# santtiago49/system-design-trainer > A trainer for system design interviews: a whiteboard with draggable AWS/Azure components, a deterministic capacity model, and design grading by an AI assistant called Jev. - Magnitude: 4.8 out of 10 — Early signal - Stars: 88 total · +89 stars today - Star trust: star growth looks organic - Category: Learning & lists · Language: TypeScript · Created: 2026-09-28 · Last push: 2026-09-28 - GitHub: https://github.com/santtiago49/system-design-trainer · Page: https://gitnova.dev/en/r/santtiago49/system-design-trainer ## Useful for - Work through levels and build an architecture for a given user count - Check a design for SPOFs, missing load balancers, and direct DB access - Add a custom scenario in lib/scenarios.ts and practice on it ## Why it’s here - 89 stars today. - The repository is 0 days old and already has 88 stars. With less than two weeks of history, there's no usual pace to compare the spike against yet. - Top new repositories this week: #187. ## 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: 4 - Issues and pull requests: 0 - Watchers: 0 - Average over the last week: 96 per day - Usual pace: too little history (under two weeks) - Stars in the last hour (measured): 2 ## Stars per day, last 2 days (oldest → newest, today is partial) 2026-09-27 … 2026-09-28: 0, 89 ## Spotted in now - Top new repositories this week: #187 ## More in this category 1. **cdyforever/how-to-live-better** — 7.5 · Breakout · Learning & lists · HTML · +919 stars today A single-file HTML reading page for the open book "High Cost-Performance Life Guide" — 528 tips across 32 sections, searchable, offline-capable, zero dependencies. Full card: https://gitnova.dev/en/r/cdyforever/how-to-live-better.md 2. **cs341-illinois/coursebook** — 6.4 · Breakout · Learning & lists · TeX · +305 stars today 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. Full card: https://gitnova.dev/en/r/cs341-illinois/coursebook.md 3. **rohitg00/ai-engineering-from-scratch** — 5.8 · Breakout · Learning & lists · Python · +611 stars today Open-source AI engineering curriculum: 523 lessons across 20 phases (~342 hours) in Python, TypeScript, Rust and Julia, where every lesson ships a reusable artifact such as a prompt, skill, agent or MCP server. Full card: https://gitnova.dev/en/r/rohitg00/ai-engineering-from-scratch.md 4. **byoungd/up** — 4.7 · Breakout · Learning & lists · JavaScript · +401 stars today An open book-guide on lifelong learning in the AI era: English, working with AI, real projects, recovering from setbacks. For ordinary people seeking direction. Full card: https://gitnova.dev/en/r/byoungd/up.md 5. **public-apis/public-apis** — 4.2 · Steady · Learning & lists · Python · +208 stars today A community-curated list of free public APIs across dozens of categories, from animals and anime to finance, geocoding and weather. Aimed at developers looking for a ready-made API for a prototype or product. Full card: https://gitnova.dev/en/r/public-apis/public-apis.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 2026-09-28 22:05 UTC, updated every 30 minutes.