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Alexa Amundson
ec7b1445b5
RoadChain-SHA2048: c645c1292ab1555e RoadChain-Identity: alexa@sovereign RoadChain-Full: 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
51 lines
2.2 KiB
Markdown
51 lines
2.2 KiB
Markdown
# Alexa Amundson
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**Infrastructure Engineer**
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amundsonalexa@gmail.com | [github.com/blackboxprogramming](https://github.com/blackboxprogramming)
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---
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## Summary
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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.
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---
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## Experience
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### BlackRoad OS | Founder & Infrastructure Engineer | 2025–Present
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**The Thesis: Commodity Hardware, Production Workloads**
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- A Raspberry Pi 5 costs $80. A Hailo-8 NPU costs $100. Together they deliver 26 TOPS of AI inference with 8 GB RAM
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- Built a 7-node fleet for under $700 total hardware cost — runs 256 systemd services, 14 Docker containers, 27 AI models, 48 Nginx sites
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- Same fleet handles production traffic across 48+ domains serving real users through Cloudflare tunnels
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**The Hard Part: Power, Heat, and Storage**
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- Pi 5 + Hailo-8 + NVMe draws more than a standard 5V/3A PSU can deliver — diagnosed undervoltage (0.75V), tuned config.txt, recovered +95mV
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- Reduced GPU memory 256MB to 16MB on headless nodes. Applied conservative CPU governors. Disabled 16 skeleton microservices — freed 800 MB RAM
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- Fleet averages 42°C now. Power monitoring runs every 5 minutes on all nodes, logging voltage, throttle state, and governor
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**The Network: Every Node Reachable, Every Path Encrypted**
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- WireGuard mesh VPN (10.8.0.x) connects all nodes. RoadNet WiFi mesh (5 APs, 5 subnets) provides local coverage
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- 4 Cloudflare tunnels route 48+ domains to fleet services. Tailscale overlay (9 peers) for remote management
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---
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## Technical Skills
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Raspberry Pi, Linux, WireGuard, Nginx, systemd, Docker Swarm, Hailo-8, NVMe
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---
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## Metrics
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| Metric | Value | Source |
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|--------|-------|--------|
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| Fleet Nodes | *live* | fleet.sh — SSH probe to all nodes |
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| Nodes Online | *live* | fleet.sh — SSH probe to all nodes |
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| Fleet Storage (GB) | *live* | fleet.sh — df via SSH |
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| Fleet RAM (MB) | *live* | fleet.sh — /proc/meminfo via SSH |
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| Systemd Services | *live* | services.sh — systemctl list-units via SSH |
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| Nginx Sites | *live* | services.sh — /etc/nginx/sites-enabled via SSH |
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