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jamesmarcusanderson/README.md

Hi, I'm James Anderson

Hardware & systems builder — I take things apart to understand how they work, then build things that work better. Strictly white-hat: I research responsibly and build defensively.

Featured work

BareBoard

Free, open hardware-analysis platform — board-level teardowns, diagnostics guides, and standard operating procedures.

Verum Bespoke Singularity

Multi-GPU LLM inference engine in Objective-C + Metal: custom mmap-backed GGUF loader, runtime-generated MSL kernels for 15 weight encodings, a declarative graph compiler, and a bounded-memory tiled executor.

Haywire

Reproducing the published checkm8 SecureROM dump of the Apple Lightning AV Adapter (S5L8747) — read-only research; failures documented honestly.

Tamarin

Custom Pico SWD/JTAG probe (RP2040 + OpenOCD) bringing up the iPhone X (A11) debug port.

XB3

Board-level analysis of the Xfinity XB3 gateway (Arris TG1682, Intel Puma 6): J3 UART boot log and regulator research.

Apple T2

Apple T2 DFU-mode USB enumeration notes (2020 MacBook Air) — enumeration only, no exploit work.

Smart Battery Case

Apple Smart Battery Case (A2070) debug console + I2C telemetry — read-only research; RDP2 stopped extraction.

What I do

  • Hardware security & reverse engineering — custom JTAG/SWD probe design (Raspberry Pi Pico + OpenOCD), Secure Enclave debug research, firmware analysis
  • Apple internals — Lightning AV adapter checkm8 SecureROM research, Apple T2 DFU-mode enumeration
  • GPU & systems programming — Metal compute, multi-device execution, memory-bounded tiled inference
  • Board-level work — UART debug bring-up and hardware debugging (Xfinity XB3 / Arris platform)

Find me

📍 Houston, TX

Pinned Loading

  1. noc-monitoring-lab noc-monitoring-lab Public

    Prometheus + Grafana NOC monitoring lab: availability, latency and bandwidth alerting with a documented simulated-outage incident report.

    Shell

  2. noc-troubleshooting-runbook noc-troubleshooting-runbook Public

    NOC troubleshooting runbook: 5 common failure scenarios (VLAN, DHCP, DNS, routing, interfaces) with symptoms, diagnosis commands, root cause, fix and verification.

  3. mini-siem-lab mini-siem-lab Public

    Mini-SIEM lab: Graylog syslog collection with searches, alerts and signal-vs-noise analysis for auth failures, flaps, restarts and service errors.

    Python

  4. net-inventory-healthchecks net-inventory-healthchecks Public

    NOC shift tooling: Python inventory health checks (reachability, DNS, ports) plus Ansible config backups -- with safe credential practices.

    Python

  5. tamarin tamarin Public

    iPhone X (A11) debug-port bring-up over SWD with a $4 Pico probe — wiring, scope-verified voltages, OpenOCD configs, session logs

  6. haywire haywire Public

    Reproduced the published checkm8 SecureROM dump of Apple's Lightning AV Adapter (S5L8747) — verified dump, every failure documented. Read-only.