[add] initial scaffolding.

Author: vmarcella

crates/lambda-rs-platform/Cargo.toml

@@ -48,3 +48,11 @@ wgpu-with-vulkan = ["wgpu"]
 wgpu-with-metal = ["wgpu", "wgpu/metal"]
 wgpu-with-dx12 = ["wgpu", "wgpu/dx12"]
 wgpu-with-gl = ["wgpu", "wgpu/webgl"]
+
+# ---------------------------------- AUDIO ------------------------------------
+
+# Umbrella features (disabled by default)
+audio = ["audio-device"]
+
+# Granular feature flags (disabled by default)
+audio-device = []

crates/lambda-rs-platform/src/cpal/device.rs

@@ -0,0 +1 @@
+#![allow(clippy::needless_return)]

crates/lambda-rs-platform/src/cpal/mod.rs

@@ -0,0 +1,3 @@
+#![allow(clippy::needless_return)]
+
+pub mod device;

crates/lambda-rs-platform/src/lib.rs

@@ -15,3 +15,6 @@ pub mod shader;
 #[cfg(feature = "wgpu")]
 pub mod wgpu;
 pub mod winit;
+
+#[cfg(feature = "audio-device")]
+pub mod cpal;

crates/lambda-rs/Cargo.toml

@@ -32,6 +32,14 @@ with-wgpu-metal=["with-wgpu", "lambda-rs-platform/wgpu-with-metal"]
 with-wgpu-dx12=["with-wgpu", "lambda-rs-platform/wgpu-with-dx12"]
 with-wgpu-gl=["with-wgpu", "lambda-rs-platform/wgpu-with-gl"]
 
+# ---------------------------------- AUDIO ------------------------------------
+
+# Umbrella features (disabled by default)
+audio = ["audio-output-device"]
+
+# Granular feature flags (disabled by default)
+audio-output-device = []
+
 # ------------------------------ RENDER VALIDATION -----------------------------
 # Granular, opt-in validation flags for release builds. Debug builds enable
 # all validations unconditionally via `debug_assertions`.

crates/lambda-rs/src/audio.rs

@@ -0,0 +1 @@
+#![allow(clippy::needless_return)]

crates/lambda-rs/src/lib.rs

@@ -20,6 +20,9 @@ pub mod runtime;
 pub mod runtimes;
 pub mod util;
 
+#[cfg(feature = "audio-output-device")]
+pub mod audio;
+
 /// The logging module provides a simple logging interface for Lambda
 /// applications.
 pub use logging;