diff --git a/.github/ISSUE_TEMPLATE/bug-report.yml b/.github/ISSUE_TEMPLATE/bug-report.yml
index 1ad710f..4e69f3a 100644
--- a/.github/ISSUE_TEMPLATE/bug-report.yml
+++ b/.github/ISSUE_TEMPLATE/bug-report.yml
@@ -1,5 +1,6 @@
 name: 🐛 Bug Report
 description: Create a report to help us reproduce and fix the bug
+title: "🐛[Bug Report]: "
 labels: ["bug"]
 
 body:
diff --git a/.github/ISSUE_TEMPLATE/feature-request.yml b/.github/ISSUE_TEMPLATE/feature-request.yml
index 8354753..bc30a06 100644
--- a/.github/ISSUE_TEMPLATE/feature-request.yml
+++ b/.github/ISSUE_TEMPLATE/feature-request.yml
@@ -1,4 +1,4 @@
-name: Feature Request
+name: 🚀 Feature Request
 description: Request new or improved functionality
 title: "🚀[Feature Request]: "
 labels: ["enhancement"]
diff --git a/Cargo.toml b/Cargo.toml
index 34225fd..bb7fb1a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
 [package]
 name = "gni"
 version = "0.1.0"
diff --git a/Makefile b/Makefile
index 4fb4dba..44af1e0 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
 BUILD_MODE ?= debug
 
 ifeq ($(BUILD_MODE), release)
diff --git a/README.md b/README.md
index baa78a8..e5ff48a 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,9 @@ GNI offers the same core functionality for each supported language, provides bin
 
 > Note: If you’d like support for another language, please open an issue or submit a pull request!
 
-## Contributing
+### Contributing
+
+Read our contributing guide to learn about our development process, how to propose bugfixes and feature requests, and how to build your changes.
 
 ### [Code of Conduct](https://code.fb.com/codeofconduct)
 
diff --git a/pyproject.toml b/pyproject.toml
index 2578ac7..d106d4f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
 [build-system]
 requires = ["maturin>=1.0"]
 build-backend = "maturin"
diff --git a/src/build.rs b/src/build.rs
index 61fc1b5..ed92a15 100644
--- a/src/build.rs
+++ b/src/build.rs
@@ -1,3 +1,9 @@
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+// All rights reserved.
+
+// This source code is licensed under the license found in the
+// LICENSE file in the root directory of this source tree.
+
 fn main() {
     if std::env::var("CARGO_FEATURE_CPP").is_ok() {
         // C++ build
diff --git a/src/c/GNI.c b/src/c/GNI.c
index 491ecd1..6e610ca 100644
--- a/src/c/GNI.c
+++ b/src/c/GNI.c
@@ -1,3 +1,9 @@
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+// All rights reserved.
+
+// This source code is licensed under the license found in the
+// LICENSE file in the root directory of this source tree.
+
 #include "GNI.h"
 #include <stdlib.h>
 #include <string.h>
diff --git a/src/c/GNI.h b/src/c/GNI.h
index 4fec33b..b3de3f1 100644
--- a/src/c/GNI.h
+++ b/src/c/GNI.h
@@ -1,3 +1,9 @@
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+// All rights reserved.
+
+// This source code is licensed under the license found in the
+// LICENSE file in the root directory of this source tree.
+
 #pragma once
 
 #ifdef __cplusplus
diff --git a/src/c/Makefile b/src/c/Makefile
index 2b02782..0d48a86 100644
--- a/src/c/Makefile
+++ b/src/c/Makefile
@@ -1,3 +1,8 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
 
 .PHONY: all libGNI.a clean
 
diff --git a/src/c/main.c b/src/c/main.c
index c69da73..219cb81 100644
--- a/src/c/main.c
+++ b/src/c/main.c
@@ -1,3 +1,9 @@
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+// All rights reserved.
+
+// This source code is licensed under the license found in the
+// LICENSE file in the root directory of this source tree.
+
 #include <stdio.h>
 
 extern char* c_get_gpu_node_id();
diff --git a/src/c/mod.rs b/src/c/mod.rs
index c66daae..95b8b95 100644
--- a/src/c/mod.rs
+++ b/src/c/mod.rs
@@ -1,3 +1,9 @@
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+// All rights reserved.
+
+// This source code is licensed under the license found in the
+// LICENSE file in the root directory of this source tree.
+
 use std::ffi::CString;
 use std::os::raw::c_char;
 
diff --git a/src/constants.rs b/src/constants.rs
index e156e94..8b6e140 100644
--- a/src/constants.rs
+++ b/src/constants.rs
@@ -1 +1,7 @@
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+// All rights reserved.
+
+// This source code is licensed under the license found in the
+// LICENSE file in the root directory of this source tree.
+
 pub const DEFAULT_CACHE_FILEPATH: &str = "/tmp/gni";
diff --git a/src/cpp/GNI.cpp b/src/cpp/GNI.cpp
index 65f3eb4..c33b1f1 100644
--- a/src/cpp/GNI.cpp
+++ b/src/cpp/GNI.cpp
@@ -1,3 +1,9 @@
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+// All rights reserved.
+
+// This source code is licensed under the license found in the
+// LICENSE file in the root directory of this source tree.
+
 #include "mod.rs.h"
 #include "GNI.h"
 
diff --git a/src/cpp/GNI.h b/src/cpp/GNI.h
index acf0654..1f6a820 100644
--- a/src/cpp/GNI.h
+++ b/src/cpp/GNI.h
@@ -1,3 +1,9 @@
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+// All rights reserved.
+
+// This source code is licensed under the license found in the
+// LICENSE file in the root directory of this source tree.
+
 #pragma once
 
