spsc://portfolio▍

~/projects $ ls -la

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Case files

Five builds, five problems worth solving. Every row opens the full case file — the problem, what I built, and the impact it left behind.

/01

KryptBoard Emulator

Authenticated encryption for everything you type — before it leaves the browser.

/02

KanjiWidgets

An offline-first PWA that turns spare minutes into kanji reps.

/03

KeyGuardian

Fernet-powered encryption for files & folders — no cloud, no nonsense.

/04

Chinatsu

A game engine built from scratch to master C++ and graphics the hard way.

/05

Knowledge Base

An open-source library of security research, write-ups and workflows.