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Alexa Amundson ec7b1445b5 kpi: auto-update metrics 2026-03-13

RoadChain-SHA2048: c645c1292ab1555e
RoadChain-Identity: alexa@sovereign
RoadChain-Full: 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

2026-03-13 23:16:12 -05:00

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Raw Blame History

Alexa Amundson

Infrastructure Engineer

amundsonalexa@gmail.com | github.com/blackboxprogramming

Summary

Built a production fleet from single-board computers. 5 Raspberry Pis, 2 cloud VMs, 52 TOPS of AI acceleration, 707 GB distributed storage — proving that serious infrastructure doesn't require serious budgets.

Experience

BlackRoad OS | Founder & Infrastructure Engineer | 2025–Present

The Thesis: Commodity Hardware, Production Workloads

A Raspberry Pi 5 costs $80. A Hailo-8 NPU costs $100. Together they deliver 26 TOPS of AI inference with 8 GB RAM
Built a 7-node fleet for under $700 total hardware cost — runs 256 systemd services, 14 Docker containers, 27 AI models, 48 Nginx sites
Same fleet handles production traffic across 48+ domains serving real users through Cloudflare tunnels

The Hard Part: Power, Heat, and Storage

Pi 5 + Hailo-8 + NVMe draws more than a standard 5V/3A PSU can deliver — diagnosed undervoltage (0.75V), tuned config.txt, recovered +95mV
Reduced GPU memory 256MB to 16MB on headless nodes. Applied conservative CPU governors. Disabled 16 skeleton microservices — freed 800 MB RAM
Fleet averages 42°C now. Power monitoring runs every 5 minutes on all nodes, logging voltage, throttle state, and governor

The Network: Every Node Reachable, Every Path Encrypted

WireGuard mesh VPN (10.8.0.x) connects all nodes. RoadNet WiFi mesh (5 APs, 5 subnets) provides local coverage
4 Cloudflare tunnels route 48+ domains to fleet services. Tailscale overlay (9 peers) for remote management

Technical Skills

Raspberry Pi, Linux, WireGuard, Nginx, systemd, Docker Swarm, Hailo-8, NVMe

Metrics

Metric	Value	Source
Fleet Nodes	live	fleet.sh — SSH probe to all nodes
Nodes Online	live	fleet.sh — SSH probe to all nodes
Fleet Storage (GB)	live	fleet.sh — df via SSH
Fleet RAM (MB)	live	fleet.sh — /proc/meminfo via SSH
Systemd Services	live	services.sh — systemctl list-units via SSH
Nginx Sites	live	services.sh — /etc/nginx/sites-enabled via SSH

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