Comparing build-time and runtime strategies for getting server-side environment variables safely into client-side JavaScript.

How to stop Claude Code from generating functional-but-ugly demos by prompting for design quality upfront.

Covers the core ideas behind data processing and the layered warehouse model (ODS, DWD, DWS, ADS), explaining how raw data is progressively cleaned, aggregated, and served as business insights.

Covers how to implement Google Sign-In on the web using the Google Identity Services SDK, including token handling and backend verification.

Explores why describing a plan feels like progress but often substitutes for the harder work of actually doing it.

How to programmatically replace specific colors in an image and output the result as a new file, using Canvas or Node.js image libraries.

A Chrome extension that wraps any image in a macOS-style window frame — built with Canvas API and Manifest V3, no backend needed.

A deeper look at how JavaScript primitives and objects actually differ — value types, reference types, and the traps that come with each.

A look at different ways to structure nested components — from basic prop passing to slot composition and render delegation.

进来时是一瓶染发剂，出去时是一只沙鸥——有些颜色，本来就染不了。