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writing by shubham

Notes from building and breaking things in production—mostly systems, infrastructure, containers, performance, and whatever took longer to understand than it should have.

  1. Muse Spark 1.1 Replaced Claude Sonnet 4.6 for Me

    A personal evaluation of Muse Spark 1.1 for tool-driven inference and DevOps work, using the CommandCode harness.

  2. Notes on Building a WebRTC SFU in Rust

    Architecture notes on media routing, renegotiation, jitter estimation, bounded recording, and the limits of an SFU prototype.

  3. A Jenkins Pipeline That Can Fail Safely

    A practical Jenkins pipeline built around immutable artifacts, bounded credentials, explicit promotion, and rollback evidence.

  4. Choosing a Container Base Image Without Guessing

    A current, measurement-first guide to Alpine, Debian slim, Distroless, and Bun container images.

  5. Rebuilding UltraBalancer in Rust: What the Benchmark Actually Proves

    The current UltraBalancer architecture, its published 500K+ RPS benchmark, and the limits behind that number.