About Sam Sweeley
Network engineer by day, tool builder by night. I create free, open educational tools for the IT and healthcare communities.
What I build:
🔬 Network Simulator — interactive topology builder with OSI layers, packet tracing, 19 device types, physical layer constraints, and build-your-own mode. Used by homelab enthusiasts and CCNA students.
📖 Network Fundamentals Guide — 35 from-scratch reference graphics covering everything from subnetting to BGP path selection. No paywalls, no sign-ups.
🩺 T1D Simulator — a Type 1 Diabetes management simulator with kid-friendly and clinician modes. Teaches what it's really like to manage blood sugar 24/7. Built so nurses, teachers, and families can understand T1D.
⚡ Spark — daily puzzle game.
Everything is free. No ads. No tracking. No paywall. A coffee helps keep the servers running and the tools improving.
Where to find the tools:
learn.n3olabs.com
What I build:
🔬 Network Simulator — interactive topology builder with OSI layers, packet tracing, 19 device types, physical layer constraints, and build-your-own mode. Used by homelab enthusiasts and CCNA students.
📖 Network Fundamentals Guide — 35 from-scratch reference graphics covering everything from subnetting to BGP path selection. No paywalls, no sign-ups.
🩺 T1D Simulator — a Type 1 Diabetes management simulator with kid-friendly and clinician modes. Teaches what it's really like to manage blood sugar 24/7. Built so nurses, teachers, and families can understand T1D.
⚡ Spark — daily puzzle game.
Everything is free. No ads. No tracking. No paywall. A coffee helps keep the servers running and the tools improving.
Where to find the tools:
learn.n3olabs.com
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