{"adoption": {"forks": 162, "observed_at": "2026-08-28T04:05:02.929066+00:00", "stars": 1554}, "canonical_url": "https://ross.abutalabs.com/products/coursebook", "card": {"archived": false, "artifact_type": "learning-resource", "description": "Open Source Introductory Systems Programming Textbook for the University of Illinois", "domain": ["operating-systems", "education", "developer-tools", "tutorials"], "enriched": true, "function": ["documentation", "markdown"], "health_score": 80, "homepage": "http://cs241.cs.illinois.edu/coursebook", "language": "TeX", "license": null, "license_family": "other", "maturity": "active", "member_repos": ["cs341-illinois/coursebook"], "name": "cs341-illinois/coursebook", "platform": ["cli"], "pushed_at": "2026-08-26T19:10:21+00:00", "repo": "cs341-illinois/coursebook", "stars": 1554, "tags": ["textbook", "systems-programming", "c", "posix", "latex", "wikibook", "open-courseware", "linux"], "topics": ["wikibook", "latex", "awesome", "c", "linux", "posix", "system-programming"], "urls": [], "use_cases": ["learn systems programming in C on Linux", "study POSIX APIs like processes, threads, and signals", "find a free operating systems course textbook", "prepare for a university systems programming course", "reference Linux system programming concepts like memory and file systems", "contribute to or fork an open systems programming book"], "what_it_is": "An open-source introductory systems programming textbook written in LaTeX and used for CS 341 at the University of Illinois Urbana-Champaign. It covers C and Linux/POSIX systems programming and is published as PDF, HTML, EPUB, and wiki formats.", "when_to_avoid": ["you need a hands-on tool or library rather than reading material", "you are a complete beginner without prior programming or assembly exposure", "you need Windows or macOS systems programming content"], "when_to_choose": ["you want a free, rigorous introduction to C systems programming on Linux", "you are a student or instructor of an OS or systems programming course", "you prefer textbook material with citations, glossary, and multiple export formats"]}, "data_as_of": "2026-08-30T08:39:29.467469+00:00", "members": [{"path": "/products/coursebook", "repo": "cs341-illinois/coursebook", "role": "main", "score": 67}], "provenance": {"archived": {"kind": "observed", "observed_at": "2026-08-28T04:05:02.929066+00:00", "source": "github"}, "artifact_type": {"confidence": null, "enriched_at": "2026-08-30T04:30:04.817749+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "7909bdc7aa67c58795443dfa4c5e7172714a89ab8ebbb09f67077caed1cd7791", "fetched_at": "2026-08-28T04:05:02.929066+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cs341-illinois/coursebook"}], "taxonomy_version": 1}, "description": {"kind": "observed", "observed_at": "2026-08-28T04:05:02.929066+00:00", "source": "github"}, "domain": {"confidence": null, "enriched_at": "2026-08-30T04:30:04.817749+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "7909bdc7aa67c58795443dfa4c5e7172714a89ab8ebbb09f67077caed1cd7791", "fetched_at": "2026-08-28T04:05:02.929066+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cs341-illinois/coursebook"}], "taxonomy_version": 1}, "enriched": {"inputs": [], "kind": "computed", "method": "enrichment_status"}, "function": {"confidence": null, "enriched_at": "2026-08-30T04:30:04.817749+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "7909bdc7aa67c58795443dfa4c5e7172714a89ab8ebbb09f67077caed1cd7791", "fetched_at": "2026-08-28T04:05:02.929066+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cs341-illinois/coursebook"}], "taxonomy_version": 