Things I build on my own time.

Products, prototypes and experiments, each with a note on how it was made and what I decided along the way. Some are live and taking payments, some are small tests. This is where I try an idea on myself first.

The All My Parts journaling app on an iPhone.
Product · Live · 2025–present

All My Parts

An AI journaling app inspired by Internal Family Systems therapy.

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An iPhone showing a One Minute French lesson in Messages.
Product · Live in Canada · 2026

One Minute French

Beginner French lessons by text message. No app, no login, one minute a day for twelve weeks.

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The Cortex landing page in a browser window.
Product · Live · 2026

Cortex

Design vocabulary, illustrated. 29 decks on UX laws, color, typography, design systems and AI, drilled a few minutes a day.

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Get in touch humayun.n.k@gmail.com