From a2fa9a58082733634c9dbbc79d3f8e3b670410a2 Mon Sep 17 00:00:00 2001
From: Meghan Denny <meghan@bun.com>
Date: Wed, 26 Nov 2025 20:08:37 -0800
Subject: [PATCH 01/10] ci: unregress tart image gen for macos

---
 .buildkite/ci.mjs    |   8 +++-
 package.json         |   4 ++
 scripts/bootstrap.sh | 103 +++++++++++++++++++++++++++++--------------
 scripts/machine.mjs  |  59 +------------------------
 scripts/tart.mjs     |  22 ++++++---
 scripts/utils.mjs    |  67 ++++++++++++++++++++++++++--
 6 files changed, 160 insertions(+), 103 deletions(-)

diff --git a/.buildkite/ci.mjs b/.buildkite/ci.mjs
index da7c3213d161..a87bbafc5542 100755
--- a/.buildkite/ci.mjs
+++ b/.buildkite/ci.mjs
@@ -103,7 +103,10 @@ function getTargetLabel(target) {
  * @type {Platform[]}
  */
 const buildPlatforms = [
-  { os: "darwin", arch: "aarch64", release: "14" },
+  { os: "darwin", arch: "aarch64", distro: "macos", release: "13" },
+  { os: "darwin", arch: "aarch64", distro: "macos", release: "14" },
+  { os: "darwin", arch: "aarch64", distro: "macos", release: "15" },
+  { os: "darwin", arch: "aarch64", distro: "macos", release: "26" },
   { os: "darwin", arch: "x64", release: "14" },
   { os: "linux", arch: "aarch64", distro: "amazonlinux", release: "2023", features: ["docker"] },
   { os: "linux", arch: "x64", distro: "amazonlinux", release: "2023", features: ["docker"] },
@@ -612,6 +615,7 @@ function getBuildImageStep(platform, options) {
   const { os, arch, distro, release, features } = platform;
   const { publishImages } = options;
   const action = publishImages ? "publish-image" : "create-image";
+  const cloud = os == "darwin" ? "tart" : "aws";
 
   const command = [
     "node",
@@ -621,7 +625,7 @@ function getBuildImageStep(platform, options) {
     `--arch=${arch}`,
     distro && `--distro=${distro}`,
     `--release=${release}`,
-    "--cloud=aws",
+    `--cloud=${cloud}`,
     "--ci",
     "--authorized-org=oven-sh",
   ];
diff --git a/package.json b/package.json
index a8caf066adba..13a189c9903f 100644
--- a/package.json
+++ b/package.json
@@ -92,6 +92,10 @@
     "machine:linux:amazonlinux": "./scripts/machine.mjs ssh --cloud=aws --arch=x64 --instance-type c7i.2xlarge --os=linux --distro=amazonlinux --release=2023",
     "machine:windows:2019": "./scripts/machine.mjs ssh --cloud=aws --arch=x64 --instance-type c7i.2xlarge --os=windows --release=2019",
     "machine:freebsd": "./scripts/machine.mjs ssh --cloud=aws --arch=x64 --instance-type c7i.2xlarge --os=freebsd --release=14.3",
+    "machine:macos:13": "./scripts/machine.mjs ssh --cloud=tart --arch=arm64 --os=darwin --distro=macos --release=13",
+    "machine:macos:14": "./scripts/machine.mjs ssh --cloud=tart --arch=arm64 --os=darwin --distro=macos --release=14",
+    "machine:macos:15": "./scripts/machine.mjs ssh --cloud=tart --arch=arm64 --os=darwin --distro=macos --release=15",
+    "machine:macos:26": "./scripts/machine.mjs ssh --cloud=tart --arch=arm64 --os=darwin --distro=macos --release=26",
     "sync-webkit-source": "bun ./scripts/sync-webkit-source.ts"
   }
 }
diff --git a/scripts/bootstrap.sh b/scripts/bootstrap.sh
index 912e21376015..c3db5bddd561 100755
--- a/scripts/bootstrap.sh
+++ b/scripts/bootstrap.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-# Version: 20
+# Version: 21
 
