{"adoption": {"forks": 112, "observed_at": "2026-08-28T04:05:44.281363+00:00", "stars": 1850}, "canonical_url": "https://ross.abutalabs.com/products/learn-nodejs-hard-way", "card": {"archived": false, "artifact_type": "learning-resource", "description": "Learn NodeJS and master the art of server-side programming by creating a backend framework with 0 dependencies.", "domain": ["backend", "web-development", "tutorials", "developer-tools"], "enriched": true, "function": ["web-framework", "http-server", "developer-tools"], "health_score": 94, "homepage": "https://www.thenodebook.com", "language": "JavaScript", "license": "NOASSERTION", "license_family": "other", "maturity": "active", "member_repos": ["ishtms/learn-nodejs-hard-way"], "name": "ishtms/learn-nodejs-hard-way", "platform": ["cli"], "pushed_at": "2026-07-08T20:55:59+00:00", "repo": "ishtms/learn-nodejs-hard-way", "stars": 1850, "tags": ["book", "nodejs-internals", "learning-by-doing", "zero-dependency", "backend-framework", "tutorial", "velocy", "nodebook", "nodejs", "javascript"], "topics": ["api", "backend", "book", "javascript", "learning", "learning-by-doing", "node", "nodejs", "programming", "backend-development", "coding", "learn-to-code", "learning-exercise", "programming-fundamentals", "server", "training-materials", "learn"], "urls": [], "use_cases": ["learn nodejs from scratch", "understand node.js internals like event loop and streams", "build a backend framework with zero dependencies", "learn server-side javascript by doing", "prepare for node.js backend interview questions", "understand how http servers and routing work under the hood"], "what_it_is": "A free online book and repository that teaches Node.js and server-side programming by building a zero-dependency backend framework (Velocy) from scratch. It is part of the larger NodeBook project, which explains Node.js internals from the runtime and event loop up to production systems.", "when_to_avoid": ["you need a production-ready framework to use today rather than a learning exercise", "you want a quick reference or cheat sheet instead of a long-form book", "you are a complete beginner not yet comfortable with JavaScript"], "when_to_choose": ["you want deep, first-principles understanding of Node.js rather than API surface knowledge", "you prefer learning by building a real project alongside reading", "you want free, code-along material with exercises", "you are preparing for backend/node.js system design and interviews"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/learn-nodejs-hard-way", "repo": "ishtms/learn-nodejs-hard-way", "role": "main", "score": 75}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:05:44.281363+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T03:17:07.793155+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "b11125edb2543290dff0950b43d1e6e442e3753eccf7efc7e4994ccb833c6f3e", "fetched_at": "2026-08-28T04:05:44.281363+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ishtms/learn-nodejs-hard-way"}, {"content_hash": "717f80730f8739d5555ece3573e2e589c87d59ebf8dfb7c99816076d4e0e005e", "fetched_at": "2026-08-29T10:56:17.833181+00:00", "kind": "homepage", "missing": false, "url": "https://www.thenodebook.com"}, {"content_hash": "4a988d2bbec4d541465d649b47c32aa9b2864ac9ecc1bf6bf54c10b3c95f51ed", "fetched_at": "2026-08-29T10:56:17.842279+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/pricing"}, {"content_hash": "642e19f1d9f9c6e43d91db6830ef78b35a648240eb93ed051fdf22e4478816d9", "fetched_at": "2026-08-29T10:56:17.844378+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/browse/async-patterns"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:05:44.281363+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T03:17:07.793155+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "b11125edb2543290dff0950b43d1e6e442e3753eccf7efc7e4994ccb833c6f3e", "fetched_at": "2026-08-28T04:05:44.281363+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ishtms/learn-nodejs-hard-way"}, {"content_hash": "717f80730f8739d5555ece3573e2e589c87d59ebf8dfb7c99816076d4e0e005e", "fetched_at": "2026-08-29T10:56:17.833181+00:00", "kind": "homepage", "missing": false, "url": "https://www.thenodebook.com"}, {"content_hash": "4a988d2bbec4d541465d649b47c32aa9b2864ac9ecc1bf6bf54c10b3c95f51ed", "fetched_at": "2026-08-29T10:56:17.842279+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