declare ARCH first

Author: Samueru-sama

build.sh

@@ -2,6 +2,7 @@
 
 set -e
 
+export ARCH="$(uname -m)"
 GHOSTTY_VERSION="1.0.1"
 TMP_DIR="/tmp/ghostty-build"
 APP_DIR="${TMP_DIR}/ghostty.AppDir"
@@ -96,4 +97,4 @@ EOF
 cd "${TMP_DIR}"
 
 # create app image
-ARCH="$(uname -m)" appimagetool -u "${UPINFO}" "${APP_DIR}"
+appimagetool -u "${UPINFO}" "${APP_DIR}"