-input",
+      "{\"params\": {\"q\": \"commit:PARENT\"}}",
+      "-output",
+      "/path/to/tmp/json"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.change data.process gerrit changes.resolve CL deps.number PARENT",
+    "timeout": 30,
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@4@@@",
+      "@@@STEP_LOG_LINE@json.output@[@@@",
+      "@@@STEP_LOG_LINE@json.output@  {@@@",
+      "@@@STEP_LOG_LINE@json.output@    \"_number\": 458@@@",
+      "@@@STEP_LOG_LINE@json.output@  }@@@",
+      "@@@STEP_LOG_LINE@json.output@]@@@",
+      "@@@STEP_LOG_END@json.output@@@",
+      "@@@STEP_LOG_LINE@json.input@{@@@",
+      "@@@STEP_LOG_LINE@json.input@  \"params\": {@@@",
+      "@@@STEP_LOG_LINE@json.input@    \"q\": \"commit:PARENT\"@@@",
+      "@@@STEP_LOG_LINE@json.input@  }@@@",
+      "@@@STEP_LOG_LINE@json.input@}@@@",
+      "@@@STEP_LOG_END@json.input@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "[START_DIR]/cipd_tool/path/to/gerrit/version%3Apinned-version/gerrit",
+      "change-detail",
+      "-host",
+      "https://pigweed-review.googlesource.com",
+      "-input",
+      "{\"change_id\": \"458\", \"params\": {\"o\": [\"CURRENT_COMMIT\", \"CURRENT_REVISION\"]}}",
+      "-output",
+      "/path/to/tmp/json"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.change data.process gerrit changes.resolve CL deps.details pigweed:458",
+    "timeout": 30,
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@4@@@",
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"current_revision\": \"HASH\", @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"project\": \"project\", @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"revisions\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@    \"HASH\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@      \"_number\": 1, @@@",
+      "@@@STEP_LOG_LINE@json.output@      \"commit\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@        \"message\": \"\", @@@",
+      "@@@STEP_LOG_LINE@json.output@        \"parents\": [@@@",
+      "@@@STEP_LOG_LINE@json.output@          {@@@",
+      "@@@STEP_LOG_LINE@json.output@            \"commit\": \"PARENT\"@@@",
+      "@@@STEP_LOG_LINE@json.output@          }@@@",
+      "@@@STEP_LOG_LINE@json.output@        ]@@@",
+      "@@@STEP_LOG_LINE@json.output@      }@@@",
+      "@@@STEP_LOG_LINE@json.output@    }@@@",
+      "@@@STEP_LOG_LINE@json.output@  }, @@@",
+      "@@@STEP_LOG_LINE@json.output@  \"status\": \"SUBMITTED\"@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
+      "@@@STEP_LOG_END@json.output@@@",
+      "@@@STEP_LOG_LINE@json.input@{@@@",
+      "@@@STEP_LOG_LINE@json.input@  \"change_id\": \"458\", @@@",
+      "@@@STEP_LOG_LINE@json.input@  \"params\": {@@@",
+      "@@@STEP_LOG_LINE@json.input@    \"o\": [@@@",
+      "@@@STEP_LOG_LINE@json.input@      \"CURRENT_COMMIT\", @@@",
+      "@@@STEP_LOG_LINE@json.input@      \"CURRENT_REVISION\"@@@",
+      "@@@STEP_LOG_LINE@json.input@    ]@@@",
+      "@@@STEP_LOG_LINE@json.input@  }@@@",
+      "@@@STEP_LOG_LINE@json.input@}@@@",
+      "@@@STEP_LOG_END@json.input@@@",
+      "@@@STEP_LINK@gerrit link@https://pigweed-review.googlesource.com/q/458@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checkout pigweed.change data.process gerrit changes.resolve CL deps.parents pigweed:123456",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@4@@@",
+      "@@@STEP_SUMMARY_TEXT@all parents already submitted@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checkout pigweed.change data.process gerrit changes.resolve CL deps.resolve deps for pigweed:123456",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@4@@@",
+      "@@@STEP_SUMMARY_TEXT@no dependencies@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checkout pigweed.change data.process gerrit changes.resolve CL deps.pass",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@4@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checkout pigweed.change data.changes",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@2@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checkout pigweed.change data.changes.pigweed:123456",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@3@@@",
+      "@@@STEP_SUMMARY_TEXT@Change(number=123456, remote='https://pigweed.googlesource.com/pigweed/pigweed', ref='refs/changes/56/123456/7', rebase=True, project='pigweed', branch='main', gerrit_name='pigweed', submitted=False, patchset=7, base=None, base_type=None, is_merge=False, commit_message='')@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checkout pigweed.insteadof",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "git",
+      "config",
+      "--global",
+      "--add",
+      "url.https://github.mirror/foo.insteadof",
+      "https://github.com/foo"
+    ],
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.insteadof.https://github.com/foo to https://github.mirror/foo",
+    "timeout": 600.0,
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@2@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checkout pigweed.no non-standard branch names",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checkout pigweed.cache",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "vpython3",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "ensure-directory",
