Shopify Auto-Archive Sold Out

I need a Shopify expert to tweak our existing automation system. Here's what's crucial:

- **Modification**: Adjust the current auto-system built on Shopify's Liquid.
- **Functionality**: Ensure immediate archiving of products post sale of the last item.
- **Automation**: This should happen without manual intervention.

Ideal Candidate Should Have:
- Proficiency in Shopify's Liquid code
- Experience with Shopify automation
- An understanding of e-commerce inventory management

Your input will help maintain a dynamic, up-to-date storefront. Thank you for considering this project!