diff --git a/build/fbcode_builder/getdeps.py b/build/fbcode_builder/getdeps.py
index f488eb6c2..d6cefa27c 100755
--- a/build/fbcode_builder/getdeps.py
+++ b/build/fbcode_builder/getdeps.py
@@ -468,7 +468,12 @@ class BuildCmd(ProjectCmdBase):
             build_dir = loader.get_project_build_dir(m)
             inst_dir = loader.get_project_install_dir(m)
 
-            if m == manifest or not args.no_deps:
+            if (
+                m == manifest
+                and not args.only_deps
+                or m != manifest
+                and not args.no_deps
+            ):
                 print("Assessing %s..." % m.name)
                 project_hash = loader.get_project_hash(m)
                 ctx = loader.ctx_gen.get_context(m.name)
@@ -610,6 +615,16 @@ class BuildCmd(ProjectCmdBase):
                 "slow up-to-date-ness checks"
             ),
         )
+        parser.add_argument(
+            "--only-deps",
+            action="store_true",
+            default=False,
+            help=(
+                "Only build the named project's deps. "
+                "This is most useful when you want to separate out building "
+                "of all of the deps and your project"
+            ),
+        )
         parser.add_argument(
             "--no-build-cache",
             action="store_false",
diff --git a/build/fbcode_builder/manifests/mononoke b/build/fbcode_builder/manifests/mononoke
new file mode 100644
index 000000000..c15367b26
--- /dev/null
+++ b/build/fbcode_builder/manifests/mononoke
@@ -0,0 +1,41 @@
+[manifest]
+name = mononoke
+fbsource_path = fbcode/eden
+shipit_project = eden
+shipit_fbcode_builder = true
+
+[git]
+repo_url = https://github.com/facebookexperimental/eden.git
+
+[build.os=linux]
+builder = cargo
+
+[build.not(os=linux)]
+# building Mononoke on windows is not supported
+builder = nop
+
+[cargo]
+build_doc = true
+workspace_dir = eden/mononoke
+
+[shipit.pathmap]
+fbcode/configerator/structs/scm/mononoke/public_autocargo = eden/mononoke/config_structs
+fbcode/configerator/structs/scm/mononoke = eden/mononoke/config_structs
+fbcode/eden/oss = .
+fbcode/eden = eden
+fbcode/eden/mononoke/public_autocargo = eden/mononoke
+fbcode/tools/lfs = tools/lfs
+tools/rust/ossconfigs = .
+
+[shipit.strip]
+# strip all code unrelated to mononoke to prevent triggering unnecessary checks
+^fbcode/eden/(?!mononoke|scm/lib/xdiff.*)/.*$
+^fbcode/eden/mononoke/(?!public_autocargo).+/Cargo\.toml$
+^fbcode/configerator/structs/scm/mononoke/(?!public_autocargo).+/Cargo\.toml$
+
+[dependencies]
+fbthrift-rust
+rust-shed
+
+[dependencies.fb=on]
+rust