hapifhir/hapi-fhir
HAPI FHIR is an open-source Java toolkit that allows healthcare software developers to build applications that send, receive, and store medical data using HL7 FHIR — the global standard format for sharing health information between hospitals, apps, and devices. Think of it as the plumbing layer that lets different healthcare systems talk to each other in a common language.
§ 1 — why it matters
With over 2,300 stars and 337 contributors, HAPI FHIR has become the de facto foundation for building FHIR-compliant healthcare software, meaning any startup building in digital health, patient data, or medical records interoperability is likely to encounter or depend on it. Builders entering the healthcare market can dramatically cut time-to-compliance by building on this widely adopted standard rather than negotiating proprietary data formats with every hospital or payer they integrate with.
§ 3 — also rising in developer tools this week
- meta/astryxAstryx is Meta's internal design system — a collection of 150+ pre-built interface components like buttons, forms, and menus — now released publicly so any team can build polished, consistent-looking products without designing everything from scratch. It handles dark mode, brand customization, and accessibility out of the box, and works equally well whether a human developer or an AI coding assistant is building the product.+13.2k stars this week
- pingdotgg/t3codeT3 Code is an open-source hub that lets you manage multiple AI coding assistants — like Claude Code or OpenAI's Codex — from a single app on your computer, phone, or browser. Instead of jumping between different AI tools, you start a coding task at your desk and can review or approve the next steps from your phone.+10.1k stars this week
- mattpocock/skillsThis project is a collection of reusable instruction sets for AI coding assistants — like Claude Code or OpenAI Codex — that guide them to follow a structured engineering process rather than just generating code freely. Instead of letting AI tools work however they want, these 'skills' give them specific workflows for tasks like planning, triaging bugs, and managing documentation, keeping the human developer in control.+7.3k stars this week
- stablyai/orcaOrca is an app that lets you run multiple AI coding assistants simultaneously — think of it like a manager overseeing a team of AI workers, each handling a separate coding task at the same time. It works on desktop, mobile, and in the cloud, bringing together chat, a terminal, and code review tools in one place.+6.7k stars this week
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