In progress
2026
CannyCart
A shared shopping-list app for web and mobile, built on one Amplify Gen 2 backend.
Next.js
Expo
TypeScript
AWS Amplify Gen 2
+5
Software engineer
Ibukun Demehin
Most of my work lives in the seam between a serverless backend and the app sitting on top of it. I build both sides — and write down the part the docs leave out.
Selected work
All projectsOpen source
2026
claude-skills
An open-source library of distilled, reusable engineering practice for AWS Amplify, Next.js and Expo.
AWS Amplify Gen 2
Next.js
Expo
TypeScript
+1
Live
2025
Form Builder
A from-scratch drag-and-drop form engine — authoring, schema storage and a runtime renderer.
Next.js
TypeScript
dnd-kit
zod
+2
Latest writing
All posts7 min read
The polish pass: smart add, pull-to-refresh, sticky headers, tighter archive
Six fixes too small to blog about, shipped as one deliberate pass: a 12-line parser instead of an LLM, merge-not-duplicate, bulk clear, brand pull-to-refresh, sticky headers that Android never had, and a bug cured by deleting a component.
reactnative
mobile
ux
buildinpublic
7 min read
A template is just a list with a flag: reusable shopping lists
Reusable 'Weekly essentials' lists shipped with one new schema field and zero new tables. The design fork (new model vs status vs flag), the copy-both-ways helper, and the three ripple effects one boolean forced.
reactnative
aws
architecture
buildinpublic
6 min read
You can't GROUP BY in DynamoDB — so the client does the counting
The feature was one line of SQL: my most-added grocery items, ranked. DynamoDB doesn't have the clause. Here's the client-side aggregation that shipped instead — with explicit scan budgets, honest counts, and a documented exit ramp.
aws
dynamodb
reactnative
buildinpublic
Occasional notes, no noise
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