From d41b2cf6332817d7ab29ee2fd6d0f96aa45c17bb Mon Sep 17 00:00:00 2001
From: Niko Matsakis <niko@alum.mit.edu>
Date: Thu, 29 Jan 2026 14:35:54 -0500
Subject: [PATCH] build: use native runners for ARM builds

Switch to native ARM runners instead of cross-compilation:
- aarch64-linux-musl: use ubuntu-24.04-arm (native ARM runner)
- x86_64-apple-darwin: pin to macos-13 (Intel, can't cross-compile from arm64)

This removes the dependency on musl.cc for downloading cross-compilation
toolchains, which was causing intermittent build failures.

Also adds workflow_dispatch trigger for manual testing.

Co-Authored-By: Claude <claude@anthropic.com>
---
 .github/workflows/release-binaries.yml | 23 ++++++-----------------
 1 file changed, 6 insertions(+), 17 deletions(-)

diff --git a/.github/workflows/release-binaries.yml b/.github/workflows/release-binaries.yml
index 50f0ae96..6fe0bba2 100644
--- a/.github/workflows/release-binaries.yml
+++ b/.github/workflows/release-binaries.yml
@@ -4,6 +4,7 @@ name: Release Binaries
 on:
   release:
     types: [published]
+  workflow_dispatch:
 
 permissions:
   contents: write
@@ -11,12 +12,12 @@ permissions:
 jobs:
   build-binaries:
     name: Build ${{ matrix.target }}
-    if: startsWith(github.ref_name, 'symposium-acp-agent-v')
+    if: github.event_name == 'workflow_dispatch' || startsWith(github.ref_name, 'symposium-acp-agent-v')
     strategy:
       matrix:
         include:
           - target: x86_64-apple-darwin
-            os: macos-latest
+            os: macos-13
             artifact: symposium-darwin-x64
           - target: aarch64-apple-darwin
             os: macos-latest
@@ -25,7 +26,7 @@ jobs:
             os: ubuntu-latest
             artifact: symposium-linux-x64
           - target: aarch64-unknown-linux-musl
-            os: ubuntu-latest
+            os: ubuntu-24.04-arm
             artifact: symposium-linux-arm64
           - target: x86_64-pc-windows-msvc
             os: windows-latest
@@ -45,26 +46,14 @@ jobs:
         with:
           targets: ${{ matrix.target }}
 
-      - name: Install musl tools (x86_64)
-        if: matrix.target == 'x86_64-unknown-linux-musl'
+      - name: Install musl tools
+        if: endsWith(matrix.target, '-musl')
         run: |
           sudo apt-get update
           sudo apt-get install -y musl-tools
 
-      - name: Install musl cross-compilation tools (aarch64)
-        if: matrix.target == 'aarch64-unknown-linux-musl'
-        run: |
-          sudo apt-get update
-          sudo apt-get install -y musl-tools gcc-aarch64-linux-gnu musl-dev
-          # Install aarch64 musl cross toolchain
-          wget -q https://musl.cc/aarch64-linux-musl-cross.tgz
-          tar -xzf aarch64-linux-musl-cross.tgz
-          echo "$PWD/aarch64-linux-musl-cross/bin" >> $GITHUB_PATH
-
       - name: Build
         run: cargo build --release --target ${{ matrix.target }} -p symposium-acp-agent
-        env:
-          CARGO_TARGET_AARCH64_UNKNOWN_LINUX_MUSL_LINKER: aarch64-linux-musl-gcc
 
       - name: Package (Unix)
         if: runner.os != 'Windows'