Feeef engineering
Blog
I work on the storefront at Feeef. These are the notes I write when I get tired of explaining the same thing in a review.
October 16, 2026
Eight thousand stores, one process
How we measured Helium's origin performance, removed repeated render work, and kept the memory story honest.
Read the essayOctober 16, 2026 · helium · architecture · templates
Meet Helium, the new home for Feeef themes
A smaller storefront runtime, the same editable theme document, and a clearer boundary between merchant code and the platform.
October 16, 2026 · helium · templates · performance
Give every block a browser budget
Why Helium keeps custom components interactive by default, and how theme authors can remove browser work with confidence.
October 4, 2026 · shipping · parcels · orders
Sending 500 orders
The courier takes 50 or 100 parcels per call. A desk selection of 500 is one Feeef request, then chunks with a short rest between them.
October 2, 2026 · shipping · parcels · geo
Shipping is a parcel now
Carrier accounts, fee cards, quotes, stop desks, labels, and what happens when the commune is not covered.
October 1, 2026 · templates · design-system · react · ssr · cli · build-in-public
Building Cobalt: from a blank template to a real Feeef storefront
My working notes on designing, debugging, testing, and publishing a Feeef template—with a real demo store, screenshots, and a live playground.
October 1, 2026 · templates · cli
Develop on a draft, publish when you mean it
The two commands I actually use. One shows the theme to me. The other is how it reaches a customer, and only when I pass --apply.
October 1, 2026 · templates · cli
Customers never see your draft
feeef template dev writes a second document on the store. I lost an hour once because my laptop and the shop were talking to different APIs.
October 1, 2026 · templates · architecture · design-system · react · ssr · cli
Introducing the Feeef Template Design System
Why themes are documents, how JSON and React meet, and what that means for merchants, developers, and the storefront.
September 30, 2026 · finance · inventory · cod
How Feeef finance moves money
Wallets, courier cash-in, order collection, payouts, and the purchase that becomes both stock and a bill.
September 28, 2026 · inventory · orders · api
The inventory engine: one quantity the order can trust
How Feeef stock works now — scoped SKUs, reservations, movements, and why the number on the product is no longer the stock.
September 24, 2026 · templates · order-form
Stop shipping one order form
I built a checkout I was proud of, in one file. Merchants could not move a field. That is the whole story.
September 18, 2026 · templates · architecture
A theme is a document, not a deploy
I keep explaining this to people who just want a deploy button. A Feeef theme is the JSON the shop already knows how to render.