From d1ac52da2c71e6ba67fc4796d4dcc3d3c1657c10 Mon Sep 17 00:00:00 2001
From: 190n <ben@bun.sh>
Date: Tue, 20 May 2025 12:41:06 -0700
Subject: [PATCH] ci: use ARM EC2 instances for build-zig (#19781)

---
 .buildkite/ci.mjs | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/.buildkite/ci.mjs b/.buildkite/ci.mjs
index c0ac6b0673..8aa1460057 100755
--- a/.buildkite/ci.mjs
+++ b/.buildkite/ci.mjs
@@ -331,16 +331,14 @@ function getZigAgent(platform, options) {
   return getEc2Agent(
     {
       os: "linux",
-      arch: "x64",
+      arch: "aarch64",
       abi: "musl",
       distro: "alpine",
       release: "3.21",
     },
     options,
     {
-      instanceType: "c7i.2xlarge",
-      cpuCount: 4,
-      threadsPerCore: 1,
+      instanceType: "r8g.large",
     },
   );
 }