diff --git a/Makefile b/Makefile
index 625c9ec..619b0fc 100644
--- a/Makefile
+++ b/Makefile
@@ -27,3 +27,36 @@ release-%:
 		$(RELEASE_DRY_RUN) \
 		-vv --no-dev-version --exclude-unchanged \
 		$*
+
+###########################################################################
+
+# OK, rather than doing it myself (per
+# https://eighty-twenty.org/2019/10/15/cross-compiling-rust), it turns
+# out past a certain level of complexity we need more than just a
+# linker but also a C compiler, compatible headers, and so forth. This
+# proved nontrivial. The Rust team maintains a docker-based
+# cross-compilation environment that's very easy to use, so instead,
+# I'll just use that!
+#
+# cargo install cross
+#
+# The `vendored-openssl` thing is necessary because otherwise I'd have
+# to mess about with getting a musl build of openssl, plus its headers
+# etc, ready on my system despite being otherwise able to rely on
+# cross. I think. It's a bit confusing.
+
+arm-binary: arm-binary-release
+
+arm-binary-release:
+	cross build --target=armv7-unknown-linux-musleabihf --release --all-targets --features vendored-openssl
+
+arm-binary-debug:
+	cross build --target=armv7-unknown-linux-musleabihf --all-targets --features vendored-openssl
+
+aarch64-binary: aarch64-binary-release
+
+aarch64-binary-release:
+	cross build --target=aarch64-unknown-linux-musl --release --all-targets --features vendored-openssl
+
+aarch64-binary-debug:
+	cross build --target=aarch64-unknown-linux-musl --all-targets --features vendored-openssl
diff --git a/syndicate-server/Makefile b/syndicate-server/Makefile
index 89fa16f..5609648 100644
--- a/syndicate-server/Makefile
+++ b/syndicate-server/Makefile
@@ -17,34 +17,3 @@ binary-release:
 
 binary-debug:
 	cargo build --all-targets
-
-# OK, rather than doing it myself (per
-# https://eighty-twenty.org/2019/10/15/cross-compiling-rust), it turns
-# out past a certain level of complexity we need more than just a
-# linker but also a C compiler, compatible headers, and so forth. This
-# proved nontrivial. The Rust team maintains a docker-based
-# cross-compilation environment that's very easy to use, so instead,
-# I'll just use that!
-#
-# cargo install cross
-#
-# The `vendored-openssl` thing is necessary because otherwise I'd have
-# to mess about with getting a musl build of openssl, plus its headers
-# etc, ready on my system despite being otherwise able to rely on
-# cross. I think. It's a bit confusing.
-
-arm-binary: arm-binary-release
-
-arm-binary-release:
-	cross build --target=armv7-unknown-linux-musleabihf --release --all-targets --features vendored-openssl
-
-arm-binary-debug:
-	cross build --target=armv7-unknown-linux-musleabihf --all-targets --features vendored-openssl
-
-aarch64-binary: aarch64-binary-release
-
-aarch64-binary-release:
-	cross build --target=aarch64-unknown-linux-musl --release --all-targets --features vendored-openssl
-
-aarch64-binary-debug:
-	cross build --target=aarch64-unknown-linux-musl --all-targets --features vendored-openssl