diff --git a/Cargo.lock b/Cargo.lock
index dac27f8c..50704ee6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2771,7 +2771,7 @@ dependencies = [
 
 [[package]]
 name = "playdate-sys"
-version = "0.2.14"
+version = "0.2.16"
 dependencies = [
  "arrayvec",
  "playdate-bindgen",
diff --git a/api/sys/Cargo.toml b/api/sys/Cargo.toml
index fab10c6a..d0867b0d 100644
--- a/api/sys/Cargo.toml
+++ b/api/sys/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "playdate-sys"
-version = "0.2.15"
+version = "0.2.16"
 build = "src/build.rs"
 readme = "README.md"
 description = "Low-level Playdate API bindings"
diff --git a/api/sys/src/log.rs b/api/sys/src/log.rs
index 8c9d9796..20466572 100644
--- a/api/sys/src/log.rs
+++ b/api/sys/src/log.rs
@@ -1,3 +1,5 @@
+//! `println` function.
+
 use core::ffi::c_char;
 use alloc::ffi::CString;
 
diff --git a/api/sys/src/sys/allocator.rs b/api/sys/src/sys/allocator.rs
index 5f485188..69ad3e0c 100644
--- a/api/sys/src/sys/allocator.rs
+++ b/api/sys/src/sys/allocator.rs
@@ -1,4 +1,7 @@
 #![cfg(not(test))]
+//! Global Allocator implementation. Depends on `allocator` feature.
+
+
 /*
 With rust-lang/rust#102318 default_alloc_error_handler has been stabilized,
 ie. the default error handler is enabled by default.
diff --git a/api/sys/src/sys/error/mod.rs b/api/sys/src/sys/error/mod.rs
index 6db7ae84..f4124684 100644
--- a/api/sys/src/sys/error/mod.rs
+++ b/api/sys/src/sys/error/mod.rs
@@ -1,3 +1,5 @@
+//! Typed API errors.
+
 use core::any::Any;
 use core::convert::Infallible;
 use core::fmt;
diff --git a/api/sys/src/sys/macros.rs b/api/sys/src/sys/macros.rs
index 0249ebea..73d63c27 100644
--- a/api/sys/src/sys/macros.rs
+++ b/api/sys/src/sys/macros.rs
@@ -1,5 +1,8 @@
+//! Helper macros for API access.
+
+
 #[macro_export]
-/// Print line to stdout, simulator's console or device's output.
+/// Print line to stdout, simulator's console or device's output channel.
 ///
 /// Woks like [`std::println!`](https://doc.rust-lang.org/std/macro.println.html).
 macro_rules! println {
diff --git a/api/sys/src/sys/panic.rs b/api/sys/src/sys/panic.rs
index 98f458dd..b1409d51 100644
--- a/api/sys/src/sys/panic.rs
+++ b/api/sys/src/sys/panic.rs
@@ -1,5 +1,6 @@
 #![cfg(not(test))]
 #![cfg(feature = "panic-handler")]
+//! Global Panic Handler implementation. Depends on `panic-handler` feature.
 
 use core::panic::PanicInfo;
 use core::fmt::Write;
diff --git a/api/sys/src/sys/proc.rs b/api/sys/src/sys/proc.rs
index ec9109e9..b2df5833 100644
--- a/api/sys/src/sys/proc.rs
+++ b/api/sys/src/sys/proc.rs
@@ -1,8 +1,11 @@
+//! Process API. Abort and abort with error message.
+
 /// Executes the undefined instruction (UDF) and causes a CPU-level exception.
 /// See [`core::intrinsics::abort()`]
 pub fn abort() -> ! { core::intrinsics::abort() }
 
 
+/// Stops the program execution with custom system-level error.
 #[track_caller]
 pub fn error<S: AsRef<str>>(text: S) -> ! {
 	if let Some(f) = unsafe { (*(*crate::sys::API).system).error } {