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M4RKYU.SYSOntario

Ask the system

Interrogate the portfolio

A terminal wired into everything Mark has shipped. Ask in plain language — it answers with the work itself, linked.

M4RKYU.SYS
● online

Query the archive. Try one of these, or ask your own:

    00 / start here

    Find your way around.

    I'm Mark — a creative developer in Ontario, working across software, games, and visual systems. This site is one archive instead of seven scattered profiles.

    Pick a thread

    1. 01

      Work

      Production builds and case studies.

    2. 02

      Games

      Prototypes, jam entries, devlogs.

    3. 03

      Archive

      Photo collections and visual experiments.

    4. 04

      Logs

      Devlogs, field notes, things I'm thinking about.

    5. 05

      Resources

      Tools I built, links I trust.

    6. 06

      About

      The longer version, with portrait.

    01 / selected

    Things I shipped.

    A short loop of the projects worth showing — ready ones in front, drafts dimmed behind them.

    All projects
    01
    Bloomprint yard plan blueprint cover
    Ready2026

    Bloomprint

    Turns yard inspiration into a buildable plan — what to buy, how much, what tools, in what order, and what can go wrong.

    • Next.js
    • React 19
    • TypeScript
    • Supabase
    • +4
    02
    Purecreate 3D apparel customizer cover
    Ready2024

    Purecreate

    A 3D apparel customizer that designs your shirt in real time and generates decals from a text prompt with DALL·E 3.

    • Next.js
    • React
    • react-three-fiber
    • three.js
    • +3
    03
    Unreal battle-royale safe-zone map cover
    Ready2021

    Unreal Battle Royale Prototype

    A UE4 battle-royale prototype built with Blueprints — inventory, weapon handling, and core match systems.

    • Unreal Engine 4
    • Blueprints
    • C++
    04
    Descent Into Madness pixel dungeon cover
    Ready2024

    Descent Into Madness

    A 2D pixel-art roguelike shooter built in Unity — descend, fight, and survive escalating runs.

    • Unity
    • C#
    • Pixel art
    • itch.io
    05
    UI Studio collaborative canvas cover
    Ready2024

    UI Studio

    A real-time collaborative design canvas where multiple people sketch, arrange, and edit the same board at once.

    • Next.js
    • TypeScript
    • Fabric.js
    • Liveblocks
    • Tailwind CSS
    06
    AI Agent Toolkit terminal and agent graph cover
    Ready2026

    AI Agent Toolkit

    A Windows-first local AI coding toolkit — multi-agent workflows, Ollama automation, and developer dashboard utilities.

    • PowerShell
    • Ollama
    • Local LLMs
    • Windows
    07
    M4rkdown split editor and preview cover
    Ready2024

    M4rkdown

    An offline-first markdown editor with realtime collaboration, PWA install, and a multiplayer typing arena.

    • Preact
    • TypeScript
    • Vite
    • CodeMirror
    • +2
    in draft
    Nimbus monochrome cover
    Draft2024

    Nimbus

    in draft
    BioLoom monochrome cover
    Draft2024

    BioLoom

    in draft
    M4rketView monochrome cover
    Draft2024

    M4rketView

    03 / visual

    Frames & films.

    Black-and-white photography, digital art, and short films. Stills and motion, filed as they're finished.

    Open archive
    Chengdu travel collection cover art
    collection · 1/4

    Chengdu

    Chengdu

    0 frames
    Open collection

    04 / writing

    Field notes.

    Short, dated, opinionated. Devlog plus systems notes — syndicated from dev.to.

    All logs
    SHIPPING
    Jun 164 min read

    Frontend Linear Data Structures Deep Dive: Arrays, Stacks, Queues, and Linked Lists

    The Big Picture Before diving into stacks, queues, and linked lists, it helps to know...

    computersciencealgorithmsbeginnersjavascript
    Read
    DEVLOG SOON

    Field notes for this slot are queued.

    05 / resources

    Tools & links.

    A working stack — in-browser dev utilities I built, plus the links I actually keep open. Each with a note on why.

    Open resources

    Tools

    built · run in-browser
    38

    Links

    kept open
    56
    ZhenXiao Mark YuOntario, Canada

    06 / about

    The person behind it.

    A cross-cultural path, Ontario-based. Software, games, and images — one practice across many surfaces.

    The full story

    let's collaborate

    Let's build

    Something on your mind? Frontend systems, prototypes, creative tooling, or just a hello — whichever.

    Send a briefEmail directly
    Follow the workGitHubdev.to