Ahmad D.

Algorithms by Jeff Erickson - one of the best algorithm books out there. The illustrations make complex concepts surprisingly easy to follow. Highly recommend this. jeffe.cs.illinois.edu/teaching/algor…

System Design Roadmap │ ├── 1. Introduction to System Design │ ├── What system design is │ ├── Importance in real-world applications │ └── Key goals: scalability, reliability, performance │ ├── 2. Fundamental Concepts │ ├── Networking basics (HTTP, HTTPS, DNS) │ ├── Client-server architecture │ └── Latency vs throughput │ ├── 3. Databases & Storage │ ├── SQL vs NoSQL │ ├── Data modeling │ ├── Indexing │ └── Replication and sharding │ ├── 4. Scalability Principles │ ├── Vertical scaling │ ├── Horizontal scaling │ └── Load distribution │ ├── 5. System Components │ ├── Load balancers │ ├── Application servers │ ├── Databases │ ├── Cache (Redis, Memcached) │ └── CDN │ ├── 6. Caching Strategies │ ├── Client-side caching │ ├── Server-side caching │ └── Cache invalidation │ ├── 7. Distributed Systems │ ├── CAP theorem │ ├── Consistency models │ ├── Fault tolerance │ └── Consensus basics │ ├── 8. API Design │ ├── RESTful APIs │ ├── Rate limiting │ └── Authentication & authorization │ ├── 9. Message Queues & Async Systems │ ├── Event-driven architecture │ ├── Queues (Kafka, RabbitMQ) │ └── Background processing │ ├── 10. Designing Real Systems │ ├── URL shortener │ ├── Chat system │ ├── File storage system │ └── News feed system │ ├── 11. Monitoring & Reliability │ ├── Logging │ ├── Metrics and alerts │ └── High availability │ └── 12. Interview Strategy ├── Clarify requirements ├── High-level design first ├── Deep dive into components └── Discuss trade-offs →Grab the System Design Roadmap Handbook → codewithdhanian.gumroad.com/l/urcjee

Machine Learning Algorithms Cheatsheet Image Credit- GenAI Works

Visual guide to master Claude Code github.com/luongnv89/clau…

Roadmap: Understanding GPU Architecture from Cornell cvw.cac.cornell.edu/gpu-architectu…

Announcing skillgrade - the easiest way to evaluate your agent skills All you need is two commands: skillgrade init # create evals skillgrade # run them By default evals run in a safe sandboxed docker container github.com/mgechev/skillg…

لقيت مقبرة للشركات الناشئة اتوقع إنها مفيدة جدًا. موقع Startups.RIP جمع أكثر من 5700 ستارتاب فشلوا من مسرّع الشركات الشهير Y Combinator. الفكرة بدل ما تتعلم فقط من قصص النجاح، تتعلم من أخطاء الآخرين. كل مشروع في الموقع فيه تحليل واضح: ايش كانت فكرة المشروع لماذا فشل الأخطاء التي ارتكبها المؤسسون ماذا كان يمكن فعله بشكل مختلف يعني قاعدة بيانات لأخطاء الستارتابات. تقدر تفتح أي مشروع وتشوف: • الفكرة الأصلية • لماذا لم تنجح • كيف يمكن تعديلها ومحاولة تنفيذها مرة أخرى أكثر جزء مثير هو خطط إعادة الإطلاق. الموقع يقترح أحيانًا كيف يمكن إحياء فكرة قديمة وتحويلها إلى مشروع جديد. مفيد حتى لو ما كنت رائد أعمال: أحيانًا تكتشف أن أفكارًا ممتازة ماتت بسبب تنفيذ سيئ وأحيانًا العكس تمامًا. أما لو كنت تفكر تبني ستارتاب فهذا المكان تقريبًا مختبر أخطاء جاهز تتعلم منه

Deep learning for network engineers 👀

A Claude Code skill that decompiles Android APK and AAR files and extracts the HTTP APIs used by the app. Scary. github.com/SimoneAvogadro…

Andrej Karpathy on neural nets. loss functions, backprop, gradient descent.

