# heartleo/zlib > A Go CLI for Z-Library: search, download books, send to Kindle, and integrate with AI agents via Claude Code and Codex plugins. - Magnitude: 3.9 out of 10 — Breakout - Stars: 1,059 total · +5 stars measured 2026-10-18, 11:45–13:49 UTC, ≈ 36 by evening - Star trust: star growth looks organic - Category: Productivity & self-hosted · Language: Go · License: MIT · Created: 2026-04-10 · Last push: 2026-10-18 - GitHub: https://github.com/heartleo/zlib · Homepage: https://zlib.heartleo.dev/ · Page: https://gitnova.dev/en/r/heartleo/zlib ## Useful for - Search and download a book in EPUB or PDF from the terminal - Send a downloaded file to Kindle with one command - Install the plugin into Claude Code or Codex so an agent can find books ## Why it’s here - Star-counter measurements on 2026-10-18 (UTC), 11:45–13:49: 1054 → 1059 stars (+5). This is the change over that interval. - Estimated end-of-day forecast: about +36 stars, using observed gains and the previous day. - Over the last two days the pace is 13× that of the previous week and a half. - Elevated gains were measured on the last 2 completed UTC days in a row. Continued growth is not guaranteed. - GitHub Trending Go today: #1, +126 stars. - About 13 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: 84 - Issues and pull requests: 18 - Watchers: 1 - Average over the last week: 56 per day - Usual pace: 15 per day - Stars in the last hour (measured): 2 - Latest release: v0.0.9 (2026-10-18) ## Stars per day, last 30 days (oldest → newest, today is partial) 2026-09-19 … 2026-10-18: 7, 1, 5, 4, 1, 3, 4, 0, 3, 4, 4, 1, 17, 94, 53, 21, 34, 10, 6, 6, 9, 6, 5, 2, 6, 2, 1, 180, 164, 5 ## Spotted in now - GitHub Trending Go today: #1, +126 stars ## Similar by description 1. **DozenTwelve/Papermorph** — 1.7 · Cooling · AI agents · HTML · +12 stars measured 2026-10-18, 00:27–13:54 UTC, ≈ 19 by evening An AI skill for Claude Code that turns PDF books into animated interactive web books with narration, storyboards and quizzes. Works with Opus 5.5 only. Full card: https://gitnova.dev/en/r/DozenTwelve/Papermorph.md --- 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 2026-10-18 13:59 UTC, updated every 30 minutes.