 # A script that installs the dependencies needed to build and test Bun.
 # This should work on macOS and Linux with a POSIX shell.
@@ -22,15 +22,14 @@ error() {
 	if ! [ "$$" = "$pid" ]; then
 		kill -s TERM "$pid"
 	fi
-	exit 1
+	# Kill the shell. This used to be 'exit 1' but if the command is running inside a
+	# subshell, then only the subshell dies and the script keeps running uninterrupted.
+	kill $$
 }
 
 execute() {
-	local opts=$-
-	set -x
-	"$@"
-	{ local status=$?; set +x "$opts"; } 2> /dev/null
-	if [ "$status" -ne 0 ]; then
+	print "$ $@" >&2
+	if ! "$@"; then
 		error "Command failed: $@"
 	fi
 }
@@ -62,7 +61,7 @@ execute_as_user() {
 }
 
 grant_to_user() {
-	path="$1"
+	local path="$1"
 	if ! [ -f "$path" ] && ! [ -d "$path" ]; then
 		error "Could not find file or directory: \"$path\""
 	fi
@@ -77,7 +76,7 @@ which() {
 }
 
 require() {
-	path="$(which "$1")"
+	local path="$(which "$1")"
 	if ! [ -f "$path" ]; then
 		error "Command \"$1\" is required, but is not installed."
 	fi
@@ -109,7 +108,7 @@ compare_version() {
 }
 
 create_directory() {
-	path="$1"
+	local path="$1"
 	path_dir="$path"
 	while ! [ -d "$path_dir" ]; do
 		path_dir="$(dirname "$path_dir")"
@@ -132,13 +131,13 @@ create_directory() {
 
 create_tmp_directory() {
 	mktemp="$(require mktemp)"
-	path="$(execute "$mktemp" -d)"
+	local path="$(execute "$mktemp" -d)"
 	grant_to_user "$path"
 	print "$path"
 }
 
 create_file() {
-	path="$1"
+	local path="$1"
 	path_dir="$(dirname "$path")"
 	if ! [ -d "$path_dir" ]; then
 		create_directory "$path_dir"
@@ -164,7 +163,7 @@ create_file() {
 }
 
 append_file() {
-	path="$1"
+	local path="$1"
 	if ! [ -f "$path" ]; then
 		create_file "$path"
 	fi
@@ -203,7 +202,7 @@ download_and_verify_file() {
 	file_url="$1"
 	hash="$2"
 
-	path=$(download_file "$file_url")
+	local path=$(download_file "$file_url")
 	execute sh -c 'echo "'"$hash  $path"'" | sha256sum -c -' >/dev/null 2>&1
 
 	print "$path"
@@ -222,7 +221,7 @@ append_to_profile() {
 }
 
 append_to_path() {
-	path="$1"
+	local path="$1"
 	if ! [ -d "$path" ]; then
 		error "Could not find directory: \"$path\""
 	fi
@@ -331,7 +330,7 @@ check_operating_system() {
 	darwin)
 		sw_vers="$(which sw_vers)"
 		if [ -f "$sw_vers" ]; then
-			distro="$("$sw_vers" -productName)"
+			distro="$("$sw_vers" -productName | tr '[:upper:]' '[:lower:]')"
 			release="$("$sw_vers" -productVersion)"
 		fi
 
@@ -372,12 +371,12 @@ check_operating_system() {
 				;;
 			esac
 		fi
-
-		if [ -n "$abi" ]; then
-			print "ABI: $abi $abi_version"
-		fi
 		;;
 	esac
+
+	if [ -n "$abi" ]; then
+		print "ABI: $abi $abi_version"
+	fi
 }
 
 check_inside_docker() {
@@ -456,6 +455,9 @@ check_package_manager() {
 		export ASSUME_ALWAYS_YES=yes
 		package_manager update -f
 		;;
+	brew)
+		package_manager upgrade
+		;;
 	esac
 }
 
