Slack app to automatically archive Slack channels. For more context, see the blog post.
HM_SLACK_BEARER_TOKEN="xoxb-not-a-real-token" \
HM_SLACK_SIGNING_SECRET="abcdefgnotarealsecret" \
HM_CHANNEL_REGEX='^tmp-.*' \
HM_LAST_MESSAGE_MAX_AGE='30d' \
HM_ARCHIVE_CHANNELS='true' \
HM_SEND_MESSAGE='true' \
node index.jschannels:historychannels:joinchannels:managechannels:readchat:write