Necessity is the mother of invention

Fri, 07 Aug 2026 00:00:00 +0000

After posting my earlier project, where I pulled a small, open-source infrastructure out of a hat for a small business that had nothing and now has real infrastructure, some people reached out and started asking questions. One of those turned into a hands-down agreement on a job.

A tight budget and no Windows Domain

One of the people who reached out was a business owner I know personally. They run a small local company with about 10 Windows PCs, a few printers, one NAS, and a lot of sensitive data handled daily. Budget is tight, and the owner has no interest in cloud-based identity services like Azure AD or M365.

SMB Infrastructure

Wed, 22 Jul 2026 00:00:00 +0000

Overview

Two separate small-business engagements, both with essentially zero budget and no existing infrastructure. The first, paid partly in groceries, came first and proved the approach. It spurred the second: a mixed Windows/Linux environment for a second business, built on the same philosophy but with a wider scope.

The problem

Neither business had any of the basics most infrastructure takes for granted: backups that actually restore, visibility into what’s running, secure remote access, or any monitoring at all. Budget in both cases ruled out new hardware or commercial licensing.

Checkmk on polar-node // runbooks

Necessity is the mother of invention

A tight budget and no Windows Domain

SMB Infrastructure

Overview

The problem