@@ -655,11 +657,6 @@ install_packages() {
 	brew)
 		package_manager install \
 			--force \
-			--formula \
-			"$@"
-		package_manager link \
-			--force \
-			--overwrite \
 			"$@"
 		;;
 	apk)
@@ -682,7 +679,7 @@ install_brew() {
 	print "Installing Homebrew..."
 
 	bash="$(require bash)"
-	script=$(download_file "https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh")
+	script=$(download_file "https://github.com/Homebrew/install/raw/main/install.sh")
 	execute_as_user "$bash" -lc "NONINTERACTIVE=1 $script"
 
 	case "$arch" in
@@ -766,6 +763,12 @@ install_common_software() {
 			editors/vim \
 			sysutils/neofetch \
 		;;
+	brew)
+		# https://brew.sh
+		install_packages \
+			coreutils \
+			neofetch \
+		;;
 	esac
 
 	case "$distro" in
@@ -1163,7 +1166,8 @@ install_llvm() {
 		install_packages "llvm-$(llvm_version)-tools"
 		;;
 	brew)
-		install_packages "llvm@$(llvm_version)"
+		install_packages "llvm@$(llvm_version)" "lld@$(llvm_version)"
+		package_manager link "llvm@$(llvm_version)" "lld@$(llvm_version)"
 		;;
 	apk)
 		install_packages \
@@ -1184,7 +1188,13 @@ install_llvm() {
 }
 
 install_gcc() {
-	if ! [ "$os" = "linux" ] || ! [ "$distro" = "ubuntu" ] || [ -z "$gcc_version" ]; then
+	if ! [ "$os" = "linux" ]; then
+		return
+	fi
+	if ! [ "$distro" = "ubuntu" ]; then
+		return
+	fi
+	if [ -z "$gcc_version" ]; then
 		return
 	fi
 
@@ -1260,7 +1270,7 @@ install_sccache() {
 	case "$os" in
 		linux)
 			;;
-		freebsd)
+		freebsd | darwin)
 			cargo install sccache --locked --version 0.12.0
 			return
 			;;
@@ -1307,6 +1317,9 @@ install_rust() {
 		create_directory "$HOME/.cargo/bin"
 		append_to_path "$HOME/.cargo/bin"
 		;;
+	macos)
+		install_packages rust
+		;;
 	*)
 		rust_home="/opt/rust"
 		create_directory "$rust_home"
@@ -1333,7 +1346,7 @@ install_docker() {
 	case "$pm" in
 	brew)
 		if ! [ -d "/Applications/Docker.app" ]; then
-			package_manager install docker --cask
+			install_packages docker docker-compose
 		fi
 		;;
 	pkg)
@@ -1358,6 +1371,10 @@ install_docker() {
 		;;
 	esac
 
+	if [ "$os" = "darwin" ]; then
+		return
+	fi
+
 	systemctl="$(which systemctl)"
 	if [ -f "$systemctl" ]; then
 		execute_sudo "$systemctl" enable docker
@@ -1385,7 +1402,10 @@ macos_sdk_version() {
 }
 
 install_osxcross() {
-	if ! [ "$os" = "linux" ] || ! [ "$osxcross" = "1" ]; then
+	if ! [ "$os" = "linux" ]; then
+		return
+	fi
+	if ! [ "$osxcross" = "1" ]; then
 		return
 	fi
 
@@ -1431,9 +1451,7 @@ install_tailscale() {
 		execute "$sh" "$tailscale_script"
 		;;
 	darwin)
-		install_packages go
-		execute_as_user go install tailscale.com/cmd/tailscale{,d}@latest
-		append_to_path "$home/go/bin"
+		install_packages tailscale
 		;;
 	freebsd)
 		install_packages security/tailscale
@@ -1666,6 +1684,9 @@ install_chromium() {
 		install_packages \
 			www/chromium \
 		;;
+	brew)
+		install_packages --cask google-chrome
+		;;
 	esac
 
 	case "$distro" in
@@ -1705,6 +1726,17 @@ install_age() {
 			;;
 		esac
 		;;
+	darwin)
+		case "$arch" in
+		aarch64)
+			age_arch="arm64"
+			age_hash="cf79875bd5970dc2dac60c87fa50cee1ff1f9a41b0eb273f65e174aff37c367a"
+			;;
+		*)
+			error "Unsupported platform: $os-$arch"
+			;;
+		esac
+		;;
 	*)
 		error "Unsupported platform: $os-$arch"
 		;;
@@ -1753,6 +1785,9 @@ clean_system() {
 	if ! [ "$ci" = "1" ]; then
 		return
 	fi
+	if [ "$os" = "darwin" ]; then
+		return
+	fi
 
 	print "Cleaning system..."
 
