Add prebuilt corral binaries for MacOS on Apple Silicon

.ci-scripts/release/arm64-apple-darwin-release.bash

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+#!/bin/bash
+
+# x86-64-unknown-linux release:
+#
+# - Builds release package
+# - Uploads to Cloudsmith
+#
+# Tools required in the environment that runs this:
+#
+# - bash
+# - cloudsmith-cli
+# - GNU gzip
+# - GNU make
+# - ponyc
+# - GNU tar
+
+set -o errexit
+
+# Pull in shared configuration specific to this repo
+base=$(dirname "$0")
+# shellcheck source=.ci-scripts/release/config.bash
+source "${base}/config.bash"
+
+# Verify ENV is set up correctly
+# We validate all that need to be set in case, in an absolute emergency,
+# we need to run this by hand. Otherwise the GitHub actions environment should
+# provide all of these if properly configured
+if [[ -z "${CLOUDSMITH_API_KEY}" ]]; then
+  echo -e "\e[31mCloudsmith API key needs to be set in CLOUDSMITH_API_KEY."
+  echo -e "Exiting.\e[0m"
+  exit 1
+fi
+
+if [[ -z "${GITHUB_REPOSITORY}" ]]; then
+  echo -e "\e[31mName of this repository needs to be set in GITHUB_REPOSITORY."
+  echo -e "\e[31mShould be in the form OWNER/REPO, for example:"
+  echo -e "\e[31m     ponylang/ponyup"
+  echo -e "\e[31mExiting.\e[0m"
+  exit 1
+fi
+
+if [[ -z "${APPLICATION_NAME}" ]]; then
+  echo -e "\e[31mAPPLICATION_NAME needs to be set."
+  echo -e "\e[31mExiting.\e[0m"
+  exit 1
+fi
+
+if [[ -z "${APPLICATION_SUMMARY}" ]]; then
+  echo -e "\e[31mAPPLICATION_SUMMARY needs to be set."
+  echo -e "\e[31mIt's a short description of the application that will appear in Cloudsmith."
+  echo -e "\e[31mExiting.\e[0m"
+  exit 1
+fi
+
+# no unset variables allowed from here on out
+# allow above so we can display nice error messages for expected unset variables
+set -o nounset
+
+# Compiler target parameters
+ARCH=arm64
+CPU=apple-m1
+
+# Triple construction
+VENDOR=apple
+OS=darwin
+TRIPLE=${ARCH}-${VENDOR}-${OS}
+
+# Build parameters
+BUILD_PREFIX=$(mktemp -d)
+APPLICATION_VERSION=$(cat VERSION)
+BUILD_DIR=${BUILD_PREFIX}/${APPLICATION_VERSION}
+
+# Asset information
+PACKAGE_DIR=$(mktemp -d)
+PACKAGE=${APPLICATION_NAME}-${TRIPLE}
+
+# Cloudsmith configuration
+CLOUDSMITH_VERSION=$(cat VERSION)
+ASSET_OWNER=ponylang
+ASSET_REPO=nightlies
+ASSET_PATH=${ASSET_OWNER}/${ASSET_REPO}
+ASSET_FILE=${PACKAGE_DIR}/${PACKAGE}.tar.gz
+ASSET_SUMMARY="${APPLICATION_SUMMARY}"
+ASSET_DESCRIPTION="https://github.com/${GITHUB_REPOSITORY}"
+
+# Build application installation
+echo -e "\e[34mBuilding ${APPLICATION_NAME}...\e[0m"
+make install prefix="${BUILD_DIR}" arch=${CPU} \
+  version="${APPLICATION_VERSION}"
+
+# Package it all up
+echo -e "\e[34mCreating .tar.gz of ${APPLICATION_NAME}...\e[0m"
+pushd "${BUILD_PREFIX}" || exit 1
+tar -cvzf "${ASSET_FILE}" -- *
+popd || exit 1
+
+# Ship it off to cloudsmith
+echo -e "\e[34mUploading package to cloudsmith...\e[0m"
+cloudsmith push raw --version "${CLOUDSMITH_VERSION}" \
+  --api-key "${CLOUDSMITH_API_KEY}" --summary "${ASSET_SUMMARY}" \
+  --description "${ASSET_DESCRIPTION}" ${ASSET_PATH} "${ASSET_FILE}"

.release-notes/arm64-macos.md

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+## Add prebuilt corral binaries for MacOS on Apple Silicon
+
+We've added corral binaries for MacOS on Apple Silicon that can be installed via `ponyup`.