 #include <string>
diff --git a/src/cpp/README.md b/src/cpp/README.md
index f85f241..b2dbedd 100644
--- a/src/cpp/README.md
+++ b/src/cpp/README.md
@@ -1,4 +1,4 @@
-# gni - cpp
+# GNI - cpp
 
 We're using [cxx](https://cxx.rs/#cxx--safe-interop-between-rust-and-c) to
 expose cpp bindings.
diff --git a/src/cpp/main.cpp b/src/cpp/main.cpp
index 4488441..70b4f18 100644
--- a/src/cpp/main.cpp
+++ b/src/cpp/main.cpp
@@ -1,3 +1,9 @@
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+// All rights reserved.
+
+// This source code is licensed under the license found in the
+// LICENSE file in the root directory of this source tree.
+
 #include <iostream>
 #include "GNI.h"
 
diff --git a/src/cpp/mod.rs b/src/cpp/mod.rs
index e2e61f2..345bf12 100644
--- a/src/cpp/mod.rs
+++ b/src/cpp/mod.rs
@@ -1,3 +1,9 @@
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+// All rights reserved.
+
+// This source code is licensed under the license found in the
+// LICENSE file in the root directory of this source tree.
+
 #[cxx::bridge]
 mod ffi {
     // Expose functions to cpp
diff --git a/src/go/README.md b/src/go/README.md
index ba3cfe7..00e8c51 100644
--- a/src/go/README.md
+++ b/src/go/README.md
@@ -1,4 +1,4 @@
-# gni - go
+# GNI - go
 
 GNI for Go uses a C library via cgo to bridge Rust functionality into Go.
 
diff --git a/src/go/cgo/cgo.go b/src/go/cgo/cgo.go
index 3728d78..ae12d8b 100644
--- a/src/go/cgo/cgo.go
+++ b/src/go/cgo/cgo.go
@@ -1,3 +1,9 @@
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+// All rights reserved.
+
+// This source code is licensed under the license found in the
+// LICENSE file in the root directory of this source tree.
+
 package cgo
 
 /*
diff --git a/src/go/main.go b/src/go/main.go
index 5ca6bd2..35b6cbe 100644
--- a/src/go/main.go
+++ b/src/go/main.go
@@ -1,3 +1,9 @@
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+// All rights reserved.
+
+// This source code is licensed under the license found in the
+// LICENSE file in the root directory of this source tree.
+
 package main
 
 import (
diff --git a/src/lib.rs b/src/lib.rs
index ca04170..4217045 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,3 +1,9 @@
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+// All rights reserved.
+
+// This source code is licensed under the license found in the
+// LICENSE file in the root directory of this source tree.
+
 use anyhow::{anyhow, Context, Result};
 use std::fs;
 use std::path::Path;
diff --git a/src/main.rs b/src/main.rs
index 412966f..50365a7 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,9 @@
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+// All rights reserved.
+
+// This source code is licensed under the license found in the
+// LICENSE file in the root directory of this source tree.
+
 use anyhow::Context;
 use clap::Parser;
 use std::path::PathBuf;
diff --git a/src/python/README.md b/src/python/README.md
index 032c5ad..81d84a7 100644
--- a/src/python/README.md
+++ b/src/python/README.md
@@ -1,4 +1,4 @@
-# gni - Python pkg
+# GNI - Python pkg
 
 GNI uses [pyo3](https://pyo3.rs/main/getting-started.html?#installation) to
 write a native python library, and
diff --git a/src/python/main.py b/src/python/main.py
index 24bd2f1..de67953 100644
--- a/src/python/main.py
+++ b/src/python/main.py
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
 import gni_lib
 
 def main():
diff --git a/src/python/mod.rs b/src/python/mod.rs
index 87d2c34..54d86f4 100644
--- a/src/python/mod.rs
+++ b/src/python/mod.rs
@@ -1,3 +1,9 @@
+// Copyright (c) Meta Platforms, Inc. and affiliates.
+// All rights reserved.
+
+// This source code is licensed under the license found in the
+// LICENSE file in the root directory of this source tree.
+
 use std::path::PathBuf;
 
 use pyo3::prelude::*;
diff --git a/src/python/python_py_ext.pyi b/src/python/python_py_ext.pyi
index f23e97f..068a44a 100644
--- a/src/python/python_py_ext.pyi
+++ b/src/python/python_py_ext.pyi
@@ -1,3 +1,9 @@
+# Copyright (c) Meta Platforms, Inc. and affiliates.
+# All rights reserved.
+
+# This source code is licensed under the license found in the
+# LICENSE file in the root directory of this source tree.
+
 from typing import Optional
 
 def get_gpu_node_id(cache_file_path: Optional[str]) -> str: ...