diff --git a/scripts/machine.mjs b/scripts/machine.mjs
index e63f4f2a46bc..b27ebd991706 100755
--- a/scripts/machine.mjs
+++ b/scripts/machine.mjs
@@ -31,6 +31,7 @@ import {
   sha256,
   spawn,
   spawnSafe,
+  spawnScp,
   spawnSsh,
   spawnSshSafe,
   spawnSyncSafe,
@@ -943,64 +944,6 @@ async function getGithubOrgSshKeys(organization) {
  * @property {number} [retries]
  */
 
-/**
- * @typedef ScpOptions
- * @property {string} hostname
- * @property {string} source
- * @property {string} destination
- * @property {string[]} [identityPaths]
- * @property {string} [port]
- * @property {string} [username]
- * @property {number} [retries]
- */
-
-/**
- * @param {ScpOptions} options
- * @returns {Promise<void>}
- */
-async function spawnScp(options) {
-  const { hostname, port, username, identityPaths, password, source, destination, retries = 3 } = options;
-  await waitForPort({ hostname, port: port || 22 });
-
-  const command = ["scp", "-o", "StrictHostKeyChecking=no"];
-  command.push("-O"); // use SCP instead of SFTP
-  if (!password) {
-    command.push("-o", "BatchMode=yes");
-  }
-  if (port) {
-    command.push("-P", port);
-  }
-  if (password) {
-    const sshPass = which("sshpass", { required: true });
-    command.unshift(sshPass, "-p", password);
-  } else if (identityPaths) {
-    command.push(...identityPaths.flatMap(path => ["-i", path]));
-  }
-  command.push(resolve(source));
-  if (username) {
-    command.push(`${username}@${hostname}:${destination}`);
-  } else {
-    command.push(`${hostname}:${destination}`);
-  }
-
-  let cause;
-  for (let i = 0; i < retries; i++) {
-    const result = await spawn(command, { stdio: "inherit" });
-    const { exitCode, stderr } = result;
-    if (exitCode === 0) {
-      return;
-    }
-
-    cause = stderr.trim() || undefined;
-    if (/(bad configuration option)|(no such file or directory)/i.test(stderr)) {
-      break;
-    }
-    await new Promise(resolve => setTimeout(resolve, Math.pow(2, i) * 1000));
-  }
-
-  throw new Error(`SCP failed: ${source} -> ${username}@${hostname}:${destination}`, { cause });
-}
-
 /**
  * @param {string} passwordData
  * @param {string} privateKeyPath
diff --git a/scripts/tart.mjs b/scripts/tart.mjs
index e8701b2a48ce..e8d910f146fa 100644
--- a/scripts/tart.mjs
+++ b/scripts/tart.mjs
@@ -1,5 +1,5 @@
 import { inspect } from "node:util";
-import { isPrivileged, spawnSafe, which } from "./utils.mjs";
+import { isPrivileged, spawnSafe, spawnScp, spawnSshSafe, which } from "./utils.mjs";
 
 /**
  * @link https://tart.run/
@@ -48,6 +48,7 @@ export const tart = {
       throw new Error(`Unsupported platform: ${inspect(platform)}`);
     }
     const distros = {
+      "26": "tahoe",
       "15": "sequoia",
       "14": "sonoma",
       "13": "ventura",
@@ -83,14 +84,14 @@ export const tart = {
    * @returns {Promise<TartVm | undefined>}
    */
   async getVm(name) {
+    const { promise, resolve } = Promise.withResolvers();
     const result = await this.spawn(["get", name], {
       json: true,
       throwOnError: error => !/does not exist/i.test(inspect(error)),
     });
-    return {
-      Name: name,
-      ...result,
-    };
+    if (!result) resolve(undefined);
+    else resolve({ Name: name, ...result });
+    return promise;
   },
 
