The competitive dimensions of design tools have changed: Some rent canvases, some turn canvases into code

Penpot with 55K stars is not just a Figma alternative—it rewrites the translation rules from design to code with CSS Grid, uses MCP protocol to let AI directly participate in design, and reclaims data sovereignty through self-hosting. But you must know the costs: lag on large projects, delayed self-hosted versions, and Clojure performance controversies.

ES6 Observer Pattern

// The observed target object let obj = { name: 'zyc', csdn: 'Blog'}; // Observer function print() { console.log('The object was operated!'); } // Use p...