/pricing"}, {"content_hash": "642e19f1d9f9c6e43d91db6830ef78b35a648240eb93ed051fdf22e4478816d9", "fetched_at": "2026-08-29T10:56:17.844378+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/browse/async-patterns"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T03:17:07.793155+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "b11125edb2543290dff0950b43d1e6e442e3753eccf7efc7e4994ccb833c6f3e", "fetched_at": "2026-08-28T04:05:44.281363+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ishtms/learn-nodejs-hard-way"}, {"content_hash": "717f80730f8739d5555ece3573e2e589c87d59ebf8dfb7c99816076d4e0e005e", "fetched_at": "2026-08-29T10:56:17.833181+00:00", "kind": "homepage", "missing": false, "url": "https://www.thenodebook.com"}, {"content_hash": "4a988d2bbec4d541465d649b47c32aa9b2864ac9ecc1bf6bf54c10b3c95f51ed", "fetched_at": "2026-08-29T10:56:17.842279+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/pricing"}, {"content_hash": "642e19f1d9f9c6e43d91db6830ef78b35a648240eb93ed051fdf22e4478816d9", "fetched_at": "2026-08-29T10:56:17.844378+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/browse/async-patterns"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:05:44.281363+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:05:44.281363+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:05:44.281363+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T03:17:07.793155+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "b11125edb2543290dff0950b43d1e6e442e3753eccf7efc7e4994ccb833c6f3e", "fetched_at": "2026-08-28T04:05:44.281363+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ishtms/learn-nodejs-hard-way"}, {"content_hash": "717f80730f8739d5555ece3573e2e589c87d59ebf8dfb7c99816076d4e0e005e", "fetched_at": "2026-08-29T10:56:17.833181+00:00", "kind": "homepage", "missing": false, "url": "https://www.thenodebook.com"}, {"content_hash": "4a988d2bbec4d541465d649b47c32aa9b2864ac9ecc1bf6bf54c10b3c95f51ed", "fetched_at": "2026-08-29T10:56:17.842279+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/pricing"}, {"content_hash": "642e19f1d9f9c6e43d91db6830ef78b35a648240eb93ed051fdf22e4478816d9", "fetched_at": "2026-08-29T10:56:17.844378+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/browse/async-patterns"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:05:44.281363+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:05:44.281363+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T03:17:07.793155+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "b11125edb2543290dff0950b43d1e6e442e3753eccf7efc7e4994ccb833c6f3e", "fetched_at": "2026-08-28T04:05:44.281363+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ishtms/learn-nodejs-hard-way"}, {"content_hash": "717f80730f8739d5555ece3573e2e589c87d59ebf8dfb7c99816076d4e0e005e", "fetched_at": "2026-08-29T10:56:17.833181+00:00", "kind": "homepage", "missing": false, "url": "https://www.thenodebook.com"}, {"content_hash": "4a988d2bbec4d541465d649b47c32aa9b2864ac9ecc1bf6bf54c10b3c95f51ed", "fetched_at": "2026-08-29T10:56:17.842279+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/pricing"}, {"content_hash": "642e19f1d9f9c6e43d91db6830ef78b35a648240eb93ed051fdf22e4478816d9", "fetched_at": "2026-08-29T10:56:17.844378+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/browse/async-patterns"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:05:44.281363+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:05:44.281363+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:05:44.281363+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T03:17:07.793155+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "b11125edb2543290dff0950b43d1e6e442e3753eccf7efc7e4994ccb833c6f3e", "fetched_at": "2026-08-28T04:05:44.281363+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ishtms/learn-nodejs-hard-way"}, {"content_hash": "717f80730f8739d5555ece3573e2e589c87d59ebf8dfb7c99816076d4e0e005e", "fetched_at": "2026-08-29T10:56:17.833181+00:00", "kind": "homepage", "missing": false, "url": "https://www.thenodebook.com"}, {"content_hash": "4a988d2bbec4d541465d649b47c32aa9b2864ac9ecc1bf6bf54c10b3c95f51ed", "fetched_at": "2026-08-29T10:56:17.842279+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/pricing"}, {"content_hash": "642e19f1d9f9c6e43d91db6830ef78b35a648240eb93ed051fdf22e4478816d9", "fetched_at": "2026-08-29T