1}, "health_score": {"inputs": ["days_since_push", "days_since_release", "archived"], "kind": "computed", "method": "health_v1"}, "homepage": {"kind": "observed", "observed_at": "2026-08-28T04:05:02.929066+00:00", "source": "github"}, "language": {"kind": "observed", "observed_at": "2026-08-28T04:05:02.929066+00:00", "source": "github"}, "license": {"kind": "observed", "observed_at": "2026-08-28T04:05:02.929066+00:00", "source": "github"}, "license_family": {"inputs": ["license"], "kind": "computed", "method": "license_family"}, "maturity": {"confidence": null, "enriched_at": "2026-08-30T04:30:04.817749+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "7909bdc7aa67c58795443dfa4c5e7172714a89ab8ebbb09f67077caed1cd7791", "fetched_at": "2026-08-28T04:05:02.929066+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cs341-illinois/coursebook"}], "taxonomy_version": 1}, "member_repos": {"kind": "observed", "observed_at": "2026-08-28T04:05:02.929066+00:00", "source": "github"}, "name": {"kind": "observed", "observed_at": "2026-08-28T04:05:02.929066+00:00", "source": "github"}, "platform": {"confidence": null, "enriched_at": "2026-08-30T04:30:04.817749+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "7909bdc7aa67c58795443dfa4c5e7172714a89ab8ebbb09f67077caed1cd7791", "fetched_at": "2026-08-28T04:05:02.929066+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cs341-illinois/coursebook"}], "taxonomy_version": 1}, "pushed_at": {"kind": "observed", "observed_at": "2026-08-28T04:05:02.929066+00:00", "source": "github"}, "repo": {"kind": "observed", "observed_at": "2026-08-28T04:05:02.929066+00:00", "source": "github"}, "stars": {"kind": "observed", "observed_at": "2026-08-28T04:05:02.929066+00:00", "source": "github"}, "tags": {"confidence": null, "enriched_at": "2026-08-30T04:30:04.817749+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "7909bdc7aa67c58795443dfa4c5e7172714a89ab8ebbb09f67077caed1cd7791", "fetched_at": "2026-08-28T04:05:02.929066+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cs341-illinois/coursebook"}], "taxonomy_version": 1}, "topics": {"kind": "observed", "observed_at": "2026-08-28T04:05:02.929066+00:00", "source": "github"}, "urls": {"kind": "observed", "observed_at": "2026-08-28T04:05:02.929066+00:00", "source": "github"}, "use_cases": {"confidence": null, "enriched_at": "2026-08-30T04:30:04.817749+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "7909bdc7aa67c58795443dfa4c5e7172714a89ab8ebbb09f67077caed1cd7791", "fetched_at": "2026-08-28T04:05:02.929066+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cs341-illinois/coursebook"}], "taxonomy_version": 1}, "what_it_is": {"confidence": null, "enriched_at": "2026-08-30T04:30:04.817749+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "7909bdc7aa67c58795443dfa4c5e7172714a89ab8ebbb09f67077caed1cd7791", "fetched_at": "2026-08-28T04:05:02.929066+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cs341-illinois/coursebook"}], "taxonomy_version": 1}, "when_to_avoid": {"confidence": null, "enriched_at": "2026-08-30T04:30:04.817749+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "7909bdc7aa67c58795443dfa4c5e7172714a89ab8ebbb09f67077caed1cd7791", "fetched_at": "2026-08-28T04:05:02.929066+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cs341-illinois/coursebook"}], "taxonomy_version": 1}, "when_to_choose": {"confidence": null, "enriched_at": "2026-08-30T04:30:04.817749+00:00", "kind": "inferred", "prompt_version": 1, "sources": [{"content_hash": "7909bdc7aa67c58795443dfa4c5e7172714a89ab8ebbb09f67077caed1cd7791", "fetched_at": "2026-08-28T04:05:02.929066+00:00", "kind": "readme", "missing": false, "url": "https://github.com/cs341-illinois/coursebook"}], "taxonomy_version": 1}}, "score": {"components": {"activity": 99, "longevity": 100, "rhythm": 8}, "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": 3141, "days_push": 7, "days_rel": null, "gap_med": null, "n_releases_24m": 0}, "score": 67, "version": 2}, "staleness": {"enrichment_outdated": false, "low_confidence": false, "scrape_days": 9, "stale_scrape": false}}