I'm Mark McDow (N4TEK), a licensed ham radio operator and independent IT professional based in Gainesville, FL. I publish open-source software, PowerShell scripts, and technical documentation on GitHub across two communities I care about: amateur radio operators and Windows sysadmins.
For ham radio operators:

ShackAudio — a free Windows utility that shows your USB audio device and COM port assignments at a glance, and switches between normal and radio audio profiles in one click. Built for FT8, Vara, JS8Call, and Fldigi operators. Especially useful for EmComm deployments.
Ham Shack Timekeeping — a technical guide and PowerShell utilities covering NTP, GPS timing, UTC, clock drift, and rig-specific setup for the IC-7300, FT-991A, and TS-590SG.

For Windows sysadmins and IT pros:

Windows Files & Folders — a practical reference guide covering Windows file system concepts, folder structures, permissions, and management techniques.
IT Admin Testing Toolkit — scripts and references for helpdesk through engineer-level Windows administration.
PowerShell scripts — tools for RMM integration, BitLocker management, log parsing, and more.

Sponsorships keep all of this free and publicly available, fund new tools and documentation, and help me dedicate time to projects that don't have a paid tier — especially EmComm-focused work that I believe should always be free.
Whether you're a ham who's finally found the right COM port, or a sysadmin who grabbed a script that saved you an hour — a sponsorship is a great way to say thanks and keep the work going.