Mat
Ryer

Before most of the internet knew what Go was, Mat Ryer was already building with it. The year was somewhere around 2011, Go's v1 release was still months away, and the language still had os.Error instead of the interface we know today. Mat didn't mind. He had found something elegant - a language that was simple enough to hold in your head and fast enough to mean it. He has been writing it ever since.

Today he is Engineering Director at Grafana Labs, building AI agents that help developers make sense of their systems at scale. It is a long way from the Commodore Amiga his father brought home when Mat was six years old - and also, somehow, a very short distance. The obsession is the same. What changed is the scale.

Mat grew up in rural Nottinghamshire, England, the kind of place where you make your own entertainment. His entertainment was a ZX Spectrum, then an Amiga, then every version of every computer that came after. By the time he was 18 he was already working at a local agency in Mansfield, building websites before most people had one. He moved to London in 2006 - his wife Laurie had accepted a job at the Science Museum - and the city's tech scene never let him leave.

At BT he found something he hadn't expected: the value of working with other people who were genuinely good. The agile practices he picked up there, in a room full of talented engineers and managers, still shape how he thinks about software today. It is not the tool. It is the discipline of thinking clearly, working iteratively, and not making things harder than they need to be.

That philosophy runs through everything Mat touches. His most famous tool, xbar (originally called BitBar), is a macOS menu bar utility that puts the output of any script directly into your toolbar. The idea is almost absurdly simple. The execution is flawless. It has more than 18,000 GitHub stars. The original was written in Objective-C; Mat eventually rewrote it in Go, because of course he did.

His testing tools tell the same story. moq generates Go interface mocks using go generate - clean, correct, no drama. The is framework is described on its own GitHub page as "Professional lightweight testing mini-framework for Go." That word choice - professional, lightweight - is pure Mat Ryer. He does not like ceremony. He does not like boilerplate. He especially does not like code that requires explanation when the code itself could just be clear.

His book, Go Programming Blueprints, published in 2015 and updated in a second edition, became a standard recommendation for developers learning how to build real things with Go. Not toy examples. Not contrived exercises. Real-world patterns for real-world problems. The same year, he co-wrote Go: Building Web Applications with Nathan Kozyra. Between them, the two books covered a lot of the practical territory that the official documentation left for readers to discover on their own.