Selected work

07 — projects
Screenshot of AtomicBlaster — multiplayer browser game
01 Realtime multiplayer game

AtomicBlaster

A multiplayer Bomberman-style game running in the browser. Create lobbies or quick-match online, or crowd up to four players around one keyboard — with full gamepad support, shared-seat controls, and lobby links to share.

Realtime multiplayerLobby / matchmakingGamepad APILocal co-op
atomicblaster.quantitative.fi
Screenshot of Disk Space Manager — native macOS disk space analyzer
02 Native macOS app · Disk cleanup

Disk Space Manager

A free, native macOS disk space analyzer. Scan a folder, browse it sorted by size with live colored bars, drill down with a breadcrumb trail, and move space hogs to the Trash — with instant size updates and no license, telemetry, or nag screens.

FreeFind what's eating spaceRuns natively on Apple SiliconOpen source
github.com/sebthedoc/mac_diskspace_manager
Screenshot of PianoHero — web audio rhythm game
03 Rhythm game · Web Audio

PianoHero

A neon piano rhythm game you play on a MIDI keyboard, your computer keys, or touch. Multiple difficulty tracks, selectable instrument voices, and octave control — all synthesized and driven live in the browser.

Web Audio synthesisMIDI inputTouch + keyboardDifficulty curves
piano.quantitative.fi
Screenshot of Bookmarks Home — Chrome new tab page showing bookmarks by folder
04 Chrome extension · New tab page

Bookmarks Home

A Chrome extension that replaces the New Tab page with a clean, searchable view of all your bookmarks. Folders become category columns, a Google search box sits front and center, and the page reads your bookmarks live — no backend, no list to maintain, nothing leaves the browser.

Search as you typeStays private on your deviceLight / dark themeOpen source
github.com/sebthedoc/chrome_homepage_links
Screenshot of Julkaisija — in-browser interview publishing
05 Media workflow · Beta

Julkaisija.com

Turns an interview into a publication. Record in the browser, auto-transcribe, freely edit the transcript and question structure, then publish to blog or social channels in one click — all in a single, polished view.

In-browser recordingAuto-transcription1-click publishi18n · FI/EN/SE
julkaisija.com
Screenshot of VIVAI — AI tool directory
06 Directory · B2B SaaS

VIVAI

An AI tool directory for businesses — a curated, comparable catalog where companies discover, evaluate, and find the AI solutions that fit their operations. Built around a clean comparison-first experience.

CatalogComparisonB2BFinnish market
vivai.fi
Screenshot of Quantitative Learning — AI micro-learning platform
07 EdTech · AI micro-learning

Quantitative Learning

Active micro-learning for the AI era. Teachers upload their material and the platform auto-generates short lessons and interactive practice loops — puzzles, matching, and scenarios built for active recall on a phone, publishable in about 15 minutes.

AI generationActive recallMobile-firstVersion control
learning.quantitative.fi