   /**
@@ -265,6 +266,15 @@ export const tart = {
       await spawnRdp({ ...connectOptions });
     };
 
+    const snapshot = async tag => {
+      // https://tart.run/integrations/vm-management/#working-with-a-remote-oci-container-registry
+      // https://tart.run/integrations/vm-management/#pushing-a-local-image
+      // https://tart.run/integrations/buildkite/
+      // tart push ${name} ghcr.io/oven-sh/macos-${major_version}-tart-base:${tag}
+      // TODO: push to ghcr and return that full remote_image_name:tag
+      return tag;
+    };
+
     const close = async () => {
       await this.deleteVm(name);
     };
@@ -274,8 +284,10 @@ export const tart = {
       id: name,
       spawn: exec,
       spawnSafe: execSafe,
+      rdp,
       attach,
       upload,
+      snapshot,
       close,
       [Symbol.asyncDispose]: close,
     };
diff --git a/scripts/utils.mjs b/scripts/utils.mjs
index b2cec8d20963..c5f7aed09a3f 100755
--- a/scripts/utils.mjs
+++ b/scripts/utils.mjs
@@ -124,6 +124,7 @@ export function setEnv(name, value) {
  * @property {(error: Error) => boolean} [retryOnError]
  * @property {string} [stdin]
  * @property {boolean} [privileged]
+ * @property {boolean} [detached]
  */
 
 /**
@@ -2186,7 +2187,7 @@ export async function getCloudMetadata(name, cloud) {
     throw new Error(`Unsupported cloud: ${inspect(cloud)}`);
   }
 
-  const { error, body } = await curl(url, { headers, retries: 10 });
+  const { error, body } = await curl(url, { headers, retries: 3 });
   if (error) {
     console.warn("Failed to get cloud metadata:", error);
     return;
@@ -2237,7 +2238,7 @@ export async function getBuildMetadata(name) {
  * @returns {Promise<Error | undefined>}
  */
 export async function waitForPort(options) {
-  const { hostname, port, retries = 10 } = options;
+  const { hostname, port, retries = 3 } = options;
   console.log("Connecting...", `${hostname}:${port}`);
 
   let cause;
@@ -2247,7 +2248,7 @@ export async function waitForPort(options) {
     }
 
     const connected = new Promise((resolve, reject) => {
-      const socket = connect({ host: hostname, port });
+      const socket = connect({ host: hostname, port, timeout: 10_000 });
       socket.on("connect", () => {
         socket.destroy();
         console.log("Connected:", `${hostname}:${port}`);
@@ -3025,7 +3026,7 @@ export async function spawnSshSafe(options, spawnOptions = {}) {
  * @returns {Promise<import("./utils.mjs").SpawnResult>}
  */
 export async function spawnSsh(options, spawnOptions = {}) {
-  const { hostname, port, username, identityPaths, password, retries = 10, command: spawnCommand } = options;
+  const { hostname, port, username, identityPaths, password, retries = 3, command: spawnCommand } = options;
 
