diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 7b00b5d4ac..ef46de551a 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -6,4 +6,10 @@ repos:
         entry: python3 agentydragon/tools/check_task_frontmatter.py
         language: python
         additional_dependencies: [PyYAML]
-        files: ^agentydragon/tasks/[0-9]{2}-.*\.md$
\ No newline at end of file
+        files: ^agentydragon/tasks/[0-9]{2}-.*\.md$
+      - id: cargo-build
+        name: Check Rust workspace builds
+        entry: bash -lc 'cd codex-rs && cargo build --workspace --locked'
+        language: system
+        pass_filenames: false
+        require_serial: true
\ No newline at end of file
diff --git a/codex-rs/README.md b/codex-rs/README.md
index 9b18dda624..30b13c0eb2 100644
--- a/codex-rs/README.md
+++ b/codex-rs/README.md
@@ -11,8 +11,19 @@ npm i -g @openai/codex@native
 codex
 ```
 
-You can also download a platform-specific release directly from our [GitHub Releases](https://github.com/openai/codex/releases).
+You can also build and install the Rust-native binary from source:
 
+```shell
+cargo install --path cli --locked
+```
+
+By default this installs into `$HOME/.cargo/bin`, so make sure that's on your `PATH`. To install system-wide (e.g. to `/usr/local`), run:
+
+```shell
+sudo cargo install --path cli --locked --root /usr/local
+```
+
+You can also download a platform-specific release directly from our [GitHub Releases](https://github.com/openai/codex/releases).
 ## What's new in the Rust CLI
 
 While we are [working to close the gap between the TypeScript and Rust implementations of Codex CLI](https://github.com/openai/codex/issues/1262), note that the Rust CLI has a number of features that the TypeScript CLI does not!