diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 754e0ee85..024ee7fb9 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -302,7 +302,7 @@ jobs:
         uses: jakejarvis/s3-sync-action@v0.5.1
         env:
           AWS_S3_ENDPOINT: ${{ secrets.CF_ENDPOINT }}
-          AWS_S3_BUCKET: ${{ secrets.CF_BUCKET }}
+          AWS_S3_BUCKET: ${{ secrets.CF_BUCKET_PREVIEW }}
           AWS_ACCESS_KEY_ID: ${{ secrets.CF_ACCESS_KEY_ID }}
           AWS_SECRET_ACCESS_KEY: ${{ secrets.CF_SECRET_ACCESS_KEY }}
           AWS_REGION: 'auto'
diff --git a/plugin/source/dynamix.unraid.net/pkg_build.sh b/plugin/source/dynamix.unraid.net/pkg_build.sh
new file mode 100755
index 000000000..6da7f5c57
--- /dev/null
+++ b/plugin/source/dynamix.unraid.net/pkg_build.sh
@@ -0,0 +1,79 @@
+#!/bin/bash
+# passes `shellcheck` and `shfmt -i 2`
+
+[[ "$1" == "s" ]] && env=staging
+[[ "$1" == "p" ]] && env=production
+[[ -z "${env}" ]] && echo "usage: [s|p]" && exit 1
+
+DIR=$(dirname "$(readlink -f "${BASH_SOURCE[0]}")")
+MAINDIR=$(dirname "$(dirname "${DIR}")")
+tmpdir=/tmp/tmp.$((RANDOM * 19318203981230 + 40))
+pluginSrc=$(basename "${DIR}")
+plugin="${pluginSrc}"
+[[ "${env}" == "staging" ]] && plugin="${plugin}.staging" && cp "${MAINDIR}/plugins/${pluginSrc}.plg" "${MAINDIR}/plugins/${plugin}.plg"
+version=$(date +"%Y.%m.%d.%H%M")
+plgfile="${MAINDIR}/plugins/${plugin}.plg"
+txzfile="${MAINDIR}/archive/${plugin}-${version}.txz"
+
+# create txz package
+mkdir -p "$(dirname "${txzfile}")"
+mkdir -p "${tmpdir}"
+# shellcheck disable=SC2046
+cp --parents -f $(find . -type f ! \( -iname ".DS_Store" -o -iname "pkg_build.sh" -o -iname "makepkg" -o -iname "explodepkg" -o -iname "sftp-config.json" \)) "${tmpdir}/"
+cd "${tmpdir}" || exit 1
+if [[ "${env}" == "staging" ]]; then
+  # create README.md for staging plugin
+  mv "${tmpdir}/usr/local/emhttp/plugins/dynamix.unraid.net" "${tmpdir}/usr/local/emhttp/plugins/dynamix.unraid.net.staging"
+  sed -i "s@\*\*Unraid Connect\*\*@\*\*Unraid Connect \(staging\)\*\*@" "${tmpdir}/usr/local/emhttp/plugins/dynamix.unraid.net.staging/README.md"
+  sed -i "s@dynamix.unraid.net.plg@dynamix.unraid.net.staging.plg@" "${tmpdir}/usr/local/emhttp/plugins/dynamix.my.servers/Connect.page"
+fi
+chmod 0755 -R .
+sudo chown root:root -R .
+sudo "${MAINDIR}/source/dynamix.unraid.net/makepkg" -l y -c y "${txzfile}"
+sudo rm -rf "${tmpdir}"
+md5=$(md5sum "${txzfile}" | cut -f 1 -d ' ')
+echo "MD5: ${md5}"
+sha256=$(sha256sum "${txzfile}" | cut -f 1 -d ' ')
+echo "SHA256: ${sha256}"
+
+# test txz package
+mkdir -p "${tmpdir}"
+cd "${tmpdir}" || exit 1
+RET=$(sudo "${MAINDIR}/source/dynamix.unraid.net/explodepkg" "${txzfile}" 2>&1 >/dev/null)
+sudo rm -rf "${tmpdir}"
+[[ "${RET}" != "" ]] && echo "Error: invalid txz package created: ${txzfile}" && exit 1
+cd "${DIR}" || exit 1
+
+# define vars for plg
+pluginURL="https://unraid-dl.sfo2.cdn.digitaloceanspaces.com/unraid-api/\&name;.plg"
+downloadserver="https://unraid-dl.sfo2.cdn.digitaloceanspaces.com"
+js_dl_server="https://registration.unraid.net"
+if [[ "${env}" == "staging" ]]; then
+  pluginURL="https://preview.dl.unraid.net/unraid-api/\&name;.plg"
+  downloadserver="https://preview.dl.unraid.net"
+  js_dl_server="https://registration-dev.unraid.net"
+fi
+
+# update plg file
+sed -i -E "s#(ENTITY name\s*)\".*\"#\1\"${plugin}\"#g" "${plgfile}"
+sed -i -E "s#(ENTITY env\s*)\".*\"#\1\"${env}\"#g" "${plgfile}"
+sed -i -E "s#(ENTITY version\s*)\".*\"#\1\"${version}\"#g" "${plgfile}"
+sed -i -E "s#(ENTITY pluginURL\s*)\".*\"#\1\"${pluginURL}\"#g" "${plgfile}"
+sed -i -E "s#(ENTITY MD5\s*)\".*\"#\1\"${md5}\"#g" "${plgfile}"
+sed -i -E "s#(ENTITY SHA256\s*)\".*\"#\1\"${sha256}\"#g" "${plgfile}"
+sed -i -E "s#(ENTITY downloadserver\s*)\".*\"#\1\"${downloadserver}\"#g" "${plgfile}"
+sed -i -E "s#(ENTITY js_dl_server\s*)\".*\"#\1\"${js_dl_server}\"#g" "${plgfile}"
+
+# set from environment vars
+sed -i -E "s#(ENTITY API_version\s*)\".*\"#\1\"${API_VERSION}\"#g" "${plgfile}"
+sed -i -E "s#(ENTITY API_MD5\s*)\".*\"#\1\"${API_MD5}\"#g" "${plgfile}"
+sed -i -E "s#(ENTITY API_SHA256\s*)\".*\"#\1\"${API_SHA256}\"#g" "${plgfile}"
+
+# add changelog for major versions
+# sed -i "/<CHANGES>/a ###${version}\n" ${plgfile}
+
+echo
+grep -E "ENTITY (name|pluginURL|env|version|MD5|SHA256|node_api_version)" "${plgfile}"
+echo
+echo "${env} plugin: ${plgfile}"
+echo "${env} txz:    ${txzfile}"