Lee Zimbelman — Notes from the stack

Twenty years of curiosity, pointed at the infrastructure.

I'm Lee Zimbelman. For 20+ years I've been pulling apart networks, servers, and software for fun — and occasionally for work. This is where I keep notes on what I'm building, running, and breaking at the moment. Cross-platform (Windows, Linux, macOS, iOS), hybrid identity, Ubiquiti everywhere, and a lot of PowerShell.

Entra ID / Active Directory Windows · Linux · macOS · iOS Hyper-V Ubiquiti · UniFi · UISP Microsoft SQL Server Cloud PBX · Twilio · SendGrid PowerShell Claude · ChatGPT Ollama · Open WebUI · OpenClaw GitHub · VS Code ffmpeg · Pi-hole Bitwarden

2026 · 04

Conditional Access without the MFA fatigue A reference design that keeps users productive and the audit log happy.

Identity

2026 · 03

One Caddyfile, every service, real certs Replacing three reverse proxies and a nest of Let's Encrypt cron jobs with one file.

Self-host

2026 · 02

Site-to-site tunnels with UniFi & UISP A repeatable pattern with sane VLAN defaults, failover, and monitoring baked in.

Network

2026 · 04

Running Ollama + Open WebUI on a boring old PC A practical local LLM setup for drafting, summarization, and scripting help — no cloud bill.

2025 · 11

Hyper-V checkpoints, replicas, and the backup you can actually restore What to verify before you need it at 2am — with a MSSQL-aware twist.

Hyper-V

2025 · 08

Inventory that updates itself — a PowerShell module I actually run One scheduled script pulls every Windows endpoint into a single CSV. No spreadsheet, no chasing techs, no "as of last quarter."

Automation

Twenty years of curiosity, pointed at the infrastructure.

01 Recent Projects

02 Stack & Homelab

Identity & Endpoint

Network & Voice

Platform & Compute

Automation & Tooling

03 Tools I Reach For

Shell, Editor & OS

Network, Identity & Voice

Self-hosted Services

Security & Hygiene

04 Writing

Got something running sideways?