Building CannyCart Series' Articles

Cover image for I'm building a shopping app you talk to — here's the stack

Ibukun Demehin

Jul 20

I'm building a shopping app you talk to — here's the stack

#buildinpublic #aws #expo #react

4 min read

Cover image for One backend, three environments: the 4 KiB limit that redesigned my EAS setup

Ibukun Demehin

Jul 20

One backend, three environments: the 4 KiB limit that redesigned my EAS setup

#buildinpublic #aws #expo #reactnative

7 min read

Cover image for Every icon vanished: a Metro debugging story (featuring a babel package from 2017)

Ibukun Demehin

Jul 20

Every icon vanished: a Metro debugging story (featuring a babel package from 2017)

#reactnative #expo #debugging #buildinpublic

3

5 min read

Cover image for My main branch wouldn't deploy: CloudFormation forensics on Amplify Gen 2

Ibukun Demehin

Jul 20

My main branch wouldn't deploy: CloudFormation forensics on Amplify Gen 2

#aws #amplify #cloudformation #debugging

6 min read

Cover image for "Milk, and a dozen eggs": a voice-to-Claude shopping list that never trusts the AI

Ibukun Demehin

Jul 20

"Milk, and a dozen eggs": a voice-to-Claude shopping list that never trusts the AI

#expo #react #ai #buildinpublic

6 min read

Cover image for Light, dark, and system themes in Expo + NativeWind — the whole app, from one setting

Ibukun Demehin

Jul 20

Light, dark, and system themes in Expo + NativeWind — the whole app, from one setting

#reactnative #expo #nativewind #tutorial

6 min read

Cover image for Working offline in the cereal aisle: TanStack Query offline on Amplify

Ibukun Demehin

Jul 21

Working offline in the cereal aisle: TanStack Query offline on Amplify

#reactnative #expo #reactquery #aws

6 min read

Cover image for I deleted the drag-and-drop library and shipped four buttons instead

Ibukun Demehin

Jul 21

I deleted the drag-and-drop library and shipped four buttons instead

#reactnative #expo #android #buildinpublic

5 min read

Cover image for Whose categories are these? Making an LLM's throwaway labels feel like real things

Ibukun Demehin

Jul 21

Whose categories are these? Making an LLM's throwaway labels feel like real things

#reactnative #expo #ai #database

6 min read

Cover image for You can't GROUP BY in DynamoDB — so the client does the counting

Ibukun Demehin

Jul 21

You can't GROUP BY in DynamoDB — so the client does the counting

#aws #dynamodb #reactnative #buildinpublic

6 min read

Cover image for A template is just a list with a flag: reusable shopping lists

Ibukun Demehin

Jul 22

A template is just a list with a flag: reusable shopping lists

#reactnative #aws #architecture #buildinpublic

7 min read

Cover image for The polish pass: smart add, pull-to-refresh, sticky headers, tighter archive

Ibukun Demehin

Jul 22

The polish pass: smart add, pull-to-refresh, sticky headers, tighter archive

#reactnative #mobile #ux #buildinpublic

7 min read

Cover image for The Expenses tab MVP: prices ride on the items you already have

Ibukun Demehin

Aug 22

The Expenses tab MVP: prices ride on the items you already have

#reactnative #aws #mobile #buildinpublic

6 min read

Cover image for Point your camera at a receipt and Claude reads it

Ibukun Demehin

Aug 22

Point your camera at a receipt and Claude reads it

#reactnative #aws #ai #buildinpublic

8 min read

Cover image for Barcode lookup: a provider chain with an LLM as the normaliser

Ibukun Demehin

Aug 22

Barcode lookup: a provider chain with an LLM as the normaliser

#aws #ai #architecture #buildinpublic

7 min read

Cover image for What your receipts know: price history, "last paid", trends, savings

Ibukun Demehin

Aug 22

What your receipts know: price history, "last paid", trends, savings

#reactnative #datavis #mobile #buildinpublic

7 min read

Cover image for Your app hardcodes GBP: currency as a first-class preference

Ibukun Demehin

Aug 22

Your app hardcodes GBP: currency as a first-class preference

#reactnative #i18n #mobile #buildinpublic

6 min read

Cover image for The purchase ledger: when did you actually buy that?

Ibukun Demehin

Aug 23

The purchase ledger: when did you actually buy that?