10:56:17.844378+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/browse/async-patterns"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:05:44.281363+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:05:44.281363+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T03:17:07.793155+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "b11125edb2543290dff0950b43d1e6e442e3753eccf7efc7e4994ccb833c6f3e", "fetched_at": "2026-08-28T04:05:44.281363+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ishtms/learn-nodejs-hard-way"}, {"content_hash": "717f80730f8739d5555ece3573e2e589c87d59ebf8dfb7c99816076d4e0e005e", "fetched_at": "2026-08-29T10:56:17.833181+00:00", "kind": "homepage", "missing": false, "url": "https://www.thenodebook.com"}, {"content_hash": "4a988d2bbec4d541465d649b47c32aa9b2864ac9ecc1bf6bf54c10b3c95f51ed", "fetched_at": "2026-08-29T10:56:17.842279+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/pricing"}, {"content_hash": "642e19f1d9f9c6e43d91db6830ef78b35a648240eb93ed051fdf22e4478816d9", "fetched_at": "2026-08-29T10:56:17.844378+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/browse/async-patterns"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T03:17:07.793155+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "b11125edb2543290dff0950b43d1e6e442e3753eccf7efc7e4994ccb833c6f3e", "fetched_at": "2026-08-28T04:05:44.281363+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ishtms/learn-nodejs-hard-way"}, {"content_hash": "717f80730f8739d5555ece3573e2e589c87d59ebf8dfb7c99816076d4e0e005e", "fetched_at": "2026-08-29T10:56:17.833181+00:00", "kind": "homepage", "missing": false, "url": "https://www.thenodebook.com"}, {"content_hash": "4a988d2bbec4d541465d649b47c32aa9b2864ac9ecc1bf6bf54c10b3c95f51ed", "fetched_at": "2026-08-29T10:56:17.842279+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/pricing"}, {"content_hash": "642e19f1d9f9c6e43d91db6830ef78b35a648240eb93ed051fdf22e4478816d9", "fetched_at": "2026-08-29T10:56:17.844378+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/browse/async-patterns"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T03:17:07.793155+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "b11125edb2543290dff0950b43d1e6e442e3753eccf7efc7e4994ccb833c6f3e", "fetched_at": "2026-08-28T04:05:44.281363+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ishtms/learn-nodejs-hard-way"}, {"content_hash": "717f80730f8739d5555ece3573e2e589c87d59ebf8dfb7c99816076d4e0e005e", "fetched_at": "2026-08-29T10:56:17.833181+00:00", "kind": "homepage", "missing": false, "url": "https://www.thenodebook.com"}, {"content_hash": "4a988d2bbec4d541465d649b47c32aa9b2864ac9ecc1bf6bf54c10b3c95f51ed", "fetched_at": "2026-08-29T10:56:17.842279+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/pricing"}, {"content_hash": "642e19f1d9f9c6e43d91db6830ef78b35a648240eb93ed051fdf22e4478816d9", "fetched_at": "2026-08-29T10:56:17.844378+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/browse/async-patterns"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T03:17:07.793155+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "b11125edb2543290dff0950b43d1e6e442e3753eccf7efc7e4994ccb833c6f3e", "fetched_at": "2026-08-28T04:05:44.281363+00:00", "kind": "readme", "missing": false, "url": "https://github.com/ishtms/learn-nodejs-hard-way"}, {"content_hash": "717f80730f8739d5555ece3573e2e589c87d59ebf8dfb7c99816076d4e0e005e", "fetched_at": "2026-08-29T10:56:17.833181+00:00", "kind": "homepage", "missing": false, "url": "https://www.thenodebook.com"}, {"content_hash": "4a988d2bbec4d541465d649b47c32aa9b2864ac9ecc1bf6bf54c10b3c95f51ed", "fetched_at": "2026-08-29T10:56:17.842279+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/pricing"}, {"content_hash": "642e19f1d9f9c6e43d91db6830ef78b35a648240eb93ed051fdf22e4478816d9", "fetched_at": "2026-08-29T10:56:17.844378+00:00", "kind": "site_page", "missing": false, "url": "https://www.thenodebook.com/browse/async-patterns"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 91, "longevity": 79, "rhythm": 52}, "computed_at": "2026-09-03T02:20:16.233290+00:00", "flags": ["no_license"], "formula": "round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)", "inputs": {"age_days": 1117, "days_push": 56, "days_rel": 105, "gap_med": null, "n_releases_24m": 1}, "score": 75, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}