+      "--mode",
+      "0777",
+      "[CACHE]/git"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
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+    },
+    "name": "checkout pigweed.apply pigweed:123456.git rebase",
+    "timeout": 600.0,
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@2@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "git",
+      "rev-parse",
+      "https___pigweed_googlesource_com_pigweed_pigweed/main"
+    ],
+    "cwd": "[START_DIR]/co",
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.apply pigweed:123456.git rev-parse",
+    "timeout": 60.0,
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@2@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checkout pigweed.apply pigweed:123456.timeout 10s (3)",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@2@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "git",
+      "checkout",
+      "--detach"
+    ],
+    "cwd": "[START_DIR]/co",
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.apply pigweed:123456.detach",
+    "timeout": 600.0,
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@2@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "git",
+      "submodule",
+      "update",
+      "--init",
+      "--recursive",
+      "--jobs",
+      "4"
+    ],
+    "cwd": "[START_DIR]/co",
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.apply pigweed:123456.git submodule update",
+    "timeout": 600,
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@2@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "git",
+      "checkout",
+      "-"
+    ],
+    "cwd": "[START_DIR]/co",
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.apply pigweed:123456.reattach",
+    "timeout": 600.0,
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@2@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "python3",
+      "RECIPE_MODULE[pigweed::checkout]/resources/submodule_status.py",
+      "[START_DIR]/co",
+      "/path/to/tmp/json",
+      "--recursive"
+    ],
+    "cwd": "[START_DIR]/co",
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.submodule status",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@STEP_LOG_LINE@json.output@{@@@",
+      "@@@STEP_LOG_LINE@json.output@  \"foobar\": {@@@",
+      "@@@STEP_LOG_LINE@json.output@    \"branch\": \"main\", @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"conflict\": false, @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"describe\": \"\", @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"fetchRecurseSubmodules\": null, @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"hash\": \"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\", @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"ignore\": null, @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"initialized\": false, @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"modified\": false, @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"name\": \"foobar\", @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"path\": \"foobar\", @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"remote\": \"https://github.com/foo/bar\", @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"shallow\": false, @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"update\": null, @@@",
+      "@@@STEP_LOG_LINE@json.output@    \"url\": \"https://github.com/foo/bar\"@@@",
+      "@@@STEP_LOG_LINE@json.output@  }@@@",
+      "@@@STEP_LOG_LINE@json.output@}@@@",
+      "@@@STEP_LOG_END@json.output@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checkout pigweed.status",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@STEP_SUMMARY_TEXT@applied [Change(number=123456, remote='https://pigweed.googlesource.com/pigweed/pigweed', ref='refs/changes/56/123456/7', rebase=True, project='pigweed', branch='main', gerrit_name='pigweed', submitted=False, patchset=7, base='REMOTE_BRANCH_REMOTE_BRANCH_REMOTE_BRANCH_', base_type='remote_branch_tip', is_merge=False, commit_message='')]\nnot applied []@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "vpython3",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "[{\"applied\": true, \"base\": \"REMOTE_BRANCH_REMOTE_BRANCH_REMOTE_BRANCH_\", \"base_type\": \"remote_branch_tip\", \"branch\": \"main\", \"commit_message\": \"\", \"gerrit_name\": \"pigweed\", \"is_merge\": false, \"number\": 123456, \"patchset\": 7, \"project\": \"pigweed\", \"rebase\": true, \"ref\": \"refs/changes/56/123456/7\", \"remote\": \"https://pigweed.googlesource.com/pigweed/pigweed\", \"submitted\": false}]",
+      "[CLEANUP]/tmp_tmp_1"
+    ],
+    "cwd": "[START_DIR]/co",
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.write changes.json",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@STEP_LOG_LINE@tmp_tmp_1@[{\"applied\": true, \"base\": \"REMOTE_BRANCH_REMOTE_BRANCH_REMOTE_BRANCH_\", \"base_type\": \"remote_branch_tip\", \"branch\": \"main\", \"commit_message\": \"\", \"gerrit_name\": \"pigweed\", \"is_merge\": false, \"number\": 123456, \"patchset\": 7, \"project\": \"pigweed\", \"rebase\": true, \"ref\": \"refs/changes/56/123456/7\", \"remote\": \"https://pigweed.googlesource.com/pigweed/pigweed\", \"submitted\": false}]@@@",
