Sarthak V. KumarThoughts and writingshttps://sarthakvk.com/Building Gokey A Key-Value Store on Rafthttps://sarthakvk.com/writings/software/building-gokey-a-key-value-store-on-raft/https://sarthakvk.com/writings/software/building-gokey-a-key-value-store-on-raft/Building a replicated key-value store in Go on HashiCorp's Raft — how SET/DELETE turn into log entries, replicate across nodes, and apply via an FSM.Building NSE tick collector with Zerodha Kite Connecthttps://sarthakvk.com/writings/software/building-nse-tick-collector-with-zerodha-kite-connect/https://sarthakvk.com/writings/software/building-nse-tick-collector-with-zerodha-kite-connect/Building a real-time NSE tick collector with Zerodha Kite Connect — ~9,000 instruments over multiple websockets, batched to Parquet on S3, queried with DuckDB.Designing a scalable fanout servicehttps://sarthakvk.com/writings/software/designing-a-scalable-fanout-service/https://sarthakvk.com/writings/software/designing-a-scalable-fanout-service/Designing a scalable fanout service that decouples event processing from delivery using Kafka, queues, and workers — linearly scalable to millions of recipients.Scaling Acoustic Scene Simulation Pipelinehttps://sarthakvk.com/writings/software/scaling-acoustic-scene-simulation-pipeline/https://sarthakvk.com/writings/software/scaling-acoustic-scene-simulation-pipeline/Building a distributed acoustic scene simulation pipeline for Audio ML — turning 10M scenes (~20 years of CPU and petabytes of audio) into a tractable workflow.