paritytech/substrate

NestJS is an open-source Node.js framework at nestjs/nest, written primarily in TypeScript while preserving compatibility with plain JavaScript. Its README frames it as an architecture-first alternative to hand-assembling Express or Fastify, blending object-oriented, functional, and functional-reactive patterns into an Angular-inspired structure. The GitHub description bills it as aimed at server-side software that's efficient, scales, and holds up at enterprise scale, and the repo carries strong community support in the facts provided here.

A hand-picked, single-file directory of Node.js packages and resources maintained by sindresorhus, split into categories like HTTP, logging, CLI tooling, and web frameworks, released under CC0-1.0.

Public APIs is a community-curated GitHub repository listing free, publicly accessible APIs across a wide range of categories, with auth type, HTTPS, and CORS noted for each entry. It's a browsable reference, not a library to install.

Awesome Python is a curated list maintained at vinta/awesome-python that groups Python frameworks, libraries, tools, and other resources into 14 categories, from AI & ML to Security and Other. The README calls it an opinionated guide rather than an exhaustive one, and points readers to a companion site, awesome-python.com, for searching and filtering entries instead of scrolling the raw file.