Documents macOS support

.github/workflows/ci.yml

@@ -17,7 +17,10 @@ concurrency:
 jobs:
   runtests:
     name: Continuous Integration
-    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest]
+    runs-on: ${{ matrix.os }}
     permissions:
       contents: read
     steps:

docs/debugging.md

@@ -4,8 +4,15 @@
 
 ### Inspecting USB
 
-To check whether your operating system identifies OpenSK over USB, try `lsusb`
-or `dmesg`.
+To check whether your operating system identifies OpenSK over USB:
+
+On Linux, try `lsusb` or `dmesg`.
+
+On macOS, use the `ioreg` tool:
+
+```sh
+ioreg -p IOUSB
+```
 
 ### Debug console
 

docs/install.md

@@ -2,7 +2,8 @@
 
 ## Installation guide
 
-This document lists required steps to start build your own OpenSK.
+This document lists required steps to start building your own OpenSK.
+OpenSK installation is supported and tested under Linux and macOS.
 
 OpenSK is installed as a native [Wasefire](https://github.com/google/wasefire)
 applet.

libraries/cbor/src/macros.rs

@@ -93,21 +93,17 @@ pub fn destructure_cbor_map_peek_value(
     needle: Value,
 ) -> Option<Value> {
     loop {
-        match it.peek() {
-            None => return None,
-            Some(item) => {
-                let key: &Value = &item.0;
-                match key.cmp(&needle) {
-                    Ordering::Less => {
-                        it.next();
-                    }
-                    Ordering::Equal => {
-                        let value: Value = it.next().unwrap().1;
-                        return Some(value);
-                    }
-                    Ordering::Greater => return None,
-                }
+        let item = it.peek()?;
+        let key: &Value = &item.0;
+        match key.cmp(&needle) {
+            Ordering::Less => {
+                it.next();
+            }
+            Ordering::Equal => {
+                let value: Value = it.next().unwrap().1;
+                return Some(value);
             }
+            Ordering::Greater => return None,
         }
     }
 }

rust-toolchain.toml

@@ -1,4 +1,4 @@
 [toolchain]
-channel = "nightly-2025-11-07"
+channel = "nightly-2026-06-03"
 components = ["clippy", "miri", "rustfmt", "rust-src"]
 targets = ["thumbv7em-none-eabi"]