I’m Huanchen, also known as HCore. Here are my projects, technical notes, and browser tools. Recent notes and site updates are collected below.

I’m HCore.

A goose in Chengdu who goes “gulugulu.” I jot down ideas and find time to build them.

I make websites and small tools, work with servers, and explore electronics. When something breaks, I like taking it apart to find out why.

Things I enjoy
Playing together, visual details, useful little things.
How I work
Find the cause, then check that the fix lasts.
More about me

This site is a project, too.

Coreli brings together my introduction, technical notes, and small tools I use. The lake is part of it: the goose’s movements and the scrolling camera are experiments I can keep working on.

Astro and Tailwind build the pages, React powers the workbench, and Three.js draws the lake. Usage and architecture guides live in GitBook, with more technical reference in Notion.

Pages
Chinese and English, with light and dark themes.
Notes
Usage guides, architecture, and site updates.
Read the docs

Bring an image. Try something.

Turn an image into pixel art or ASCII, then send its colours to a preview. Connect text, JSON, and URLs on the same desk: change the input and the result follows.

Image and text processing stays in your browser. The desk also has a Minecraft checker, which queries a third-party status service.

Image experiments
Adjust pixels or character density, then export.
Connected data
Move tools, connect results, or disconnect them.
Open the workbench

Have a question? Get in touch.

Questions about the site, a tool, or something you are tinkering with? You can get in touch.

The lakeside mailbox opens as part of the scene. To send a real message, choose email, QQ, or another option on the contact page.

Other channels
Find QQ, GitHub, and Douyin on the contact page.
Contact details

Featured project / Personal website

Coreli

A small lakeside world, bilingual pages, and browser experiments. I build the interactions here and keep the guides alongside them.

Read the project guides

Built with: Astro · Three.js · React · GSAP

Inside Coreli

An interactive lake

A Three.js world with a goose that observes, walks, and swims. Scene objects lead to real pages.

Return to the lake
A connected workbench

Move tools around and connect images, JSON, URLs, and colors to a live preview.

Try the workbench
Guides and site notes

Usage guides, architecture notes, and an honest record of changes to this site.

Browse documentation

Development notes

Recent work

Recent work on the Knowledge Hub, contact and tools.

Explore documentation by topic, preview a contact message as a letter, and maximize the tool workspace. Analytics remains controlled by separate consent choices.

Read recent notes
Site updates

Legal pages and privacy choices on both sites

Terms, privacy and license information for the main site and Notes, with separate optional storage choices.

View the changelog