diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 61ee428b..d056ad00 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -121,7 +121,9 @@ jobs:
             fi
             log="$(mktemp)"
             status=0
-            ./gradlew $TASKS --stacktrace --no-daemon 2>&1 | tee "$log" \
+            # iosSkip: Nucleus's native-image resource task pulls in the iOS tasks of the app's modules,
+            # and the Kotlin plugin refuses to create those on a Linux arm64 host.
+            ./gradlew $TASKS -PiosSkip=true --stacktrace --no-daemon 2>&1 | tee "$log" \
               || status="${PIPESTATUS[0]}"
             if [ "$status" -eq 0 ]; then
               exit 0
diff --git a/wrayth/src/jvmTest/kotlin/WraythStreamRoutingTests.kt b/wrayth/src/jvmTest/kotlin/WraythStreamRoutingTests.kt
index d050d4b9..8a7328a5 100644
--- a/wrayth/src/jvmTest/kotlin/WraythStreamRoutingTests.kt
+++ b/wrayth/src/jvmTest/kotlin/WraythStreamRoutingTests.kt
@@ -159,7 +159,9 @@ class WraythStreamRoutingTests {
             val main = mutableListOf<ClientTextEvent>()
             val streams = mutableListOf<ClientTextEvent>()
             val mainSubscribed = CompletableDeferred<Unit>()
-            scope.launch {
+            // Unconfined, so each collector takes a line inside the client's own send: nothing can
+            // still be buffered when the client disconnects, and scope.cancel below loses nothing.
+            scope.launch(Dispatchers.Unconfined) {
                 client.eventFlow.onSubscription { mainSubscribed.complete(Unit) }.collect { event ->
                     if (event is ClientTextEvent) {
                         synchronized(main) { main += event }
@@ -168,7 +170,7 @@ class WraythStreamRoutingTests {
             }
             // Undispatched, so each is subscribed before the client connects.
             for (stream in watched) {
-                scope.launch(start = CoroutineStart.UNDISPATCHED) {
+                scope.launch(Dispatchers.Unconfined, start = CoroutineStart.UNDISPATCHED) {
                     client.streamLines(stream).collect { event ->
                         synchronized(streams) { streams += event }
                     }