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Achievement: Pair ExtraordinaireAchievement: YOLOAchievement: QuickdrawAchievement: Pull Sharkx3Achievement: Public SponsorAchievement: Arctic Code Vault Contributor

Achievements

Achievement: Pair ExtraordinaireAchievement: YOLOAchievement: QuickdrawAchievement: Pull Sharkx3Achievement: Public SponsorAchievement: Arctic Code Vault Contributor

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johnrichardrinehart/README.md

John Rinehart

I work on Linux systems from cloud build infrastructure down to board bring-up. I like problems that cross infrastructure, operating systems, and hardware.

At Anduril, I owned CI health and execution for a 6,000-person engineering organization running about 40,000 jobs each week. Host and job telemetry reduced failures by 40% across targeted workloads. Improvements to remote Nix builds and caching contributed to more than $10 million in projected annual OpEx savings. I also worked on DeviceOS and hardware-in-the-loop infrastructure for NVIDIA Jetson and NXP i.MX systems.

Selected work

  • forgeproxy: A Rust Git caching proxy with SSH and HTTP transport, bundle-URI, S3 storage, Valkey coordination, Prometheus and OpenTelemetry, FIPS-capable TLS, hardened NixOS deployment, and VM integration tests.
  • rock5c-nixos: Reusable NixOS board support for the ARM64 Radxa ROCK 5C, including U-Boot, Device Tree overlays, images and flash tooling, Rockchip media support, and Wi-Fi and Bluetooth.
  • Neocache: A Nix binary-cache platform built with Rust, Kubernetes, PostgreSQL, and object storage.
  • repo-manager: Rust tooling for Git repository placement, lineage, worktrees, forge integration, and lifecycle management.
  • display-layout: A focused display-layout utility written in C with a backend-neutral model and niri/Wayland integration.
  • Nix for Embedded Folks: An interactive guide to using Nix and NixOS as a reproducible meta-build system for embedded teams.

Open source

I have authored 27 merged pull requests across Nix and Nixpkgs. The work includes C++ fixes and performance improvements, package maintenance, build and dependency fixes, and NixOS image and module options.

Tools and technologies

  • Cloud and platform: Linux, Nix/NixOS, Kubernetes/k3s, Helm, Terraform, CI/CD, systemd, AWS, Azure, OCI, PostgreSQL, S3, Valkey/Redis, Prometheus, and OpenTelemetry
  • Embedded and edge: Embedded Linux, BSP integration, Device Tree, U-Boot, Yocto/BitBake, ARM64, NVIDIA Jetson, NXP i.MX, Rockchip, driver integration, and HIL validation
  • Languages: Rust, Go, Python, Nix, C, C++, and Bash

LinkedIn | Neocache

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  1. forgeproxy forgeproxy Public

    Git caching reverse proxy with bundle-uri support for GitHub Enterprise, GitLab, and Gitea/Forgejo

    Rust 4

  2. rock5c-nixos rock5c-nixos Public

    NixOS support for the Rock 5C SBC

    Nix

  3. repo-manager repo-manager Public

    Opinionated repository placement and lifecycle manager

    Rust

  4. display-layout display-layout Public

    A focused, backend-extensible display layout editor

    C

  5. ci-pillars ci-pillars Public

    A document outlining important considerations for a healthy CI system which is able to serve a large engineering organization (100+ engineers)

    1 1

  6. nix-for-embedded-folks nix-for-embedded-folks Public

    Interactive guide to Nix/NixOS as a reproducible meta-build system for embedded Linux teams

    Vue