#aws #dynamodb #reactnative #buildinpublic

6 min read

Cover image for Budgets live on months, not lists: the period-first Expenses rework

Ibukun Demehin

Sep 3

Budgets live on months, not lists: the period-first Expenses rework

#reactnative #aws #architecture #buildinpublic

6 min read

Cover image for Photograph a paper list: the third input modality

Ibukun Demehin

Sep 3

Photograph a paper list: the third input modality

#reactnative #aws #mobile #buildinpublic

6 min read

Cover image for The EAS build that demanded four packages that never existed

Ibukun Demehin

Sep 3

The EAS build that demanded four packages that never existed

#npm #expo #debugging #buildinpublic

5 min read

Cover image for Tablet-worthy without a redesign: the content-column pass

Ibukun Demehin

Sep 3

Tablet-worthy without a redesign: the content-column pass

#reactnative #expo #mobile #buildinpublic

5 min read

Cover image for Push notifications and the weekly shopping reminder

Ibukun Demehin

Sep 3

Push notifications and the weekly shopping reminder

#reactnative #expo #mobile #buildinpublic

5 min read

Cover image for The compliance sprint nobody blogs about

Ibukun Demehin

Sep 3

The compliance sprint nobody blogs about

#webdev #mobile #startup #buildinpublic

5 min read

Cover image for Your prod data, faked: one-way replication with deterministic PII masking

Ibukun Demehin

Sep 3

Your prod data, faked: one-way replication with deterministic PII masking

#aws #dynamodb #serverless #buildinpublic

6 min read

Cover image for The Home dashboard: one screen that earns the default tab

Ibukun Demehin

Sep 6

The Home dashboard: one screen that earns the default tab

#reactnative #mobile #ux #buildinpublic

5 min read

Cover image for Polish pass #2: a dozen small things that make it feel real

Ibukun Demehin

Sep 6

Polish pass #2: a dozen small things that make it feel real

#reactnative #mobile #debugging #buildinpublic

6 min read

Cover image for Branded Cognito emails: the customMessage trigger in 20 minutes

Ibukun Demehin

Sep 6

Branded Cognito emails: the customMessage trigger in 20 minutes

#aws #cognito #serverless #buildinpublic

4 min read

Cover image for Scan now, link later: receipts that wait for the list

Ibukun Demehin

Sep 6

Scan now, link later: receipts that wait for the list

#reactnative #aws #architecture #buildinpublic

6 min read

Cover image for Shipping to both stores: the release runbook

Ibukun Demehin

Sep 6

Shipping to both stores: the release runbook

#mobile #expo #startup #buildinpublic

6 min read

Cover image for Moving a live backend to a fresh AWS account

Ibukun Demehin

Sep 6

Moving a live backend to a fresh AWS account

#aws #devops #serverless #buildinpublic

5 min read

Cover image for Account deletion for real: immediate, guest round-trip, admin-initiated

Ibukun Demehin

Sep 6

Account deletion for real: immediate, guest round-trip, admin-initiated

#aws #security #serverless #buildinpublic

6 min read

Cover image for The app speaks 19 languages: tiered i18n and the AI translation pipeline

Ibukun Demehin

Sep 6

The app speaks 19 languages: tiered i18n and the AI translation pipeline

#reactnative #i18n #mobile #buildinpublic

6 min read

Cover image for Emails in the user's language, and the frozen Cognito pool

Ibukun Demehin

Sep 6

Emails in the user's language, and the frozen Cognito pool

#aws #cognito #i18n #buildinpublic

5 min read

Cover image for In-app announcements: talking to users after the build shipped

Ibukun Demehin

Sep 6

In-app announcements: talking to users after the build shipped

#reactnative #expo #mobile #buildinpublic

6 min read

Cover image for The activity log: what users did, without their words

Ibukun Demehin

Sep 6

The activity log: what users did, without their words

#aws #dynamodb #architecture #buildinpublic

5 min read

Cover image for The admin console: a web app on a mobile app's Cognito pool

Ibukun Demehin

Sep 6

The admin console: a web app on a mobile app's Cognito pool

#nextjs #aws #react #buildinpublic

6 min read

Cover image for MUI vs Tailwind: the cascade-layers war story

Ibukun Demehin

Sep 6

MUI vs Tailwind: the cascade-layers war story

#css #react #nextjs #debugging

5 min read

Cover image for Polish pass #3: store-release edges and platform traps

Ibukun Demehin

Sep 6

Polish pass #3: store-release edges and platform traps

#reactnative #mobile #debugging #buildinpublic

6 min read