π¨ Meta is adding FIFA World Cup features β½ π
πΈ Instagram gets a football hub
π Facebook gets Football Mode
π¬ WhatsApp gets football-themed effects & stickers
π World Cup fever is starting already.
π¨ WhatsApp is getting scheduled messagesπ
β° Send messages at a specific date & time
π₯ Works in personal & group chats
ποΈ Delete scheduled messages before they're sent
π₯ No more forgetting birthday wishes.
50 System Design Topics β Simple to Complex
Perfect Learning Roadmap for 2026. Save this list.
1. Design a Rate Limiter
2. Design a URL Shortener
3. Design Pastebin
4. Design a Unique ID Generator
5. Design Consistent Hashing
6. Design a Load Balancer
7. Design an API Gateway
45. Design a Real-time Multiplayer Game Backend
46. Design Machine Learning Model Serving Infrastructure
47. Design a Geo-distributed Low-Latency System
48. Design a Strongly Consistent Global Database
49. Design a High-Frequency Trading Platform
39. Design a Stock Trading/Exchange System
40. Design a Distributed Job Scheduler
41. Design Event Sourcing + CQRS Architecture
42. Design a Multi-tenant SaaS Platform
43. Design Live Video Streaming at Scale
44. Design a Highly Scalable NoSQL Database
33. Design a Search Engine (indexing + querying)
34. Design Google Maps (routing + location services)
35. Design a Distributed Database
36. Design a Real-time Analytics System
37. Design an Ad Serving & Tracking System
38. Design a Fraud Detection System
8. Design a Basic Key-Value Store
9. Design a Caching System (e.g., LRU Cache)
10. Design a Notification System
11. Design a Typeahead/Autocomplete System
12. Design a Web Crawler
13. Design a Message Queue
14. Design a 1:1 Chat System
15. Design a Group Chat System
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And which one are you trying first? Drop it below π
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