# cs341-illinois/coursebook

> An open-source introductory systems programming textbook in C for the CS 341 course at the University of Illinois, covering Linux, POSIX, and memory. Built from LaTeX into PDF, Markdown, and HTML.

- Magnitude: 5.8 out of 10 — Breakout
- Stars: 2,247 total · +95 stars today, ≈ 172 by evening
- Star trust: star growth looks organic
- Category: Learning & lists · Language: TeX · Created: 2018-01-26 · Last push: 2026-09-26
- GitHub: https://github.com/cs341-illinois/coursebook · Homepage: http://cs241.cs.illinois.edu/coursebook · Page: https://gitnova.dev/en/r/cs341-illinois/coursebook

## Useful for

- Study systems programming in C chapter by chapter
- Build the PDF version of the textbook from LaTeX sources
- Contribute new chapters and code examples to the textbook

## Why it’s here

- 95 stars so far today, about 172 expected by the end of the day. The usual pace is 0 per day, so that's 172× as much.
- Over the last two days the pace is 12× that of the previous week and a half.
- The spike has held for 3 days in a row — not a one-off blip.
- GitHub Trending today: #5, +265 stars.
- About 18 forks a day — people are taking the code.

## Star trust

Star growth looks organic.

Star-trust labels are heuristics based on the repository’s behavior, not a check of every stargazer.

## Numbers

- Forks: 217
- Issues and pull requests: 247
- Watchers: 43
- Average over the last week: 110 per day
- Usual pace: 0 per day
- Stars in the last hour (measured): 35
- Latest release: fa19 (2019-08-18)

## Stars per day, last 30 days (oldest → newest, today is partial)

2026-08-30 … 2026-09-28: 0, 0, 0, 0, 1, 1, 1, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 2, 1, 0, 142, 293, 162, 95

## Spotted in now

- GitHub Trending today: #5, +265 stars

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Magnitude (0–10) measures how fast and how unusually interest in a repository is growing right now. It is not a quality score.
Days are UTC. “So far today” is a fact; “expected by the end of the day” is a forecast.
Summaries and use cases are written by an LLM (DeepSeek V4.1 Flash) from the README and may be inaccurate: verify specific claims (benchmarks, speed, hardware) in the repository itself.
Data as of 2026-09-28 13:02 UTC, updated every 30 minutes.