   if (!hostname.includes("@")) {
     await waitForPort({
@@ -3114,3 +3115,61 @@ export async function setupUserData(machine, options) {
     rm(tmpFile);
   }
 }
+
+/**
+ * @typedef ScpOptions
+ * @property {string} hostname
+ * @property {string} source
+ * @property {string} destination
+ * @property {string[]} [identityPaths]
+ * @property {string} [port]
+ * @property {string} [username]
+ * @property {number} [retries]
+ */
+
+/**
+ * @param {ScpOptions} options
+ * @returns {Promise<void>}
+ */
+export async function spawnScp(options) {
+  const { hostname, port, username, identityPaths, password, source, destination, retries = 3 } = options;
+  await waitForPort({ hostname, port: port || 22 });
+
+  const command = ["scp", "-o", "StrictHostKeyChecking=no"];
+  command.push("-O"); // use SCP instead of SFTP
+  if (!password) {
+    command.push("-o", "BatchMode=yes");
+  }
+  if (port) {
+    command.push("-P", port);
+  }
+  if (password) {
+    const sshPass = which("sshpass", { required: true });
+    command.unshift(sshPass, "-p", password);
+  } else if (identityPaths) {
+    command.push(...identityPaths.flatMap(path => ["-i", path]));
+  }
+  command.push(resolve(source));
+  if (username) {
+    command.push(`${username}@${hostname}:${destination}`);
+  } else {
+    command.push(`${hostname}:${destination}`);
+  }
+
+  let cause;
+  for (let i = 0; i < retries; i++) {
+    const result = await spawn(command, { stdio: "inherit" });
+    const { exitCode, stderr } = result;
+    if (exitCode === 0) {
+      return;
+    }
+
+    cause = stderr.trim() || undefined;
+    if (/(bad configuration option)|(no such file or directory)/i.test(stderr)) {
+      break;
+    }
+    await new Promise(resolve => setTimeout(resolve, Math.pow(2, i) * 1000));
+  }
+
+  throw new Error(`SCP failed: ${source} -> ${username}@${hostname}:${destination}`, { cause });
+}

From 4f89afd183fa973df449f1b5a079ec8a12a61be8 Mon Sep 17 00:00:00 2001
From: Meghan Denny <meghan@bun.com>
Date: Wed, 26 Nov 2025 20:10:49 -0800
Subject: [PATCH 02/10] [build images]


From 873d56b40d9ca33244d0fcbeb1d62c70692429ca Mon Sep 17 00:00:00 2001
From: "autofix-ci[bot]" <114827586+autofix-ci[bot]@users.noreply.github.com>
Date: Thu, 27 Nov 2025 04:12:31 +0000
Subject: [PATCH 03/10] [autofix.ci] apply automated fixes

---
 scripts/machine.mjs | 1 -
 1 file changed, 1 deletion(-)

diff --git a/scripts/machine.mjs b/scripts/machine.mjs
index b27ebd991706..78e460c91e30 100755
--- a/scripts/machine.mjs
+++ b/scripts/machine.mjs
@@ -37,7 +37,6 @@ import {
   spawnSyncSafe,
   startGroup,
   tmpdir,
-  waitForPort,
   which,
   writeFile,
 } from "./utils.mjs";

From eb0bafaacad54154262eb31ff83da69af8132458 Mon Sep 17 00:00:00 2001
From: Meghan Denny <meghan@bun.com>
Date: Wed, 26 Nov 2025 20:13:11 -0800
Subject: [PATCH 04/10] [build images]

---
 .buildkite/ci.mjs | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/.buildkite/ci.mjs b/.buildkite/ci.mjs
index a87bbafc5542..b0ffe3c10386 100755
--- a/.buildkite/ci.mjs
+++ b/.buildkite/ci.mjs
@@ -1076,9 +1076,7 @@ async function getPipeline(options = {}) {
   const { buildPlatforms = [], testPlatforms = [], buildImages, publishImages } = options;
   const imagePlatforms = new Map(
     buildImages || publishImages
-      ? [...buildPlatforms, ...testPlatforms]
-          .filter(({ os }) => os !== "darwin")
-          .map(platform => [getImageKey(platform), platform])
+      ? [...buildPlatforms, ...testPlatforms].map(platform => [getImageKey(platform), platform])
       : [],
   );
 

From 9a242d10a2fb440825cb718451917ded91cac52b Mon Sep 17 00:00:00 2001
From: Meghan Denny <meghan@bun.com>
Date: Wed, 26 Nov 2025 20:20:35 -0800
Subject: [PATCH 05/10] [build images]