+      "@@@STEP_LOG_END@tmp_tmp_1@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checkout pigweed.git log",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "git",
+      "log",
+      "--oneline",
+      "-n",
+      "10"
+    ],
+    "cwd": "[START_DIR]/co",
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.git log.[START_DIR]/co",
+    "timeout": 600.0,
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@2@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "git",
+      "log",
+      "--oneline",
+      "-n",
+      "10"
+    ],
+    "cwd": "[START_DIR]/co/foobar",
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.git log.[START_DIR]/co/foobar",
+    "timeout": 600.0,
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@2@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "checkout pigweed.base",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@SET_BUILD_PROPERTY@got_revision@\"REMOTE_BRANCH_REMOTE_BRANCH_REMOTE_BRANCH_\"@@@",
+      "@@@SET_BUILD_PROPERTY@got_revision_type@\"remote_branch_tip\"@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "vpython3",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "ensure-directory",
+      "--mode",
+      "0777",
+      "[START_DIR]/snapshot"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.mkdir",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "git",
+      "submodule",
+      "status",
+      "--recursive"
+    ],
+    "cwd": "[START_DIR]/co",
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.submodule-status",
+    "timeout": 600.0,
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "vpython3",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "submodule status filler text",
+      "[START_DIR]/snapshot/submodules.log"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.write submodule snapshot",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@STEP_LOG_LINE@submodules.log@submodule status filler text@@@",
+      "@@@STEP_LOG_END@submodules.log@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "git",
+      "log",
+      "--oneline",
+      "-n",
+      "10"
+    ],
+    "cwd": "[START_DIR]/co",
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.log",
+    "timeout": 600.0,
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "vpython3",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "",
+      "[START_DIR]/snapshot/git.log"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "checkout pigweed.write git log",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@STEP_LOG_END@git.log@@@"
+    ]
+  },
+  {
+    "cmd": [],
+    "name": "snapshot_to_dir"
+  },
+  {
+    "cmd": [
+      "vpython3",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "ensure-directory",
+      "--mode",
+      "0777",
+      "[START_DIR]/snapshot"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "snapshot_to_dir.mkdir",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "vpython3",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "submodule status filler text",
+      "[START_DIR]/snapshot/submodules.log"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "snapshot_to_dir.write submodule snapshot",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@STEP_LOG_LINE@submodules.log@submodule status filler text@@@",
+      "@@@STEP_LOG_END@submodules.log@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "git",
+      "log",
+      "--oneline",
+      "-n",
+      "10"
+    ],
+    "cwd": "[START_DIR]/co",
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "snapshot_to_dir.log",
+    "timeout": 600.0,
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@"
+    ]
+  },
+  {
+    "cmd": [
+      "vpython3",
+      "-u",
+      "RECIPE_MODULE[recipe_engine::file]/resources/fileutil.py",
+      "--json-output",
+      "/path/to/tmp/json",
+      "copy",
+      "",
+      "[START_DIR]/snapshot/git.log"
+    ],
+    "infra_step": true,
+    "luci_context": {
+      "realm": {
+        "name": "project:try"
+      },
+      "resultdb": {
+        "current_invocation": {
+          "name": "invocations/build:8945511751514863184",
+          "update_token": "token"
+        },
+        "hostname": "rdbhost"
+      }
+    },
+    "name": "snapshot_to_dir.write git log",
+    "~followup_annotations": [
+      "@@@STEP_NEST_LEVEL@1@@@",
+      "@@@STEP_LOG_END@git.log@@@"
+    ]
+  },
+  {
+    "name": "$result"
+  }
+]
\ No newline at end of file
diff --git a/recipe_modules/checkout/tests/submodule.py b/recipe_modules/checkout/tests/submodule.py
index ac6bec6..ec214e6 100644
--- a/recipe_modules/checkout/tests/submodule.py
+++ b/recipe_modules/checkout/tests/submodule.py
@@ -270,3 +270,15 @@
             ),
         )
     )
+
+    yield (
+        api.test('insteadof')
+        + properties(
+            rewrites=[('https://github.com/foo', 'https://github.mirror/foo')],
+        )
+        + api.checkout.try_test_data()
+        + api.checkout.submodules(
+            api.checkout.submodule('foobar', 'https://github.com/foo/bar', ' '),
+        )
+        + api.checkout.all_changes_applied()
+    )