Developer releases HTMLPlus Element v4, a compiler that automates web component boilerplate

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A developer has publicly unveiled HTMLPlus Element v4 after several years of intermittent work and over 500 commits, describing it as a compiler that eliminates repetitive boilerplate when writing native web custom elements. The tool uses TypeScript decorators to automatically derive tag names from class names, resolve property types, pick up co-located CSS files, and generate TypeScript definitions at build time. Output components work across major frameworks — including React, Vue, Angular, Svelte, and Solid — without wrapper packages, by emitting events under each framework's expected naming convention. The runtime weighs approximately 8 KB gzipped per element and under 11 KB for the full library, and the project is already used to power the htmlplus.io UI kit. Currently available as a Vite and Rollup plugin via unplugin, the project is MIT-licensed and open to public feedback on its API design.

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Free JetBrains plugin HotRulez hits 1,000 downloads two months after launch

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ProgrammingDEV Community ·

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ProgrammingDEV Community ·

Tool Automates Weekly PostgreSQL Restore Testing via GitHub Actions

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ProgrammingDEV Community ·

Developer Builds AI Agent That Accepts USDC Micropayments via HTTP 402 Protocol

A developer has shared a technical walkthrough detailing how to build an autonomous AI agent that charges callers small USDC micropayments before returning data, using the x402 HTTP Payment Required extension on the Base blockchain. The agent exposes a simple HTTP endpoint — in this case an ETH/USDC price aggregator — and requires a signed USDC transfer from the caller before fulfilling each request. The setup runs on lightweight infrastructure such as Cloudflare Workers or a basic Flask app on a low-cost VPS, keeping operating costs minimal. Earnings per call are fractions of a cent, and the author cautions that the system demands constant uptime, payment failure handling, and secure key management. The post is framed as a practical experiment for developers rather than a reliable passive income strategy.

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