This is my collection of high-level designs of software architectures which I have worked on in my orgs or explored otherwise!

Index	Topic	Link	Status	Articles/Videos
0	Networking+Protocols		✔️	TCP vs UDP OSI, TCP/IP TLS Playlist WebRTC vs HLS & specific use cases gRPC via HTTPS2 QUIC/HTTP3 Fixing backend postgres connection leaks Connection Pools
1	Kubernetes Architecture		✅
2	Kubernetes Sidecar Architecture
3	Kafka Architecture		✅	• Lessons learned form Kafka in production • Transactional Outbox Pattern • Confluent Kafka 101 • Exactly once semantics with Matthias J. Sax
4	Load Balancer		Todo	Envoy
5	Telegram	Link	✅
6	Streaming Service + Live Streaming e.g. HotStar	Link	✅
7	Distributed Concurrency	1. a) Distributed Concurrency: OCC PCC Part1 2. Using CAS style atomic operation if your DB supports it. Systems like Cassandra supports it. 3. Serializing the request using queues that makes sure only one of those requests would succeed. CockroachDB uses similar mechanism internally that lets only one transaction win. 4. Using a distributed locking system like Redis, but this is over engineering for most cases.		Udemy Hussein Nasser
8	Payment System: • Internal payment system of any e-commerce • PSP e.g Razorpay or juspay • UPI • Bank Payment Settlement	Internal Payment System of Company	Todo	Possible Interview Question
9	Software Architecture Patterns: Application Code	Read & Make Notes	Todo
10	Scaling for Millions of Request per second		Todo	Understand and research for multiple scenarios and common use cases for interviews
11	Design Search System • Real Time Recommendation Based Search & Homepage catalogue • TypeAhead Search System Design • IM Search Design	Real Time Recommendation Based Search & Homepage catalogue - Notes	In-Progress