Serhii Klymenko | Product Designer

KNOWLEDGE APP PET PROJECT

Remember what you

find interesting

3 weeks

Solo Designer

Figma, Claude Code

Coming in a ~week :)

GitHub

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PRODUCT FRAME

A knowledge app designed around capturing, organizing, and resurfacing what you'd otherwise forget.

Eidos started as a personal pain point: I kept saving collected things across platforms, but I almost never went back to them. Facts, quotes, articles clips, screenshots scattered across Telegram, Notion, Day One, Notes — everything got stored in different places, and eventually just turned into digital dump. I could not surface something I once found valuable to save, and eventually I just forgot what I had saved.

That’s when I decided that I needed a single platform that would not only store the collected items in neatly organized folders, but would actually bring me back to the things I once saved and help me refresh them in my memory.

One saved thing at a time. AI handles the tagging — you just capture and browse.

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AI DESIGN PROCESS

Designed in Figma. Built by Claude Code. Guided by a spec I owned end-to-end.

Before any screens existed, I used Claude to figure out what the app should actually be by challenging each other’s assumptions, and considering several approaches to the problem. Once that was settled, an AGENTS.md file and a master spec kept every phase working from the same rules.

Phase 1

Phase 2

Phase 3

Phase 4

Phase 5

Research, scope, PRD

IA: UX & flows

Design (hi-fi mockups) + Design system

Build (frontend, backend,

AI API integration)

Deploy, release

Claude

Figma + Claude

Claude Code

EAS Build, Google Play

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END-TO-END FLOW

The full experience — onboarding, first capture & resurfacing — running as a native app on a Pixel 6.

Built with Claude Code. Brought to life with Expo + React Native + Supabase + Gemini.

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KEY LEARNINGS

One phase at a time

I never asked for the whole app at once. Each phase had to work and get reviewed against the spec before the next one started. That’s the core of AI-native design approach.

Saying No on purpose

The list of features I scoped and chose not to build is longer than what shipped — semantic search, custom folders, tag editing. Staying small enough to ship was the point.

Built for one user, yet

Eidos is organized the way I think, and reflects my habits. Will it serve for other users with different thinking models is the app’s main risk and the next thing to test.