K12 Engineer · Chief Technology Officer, Model Communicator

Jim Tyler

Engraved-style portrait of Jim Tyler

K-12 technology leader. CTO of Model Communicator, free AAC for everyone. 2x Microsoft MVP.

K-12 Director of Technology by day. On my own time I build free tools for schools: communication software for people who cannot speak, Chromebook hardening, and plain-language security playbooks that fit a school budget. Every project here is my own.

Key projects

Free tools and guides for schools

Everything here is free. No accounts, no paywalls, no student data. Built on nights and weekends and used by hundreds of thousands of students, teachers and IT staff.

CTO Free AAC · iPad, Chrome, web

Model Communicator

Communicate Freely. A free augmentative and alternative communication system organized by topic, with a consistent sentence-building border on every page. No trial, no account, no paywall: the core language system is free for anyone who needs it.

modelcommunicator.com
658 checks Free security assessment · PowerShell 7

Guerrilla

Security assessment for Active Directory, Entra ID / Microsoft 365 and Google Workspace. 658 checks, each verdict proven by a golden fixture, mapped to NIST, CIS, MITRE ATT&CK and CISA SCuBA. Agentless, read-only, free, CC BY 4.0.

Explore the catalog
Guide · K-12 hardening playbook

Active Directory Security

Admin accounts that cannot be stolen, servers that cannot be reached from a classroom PC, Group Policy that cannot be abused, backups that actually run. Every item says which free scanner catches it, and which ones nothing catches.

Read the guide
Guide · K-12 hardening playbook

Google Workspace Security

District devices only, United States only, maximum data protection, student misuse controls, and AI turned off for student OUs. Every setting with its Admin console path and what it costs.

Read the guide
750K+ users Guide + free Chrome extension

You Shall Not Pass

Keeps proxy sites, filter evasion and tab spam off managed school Chromebooks. The playbook covers Jim's 10 quick hits and the Admin console settings that close the rest, with license and effort for each.

Read the playbook
13K subscribers YouTube

K12Engineer

Practical walkthroughs for school IT: PowerShell, Google Workspace, Active Directory, and security on a school budget. The flagship video, Learn PowerShell in Less Than 2 Hours, has passed 500,000 views.

Watch on YouTube
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Practical PowerShell delivered to your inbox: automation patterns, tool builds, community highlights and real-world solutions from someone who lives in the shell every day.

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Free Chrome extension

TeacherMagic.org

429 AI prompts for 13 K-12 staff roles, connecting educators directly to Gemini, ChatGPT, Claude or Copilot. 106 languages, 170 countries' standards. No accounts, no telemetry, no student data. Also home of You Shall Not Pass.

teachermagic.org
Open standard for AI-written PowerShell

PowerShellEngineer.com

The PowerShell Engineer Standard: an AGENTS.md that teaches AI models to write secure, idiomatic PowerShell, with a benchmark and validator to prove it. The Standard is the product. The model is the demo.

powershellengineer.com

About

Built on nights and weekends

I am a K-12 Director of Technology in southwest Michigan and the Chief Technology Officer of Model Communicator, a free augmentative and alternative communication system for anyone who needs one.

Twenty years in IT, two Microsoft MVP awards for PowerShell, and one book, PowerShell for Systems Engineers, written for admins who need automation that works in production, not a reference manual.

Everything on this site is my own work, built on my own time and my own equipment, and shared because school IT runs on budgets that do not stretch to enterprise anything. The guides are plain-language checklists written so any district can pick them up and use them.

Communication is a right, not a privilege. Model Communicator exists to remove the barriers between a person and the words they need.

The idea behind Model Communicator

Speaking

Field reports, not slide decks

No vendor pitches. Real talk from someone who responds to incidents at 11pm and ships tools on weekends. Every talk comes with a handout you can take back to your district.

  • Midwest Tech Talk 2026 · Keynote

    Zero Trust Security

    Keynote at the Midwest Tech Talk in the Ozarks. Zero Trust as a philosophy, not a product line: what it means for schools and small organizations, where to start, and how far free and open-source tools can take you.

    KeynoteZero TrustK-12
  • MAEDS 2026

    Defense in Depth: layered security approaches that work

    Zero Trust is a philosophy, not a product line. What agentic AI changes about the K-12 attack surface, and the layers that still hold, all on free tools. Handouts: the Google Workspace and Active Directory security playbooks.

    Zero TrustAgentic AIGoogle WorkspaceActive Directory
  • MAEDS 2026

    You Shall Not Pass

    Keeping filter evasion off managed school Chromebooks, said politely, by a Chrome extension. Handout: the Chromebook hardening playbook.

    ChromebooksFilter evasionChrome policy
  • MAEDS 2025

    Guerilla Zero Trust Security

    Implementing Zero Trust on K-12 budgets: practical, resourceful security for districts that cannot afford enterprise solutions but cannot afford to skip security either.

    Zero TrustCybersecurity
  • MAEDS 2024

    Securing Active Directory with PowerShell and Other Tools

    Hands-on AD hardening and auditing with PowerShell: finding vulnerabilities, automating compliance checks, and building a defensible directory.

    Active DirectoryPowerShell
  • MAEDS 2023

    Building Graphical Applications 2.0 with PowerShell · PowerShell AI

    Two sessions: interactive GUI tools with Windows Forms, and integrating OpenAI into PowerShell workflows for K-12 IT administration.

    PowerShellWindows FormsAI

Community

Serving southwest Michigan

Leadership beyond the terminal: school boards, planning commissions, youth sports and arts education in Watervliet, Michigan.

  • 2024 – now

    Treasurer and Audit/Finance Committee Chair

    Watervliet Public Schools Board of Education

  • 2022 – now

    Chairperson, Planning Commission

    City of Watervliet. Chair since 2025, trustee since 2022.

  • 2023 – now

    President, Baseball/Softball Rec Council

    Watervliet Recreation

  • 2024 – 2026

    Former President, Children's Music Workshop

    Arts and music education for kids in southwest Michigan

Contact

Just Jim. No sales funnel.

I answer every email personally. Districts and organizations hire me for Google Workspace and Microsoft 365 hardening, Active Directory security reviews, PowerShell automation, and AAC program implementation. If you just want to pick my brain for 30 minutes, that works too.

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