SOMEONE CREATED A GITHUB REPO WITH AN ENTIRE SETUP FOR AN AI AGENCY Engineers, designers, growth marketers, product managers. Broken down how even a rookie could understand. It has over 10K stars in 7 days GitHub: github.com/msitarzewski/a…

Top 5 Caching Strategies You Should Know: 1. 𝐑𝐞𝐚𝐝 𝐓𝐡𝐫𝐨𝐮𝐠𝐡: The application checks the cache first. On a cache miss, the cache itself fetches data from the DB, stores it, and returns it to the application. Best for read-heavy apps like CDNs and social feeds. 2. 𝐖𝐫𝐢𝐭𝐞 𝐓𝐡𝐫𝐨𝐮𝐠𝐡: Every write updates both the cache and DB at the same time. Ensures cache always stays fresh. Best for systems needing strong consistency (e.g., finance apps). 3. 𝐂𝐚𝐜𝐡𝐞 𝐀𝐬𝐢𝐝𝐞 (𝐋𝐚𝐳𝐲 𝐋𝐨𝐚𝐝𝐢𝐧𝐠): The app looks in the cache first. On a miss, it fetches from the DB and explicitly updates the cache. Best for read-heavy workloads where slight data staleness is okay. 4. 𝐖𝐫𝐢𝐭𝐞 𝐀𝐫𝐨𝐮𝐧𝐝: Writes go straight to the DB, skipping the cache. Cache gets updated only on a read. Best for write-heavy systems with rare immediate reads (e.g., logging, analytics). 5. 𝐖𝐫𝐢𝐭𝐞 𝐁𝐚𝐜𝐤: Writes go to the cache first, and are asynchronously persisted to the DB later. Minimizes write latency. Best for high-performance, write-heavy systems. Which of these caching strategies have you used in production? Let me know in the comments. ♻️ Repost to help others in your network

Obsidian Sync now has a headless client, so you can sync vaults to a server without using the desktop app. Try the open beta:

I keep coming back to this gem - a timeless and foundational book still having a deep impact.

30 Blogs to Learn 30 System Design Concepts: 1. Scalability: algomaster.io/learn/system-d… 2. Availability: algomaster.io/learn/system-d… 3. Consistent Hashing: algomaster.io/learn/system-d… 4. CAP Theorem: algomaster.io/learn/system-d… 5. TCP vs UDP: algomaster.io/learn/system-d… 6. DNS: blog.algomaster.io/p/how-dns-actu… 7. Proxy vs Reverse Proxy: algomaster.io/learn/system-d… 8. Load Balancing Algorithms: blog.algomaster.io/p/load-balanci… 9. APIs: algomaster.io/learn/system-d… 10. API Gateways: algomaster.io/learn/system-d… 11. Rate Limiting: blog.algomaster.io/p/rate-limitin… 12. JWT: algomaster.io/learn/system-d… 13. WebSockets: algomaster.io/learn/system-d… 14. Webhooks: algomaster.io/learn/system-d… 15. Message Queues: algomaster.io/learn/system-d… 16. Change Data Capture (CDC): algomaster.io/learn/system-d… 17. Caching Strategies: algomaster.io/learn/system-d… 18. Content Delivery Network (CDN): algomaster.io/learn/system-d… 19. Database Types: algomaster.io/learn/system-d… 20. ACID Transactions: algomaster.io/learn/system-d… 21. Indexing: algomaster.io/learn/system-d… 22. Sharding: algomaster.io/learn/system-d… 23. Block vs File vs Object Storage: algomaster.io/learn/system-d… 24. Strong vs Eventual Consistency: algomaster.io/learn/system-d… 25. Service Discovery: algomaster.io/learn/system-d… 26. Batch vs Stream Processing: algomaster.io/learn/system-d… 27. Observability: algomaster.io/learn/system-d… 28. Authentication & Authorization: algomaster.io/learn/system-d… 29. Idempotency: algomaster.io/learn/system-d… 30. GeoHashing: blog.algomaster.io/p/geohashing ♻️ Repost to help others in your network.

Linux file permissions for beginners

The Low Byte Productions has some of the amazing explainer videos; subscribe! youtu.be/KkenLT8S9Hs

Personal knowledge management system with AI agents and hooks github.com/ballred/obsidi…