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Emanuel Quimper's blog

I build software.I write what I learn.

I'm Emanuel, an AI-native product engineer in Québec. I work at App&Flow and write about mobile, web, and backend software.

Launching or improving a mobile or web app?

Work with me
Emanuel Quimper in a graphite and volt editorial portrait

Writing

Latest writing.

Earlier notes

From the archive.

Writing archive

published notes

Things I learned by building.

Experiments, tutorials, and hard-earned notes from the software I have worked on.

Browse the full archive

Things I'm building.

Kettlebell Protocol active EMOM workout with a 55 second timer, exercise order, and round progressKettlebell Protocol session builder with rearrangeable training blocks and a 25 minute duration estimate

Kettlebell Protocol

An offline-first training log for deliberate kettlebell practice.

Project notes

Independent client work.

Products I’ve helped build as an independent developer.

FrontDoor+ logo

FrontDoor+

An event ticketing platform for online sales, on-site payments, ticket scanning, and live reporting.

My contribution
Built a custom reporting page, integrated Seats.io for seat selection, and added season passes. Fixed excessive battery consumption in the mobile app.

Work at App&Flow.

Products I’ve helped build with the team at App&Flow.

Fin logo over an aerial view of a city park

Fin

A mobile wallet for sending and receiving digital dollars and moving money to a bank account.

My contribution
Contributed to the mobile app, building animations, custom navigation, secure seed phrase handling, and transaction logic, alongside performance improvements.
Dartwords logo with Darty, the animated dart character

Dartwords

A daily word game where Darty gives you clues to help you guess the secret word.

My contribution
Worked primarily on the mobile app using an agentic workflow, directing coding agents for implementation, testing, and code review. Built custom navigation and a native keyboard, worked on animations and Rive integration, and improved performance. Also contributed to the web app. Puzzle packs and an in-app shop are in progress.

Open source

React Native EaseA lightweight animation library with a declarative API powered by Core Animation on iOS and Animator on Android.React Native Google AutocompleteA render-props library that keeps Google autocomplete behavior independent from the interface around it.React Native Design UtilityA small utility for building consistent design systems and responsive styling in React Native.
Emanuel Quimper smiling in a graphite and volt portrait

A personal note

Hi, I’m Emanuel.

I’m a developer in Québec and a former member of the Canadian Forces.

I write to think more clearly, remember what I learn, and help the next developer who runs into the same problem.

Today I build mobile apps, web experiences, and backend systems with an AI-native workflow across research, code, testing, and release.