Software Engineer at Ultraviolettehttps://kushalpatil.in/https://kushalpatil.in/posts/architecting-an-on-premise-voice-ai-system/https://kushalpatil.in/posts/architecting-an-on-premise-voice-ai-system/What if your voice AI was private, modular, deterministic wherever possible, and generative wherever necessary?Thu, 05 Mar 2026 00:00:00 GMThttps://kushalpatil.in/posts/bloom-filters/https://kushalpatil.in/posts/bloom-filters/Because sometimes being probably right is better than definitely slow.Tue, 31 Mar 2026 00:00:00 GMThttps://kushalpatil.in/posts/building-a-voice-ai-backend-speech-to-text/https://kushalpatil.in/posts/building-a-voice-ai-backend-speech-to-text/How I turned OpenAI's Whisper into a solid, ready-to-use web service and what went wrong along the way.Thu, 12 Mar 2026 00:00:00 GMThttps://kushalpatil.in/posts/network-address-translation-nat/https://kushalpatil.in/posts/network-address-translation-nat/The quiet trick that kept the internet alive when the world ran out of addresses.Thu, 14 May 2026 00:00:00 GMThttps://kushalpatil.in/posts/one-structural-change-that-cuts-rust-lambda-cost/https://kushalpatil.in/posts/one-structural-change-that-cuts-rust-lambda-cost/You're not losing time in your business logic, you're losing it before it even starts.Tue, 10 Mar 2026 00:00:00 GMThttps://kushalpatil.in/posts/schelling-focal-points/https://kushalpatil.in/posts/schelling-focal-points/The most powerful rules in your workplace are the ones that were never written.Tue, 05 May 2026 00:00:00 GMThttps://kushalpatil.in/posts/strumming-towards-happiness/https://kushalpatil.in/posts/strumming-towards-happiness/My first month with Guitar — what I learned, what surprised me, and why it matters.Sun, 15 Mar 2026 00:00:00 GMThttps://kushalpatil.in/posts/the-art-of-staying-still-nash-equilibrium/https://kushalpatil.in/posts/the-art-of-staying-still-nash-equilibrium/What your dating life and a salary negotiation have in common — and why no one dares to change their mind.Thu, 30 Apr 2026 00:00:00 GMThttps://kushalpatil.in/posts/the-art-of-talking-to-a-server/https://kushalpatil.in/posts/the-art-of-talking-to-a-server/From the humble request-response cycle to full-duplex real-time streams.Wed, 13 May 2026 00:00:00 GMThttps://kushalpatil.in/posts/the-ralph-loop/https://kushalpatil.in/posts/the-ralph-loop/A single bash loop that lets AI agents retry until they get it right — no more manual back-and-forth debugging.Tue, 26 May 2026 00:00:00 GMThttps://kushalpatil.in/posts/the-secret-handshake-the-internet-runs-on/https://kushalpatil.in/posts/the-secret-handshake-the-internet-runs-on/How do strangers agree on a shared secret without ever whispering it to each other? The story of Diffie-Hellman key exchange.Mon, 09 Mar 2026 00:00:00 GMThttps://kushalpatil.in/posts/three-lines-that-shrunk-my-rust-lambda-by-8mb/https://kushalpatil.in/posts/three-lines-that-shrunk-my-rust-lambda-by-8mb/Three Cargo.toml settings that reduced my Rust Lambda binary by 8MB and cut cold start latency.Fri, 19 Jun 2026 00:00:00 GMThttps://kushalpatil.in/posts/two-servers-one-network-cable-just-snapped/https://kushalpatil.in/posts/two-servers-one-network-cable-just-snapped/What does your database do next? The CAP Theorem explains the unavoidable tradeoff every distributed system must make.Wed, 01 Apr 2026 00:00:00 GMThttps://kushalpatil.in/posts/vector-embeddings/https://kushalpatil.in/posts/vector-embeddings/Ever wondered how LLMs understand what you mean, not just what you type…Wed, 25 Feb 2026 00:00:00 GMThttps://kushalpatil.in/posts/your-brain-has-a-friend-limit/https://kushalpatil.in/posts/your-brain-has-a-friend-limit/Robin Dunbar's research shows the human brain is wired to manage ~150 relationships — and every layer beyond that is just noise it politely tolerates.Thu, 18 Jun 2026 00:00:00 GMT