# MysticGSI/mysticgsi > A tool that builds a Generic System Image (GSI) from stock Android firmware of many vendors: OTA zips, fastboot packages, super.img, Samsung tars, Huawei UPDATE.APP and more. - Magnitude: 5.2 out of 10 — Early signal - Stars: 107 total · +55 stars today, ≈ 86 by evening - Star trust: star growth looks organic - Category: Developer tools · Language: Shell · License: Apache-2.0 · Created: 2026-09-25 · Last push: 2026-09-26 - GitHub: https://github.com/MysticGSI/mysticgsi · Page: https://gitnova.dev/en/r/MysticGSI/mysticgsi ## Useful for - Build a GSI from a Pixel factory image with the pixel patch set and pack it as a ZIP - Rebuild a finished image after removing apps from the system tree without a full rebuild - Sign the built image with your own RSA key via --avb-key instead of AOSP's test key ## Why it’s here - 55 stars so far today, about 86 expected by the end of the day. - The spike has held for 2 days in a row — not a one-off blip. - The repository is 1 day old and already has 107 stars. With less than two weeks of history, there's no usual pace to compare the spike against yet. - Top new repositories this week: #128. - About 45 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: 39 - Issues and pull requests: 19 - Watchers: 4 - Average over the last week: 70 per day - Usual pace: too little history (under two weeks) - Stars in the last hour (measured): 19 ## Stars per day, last 7 days (oldest → newest, today is partial) 2026-09-20 … 2026-09-26: 0, 0, 0, 0, 0, 55, 55 ## Spotted in now - Top new repositories this week: #128 ## More in this category 1. **devdotfast/whiteboard** — 7.6 · Early signal · Developer tools · TypeScript · +106 stars today, ≈ 257 by evening An open-source desktop IDE for software design where humans and coding agents share a canvas: the agent draws diagrams you can jump from straight into code. Full card: https://gitnova.dev/en/r/devdotfast/whiteboard.md 2. **git-bug/git-bug** — 7.2 · Breakout · Developer tools · Go · +34 stars today, ≈ 117 by evening A distributed, offline-first bug tracker embedded in git: issues live inside the repository, work offline and sync through normal git remotes. It ships a CLI, terminal and web UI, plus bridges to GitHub, GitLab, Jira and Launchpad. Full card: https://gitnova.dev/en/r/git-bug/git-bug.md 3. **dream-num/univer** — 7.0 · Breakout · Developer tools · TypeScript · +196 stars today, ≈ 408 by evening Open-source TypeScript SDK for embedding spreadsheet, document, and presentation editors into your own product, with a plugin architecture, Canvas rendering, a formula engine, and one Facade API for browser and Node.js. Suited for SaaS,… Full card: https://gitnova.dev/en/r/dream-num/univer.md 4. **ashleydarosa/CC-Checker-Validator-Generator** — 5.4 · Early signal · Developer tools · Python · +0 stars today, ≈ 18 by evening Python CLI toolkit for payment QA: generates synthetic Luhn-valid card numbers by brand, BIN, or pattern and validates them, including BIN/IIN lookup, expiry and CVV checks. Works offline, supports bulk validation and TXT/CSV/JSON export. Full card: https://gitnova.dev/en/r/ashleydarosa/CC-Checker-Validator-Generator.md 5. **leter/zh-tech-writing** — 5.1 · Early signal · Developer tools · +37 stars today, ≈ 71 by evening An Agent Skill for writing Chinese technical documentation based on Ruan Yifeng's style guide: short sentences, plain tone, no AI-speak. Works with Claude Code and other tools supporting Agent Skills. Full card: https://gitnova.dev/en/r/leter/zh-tech-writing.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 2026-09-26 14:28 UTC, updated every 30 minutes.