---
 .buildkite/ci.mjs | 12 +++++++-----
 scripts/tart.mjs  | 14 +++++++-------
 2 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/.buildkite/ci.mjs b/.buildkite/ci.mjs
index b0ffe3c10386..5f7d3b28e5f0 100755
--- a/.buildkite/ci.mjs
+++ b/.buildkite/ci.mjs
@@ -103,10 +103,10 @@ function getTargetLabel(target) {
  * @type {Platform[]}
  */
 const buildPlatforms = [
-  { os: "darwin", arch: "aarch64", distro: "macos", release: "13" },
-  { os: "darwin", arch: "aarch64", distro: "macos", release: "14" },
-  { os: "darwin", arch: "aarch64", distro: "macos", release: "15" },
-  { os: "darwin", arch: "aarch64", distro: "macos", release: "26" },
+  { os: "darwin", arch: "aarch64", release: "13" },
+  { os: "darwin", arch: "aarch64", release: "14" },
+  { os: "darwin", arch: "aarch64", release: "15" },
+  { os: "darwin", arch: "aarch64", release: "26" },
   { os: "darwin", arch: "x64", release: "14" },
   { os: "linux", arch: "aarch64", distro: "amazonlinux", release: "2023", features: ["docker"] },
   { os: "linux", arch: "x64", distro: "amazonlinux", release: "2023", features: ["docker"] },
@@ -1076,7 +1076,9 @@ async function getPipeline(options = {}) {
   const { buildPlatforms = [], testPlatforms = [], buildImages, publishImages } = options;
   const imagePlatforms = new Map(
     buildImages || publishImages
-      ? [...buildPlatforms, ...testPlatforms].map(platform => [getImageKey(platform), platform])
+      ? [...buildPlatforms, ...testPlatforms]
+          .filter(({ os, arch }) => !(os === "darwin" && arch === "x64"))
+          .map(platform => [getImageKey(platform), platform])
       : [],
   );
 
diff --git a/scripts/tart.mjs b/scripts/tart.mjs
index e8d910f146fa..48d33574d977 100644
--- a/scripts/tart.mjs
+++ b/scripts/tart.mjs
@@ -84,14 +84,14 @@ export const tart = {
    * @returns {Promise<TartVm | undefined>}
    */
   async getVm(name) {
-    const { promise, resolve } = Promise.withResolvers();
-    const result = await this.spawn(["get", name], {
-      json: true,
-      throwOnError: error => !/does not exist/i.test(inspect(error)),
+    return new Promise(async resolve => {
+      const result = await this.spawn(["get", name], {
+        json: true,
+        throwOnError: error => !/does not exist/i.test(inspect(error)),
+      });
+      if (!result) resolve(undefined);
+      else resolve({ Name: name, ...result });
     });
-    if (!result) resolve(undefined);
-    else resolve({ Name: name, ...result });
-    return promise;
   },
 
   /**

From caac13dd214bd073ca8dd50622f2ca83f6d7884d Mon Sep 17 00:00:00 2001
From: Meghan Denny <meghan@bun.com>
Date: Wed, 26 Nov 2025 20:40:11 -0800
Subject: [PATCH 06/10] [build images]

---
 .buildkite/ci.mjs   | 4 +++-
 scripts/machine.mjs | 6 ++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/.buildkite/ci.mjs b/.buildkite/ci.mjs
index 5f7d3b28e5f0..db55cd261661 100755
--- a/.buildkite/ci.mjs
+++ b/.buildkite/ci.mjs
@@ -664,7 +664,9 @@ function getReleaseStep(buildPlatforms, options) {
     agents: {
       queue: "test-darwin",
     },
-    depends_on: buildPlatforms.filter(p => p.os !== "freebsd").map(platform => `${getTargetKey(platform)}-build-bun`),
+    depends_on: buildPlatforms
+      .filter(p => !(p.os === "freebsd" || p.os === "darwin"))
+      .map(platform => `${getTargetKey(platform)}-build-bun`),
     env: {
       CANARY: revision,
     },
diff --git a/scripts/machine.mjs b/scripts/machine.mjs
index 78e460c91e30..4cbb476c9ae9 100755
--- a/scripts/machine.mjs
+++ b/scripts/machine.mjs
@@ -18,6 +18,7 @@ import {
   getSecret,
   getUsernameForDistro,
   homedir,
+  isBuildkite,
   isCI,
   isMacOS,
   isWindows,
@@ -1218,6 +1219,11 @@ async function main() {
     }
   }
 
