I wrote some Shopify Apps[1] (to scratch a personal need) that lets you run real Ruby scripts on your Shopify site.

Working on a robot pincking and packing system to fulfill e-commerce orders[2][3][4].

[1] https://apps.shopify.com/cockatoo

[2] https://schappi.com/experiments/user-servo-to-move-product-o...

[3] https://schappi.com/experiments/robtic-shelf/

[4] https://schappi.com/experiments/finger-manipulator-mk3/