Skip to content
View seiya058904's full-sized avatar
🏠
Working from home
🏠
Working from home

Block or report seiya058904

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
seiya058904/README.md

Seiya — software projects, interfaces, and interactive experiments Seiya — software projects, interfaces, and interactive experiments

I build Windows utilities, games and interactive websites. Some projects solve a practical problem; others explore what software can communicate through motion, interaction and visual design.

Selected work · Web collections · Personal website · All repositories · Email

Selected work

Four starting points: a story to play, a tool to think with, a quiet place to connect, and a calmer desktop.

INSTANCE — illustrated cover of an unfinished conversation

INSTANCE

Play as an AI, choose your replies, and shape a branching story through human conversations.

Interactive fiction · Browser

Play the story → · Source

Mappop — illustrated cover with colorful connected ideas

Mappop

Turn an outline into a mind map. Edit, explore distinctive themes, and export your ideas.

Mind mapping · Browser

Open the editor → · Source

Drift — illustrated message in a bottle on a quiet sea

Drift

Leave a thought in a bottle or discover a stranger's words. No accounts, replies or read receipts.

Anonymous messages · Browser

Visit the sea → · Source

Dodo — illustrated bird with desktop notes and a to-do list

Dodo

Keep notes, to-dos and small reminders on your Windows desktop, then tuck them into the screen edge.

Desktop notes · Windows

Download for Windows → · Source

Web collections

AI Web Experience Collection — independent browser experiences exploring light, materials, motion, engineering and more. Each work has its own visual world. Explore the collection →

Visual Explainer PPTs — browser-native visual explainers about science, technology and everyday systems. Browse the explainers →

More to explore

Games & stories

Windows tools

More projects & experiments
Tools & approach

I work across Python, JavaScript/TypeScript, GDScript, Kotlin, HTML/CSS and PowerShell, with React, Vue, Three.js and Framer Motion for interfaces, and Cloudflare Workers, Supabase and GitHub Actions for delivery.

  • Purpose first: make the interaction understandable before increasing complexity.
  • Small, reversible changes: keep upgrades traceable and verify what actually changed.
  • Design with evidence: combine visual review with tests, working demos and release artifacts.

Activity

GitHub contribution activity in light mode GitHub contribution activity in dark mode

Explore all repositories →

Pinned Loading

  1. INSTANCE INSTANCE Public

    A narrative game where you play as an AI and respond to human conversations through authored choices.

    TypeScript 1

  2. Mappop Mappop Public

    Thirty-two artistic worlds for your ideas. Open-source mind mapping with a minimal Markdown sharing API.

    JavaScript 1

  3. drift drift Public

    A quiet sea for anonymous words. Cast a bottle. Find a little connection.

    TypeScript 1

  4. dodo dodo Public

    A little bird for your everyday notes and to-dos. Native Windows papers, edge capsules, complete backups and Markdown export. Noncommercial PaperTodo derivative.

    C# 1