+  if (isBuildkite && os === "darwin") {
+    // they don't have it preinstalled in the hosted image
+    await spawnSafe($`apt install tart sshpass`);
+  }
+
   /** @type {Machine} */
   const machine = await startGroup("Creating machine...", async () => {
     console.log("Creating machine:");

From 6d73e8ed59852d66cc57c76954b0b51db696f19e Mon Sep 17 00:00:00 2001
From: Meghan Denny <meghan@bun.com>
Date: Wed, 26 Nov 2025 20:44:20 -0800
Subject: [PATCH 07/10] [build images]

---
 .buildkite/ci.mjs   | 2 +-
 scripts/machine.mjs | 5 -----
 2 files changed, 1 insertion(+), 6 deletions(-)

diff --git a/.buildkite/ci.mjs b/.buildkite/ci.mjs
index db55cd261661..8732814bd806 100755
--- a/.buildkite/ci.mjs
+++ b/.buildkite/ci.mjs
@@ -1079,7 +1079,7 @@ async function getPipeline(options = {}) {
   const imagePlatforms = new Map(
     buildImages || publishImages
       ? [...buildPlatforms, ...testPlatforms]
-          .filter(({ os, arch }) => !(os === "darwin" && arch === "x64"))
+          .filter(({ os, arch }) => !(os === "darwin"))
           .map(platform => [getImageKey(platform), platform])
       : [],
   );
diff --git a/scripts/machine.mjs b/scripts/machine.mjs
index 4cbb476c9ae9..49c010ad8820 100755
--- a/scripts/machine.mjs
+++ b/scripts/machine.mjs
@@ -1219,11 +1219,6 @@ async function main() {
     }
   }
 
-  if (isBuildkite && os === "darwin") {
-    // they don't have it preinstalled in the hosted image
-    await spawnSafe($`apt install tart sshpass`);
-  }
-
   /** @type {Machine} */
   const machine = await startGroup("Creating machine...", async () => {
     console.log("Creating machine:");

From 270c23fd87daa804af9e9b7d8e177e4d2a4d50fa Mon Sep 17 00:00:00 2001
From: "autofix-ci[bot]" <114827586+autofix-ci[bot]@users.noreply.github.com>
Date: Thu, 27 Nov 2025 04:46:01 +0000
Subject: [PATCH 08/10] [autofix.ci] apply automated fixes

---
 scripts/machine.mjs | 1 -
 1 file changed, 1 deletion(-)

diff --git a/scripts/machine.mjs b/scripts/machine.mjs
index 49c010ad8820..78e460c91e30 100755
--- a/scripts/machine.mjs
+++ b/scripts/machine.mjs
@@ -18,7 +18,6 @@ import {
   getSecret,
   getUsernameForDistro,
   homedir,
-  isBuildkite,
   isCI,
   isMacOS,
   isWindows,

From 06d2ef5668b7846951aa5e20e0cb6929ffae4874 Mon Sep 17 00:00:00 2001
From: Meghan Denny <meghan@bun.com>
Date: Wed, 26 Nov 2025 20:46:56 -0800
Subject: [PATCH 09/10] [build images]


From 85c93db9e8b1eda5b2ca89b5e16c4de87164c5ab Mon Sep 17 00:00:00 2001
From: Meghan Denny <meghan@bun.com>
Date: Wed, 26 Nov 2025 22:00:29 -0800
Subject: [PATCH 10/10] [skip ci]

---
 scripts/bootstrap.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/bootstrap.sh b/scripts/bootstrap.sh
index c3db5bddd561..4b596d663886 100755
--- a/scripts/bootstrap.sh
+++ b/scripts/bootstrap.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-# Version: 21
+# Version: 20
 
 # A script that installs the dependencies needed to build and test Bun.
 # This should work on macOS and Linux with a POSIX shell.