American founder, designer and software developer
Mack Myers is an American founder, designer and software developer based in Columbus, Ohio. He co-founded Pieces, an always-on AI memory company, with Tsavo Knott. He served as Chief Product Officer and Chief Operating Officer from incorporation in 2020 until the company wound down in 2026.
At Pieces he led client engineering for the desktop application and owned the shared module architecture its plugins were built on. He was the largest single contributor to the flagship app, and ran the company's administrative operations alongside it. He and Knott had founded Mesh, a collaboration tool for higher education, which ran from 2016 to 2019.
Mack grew up in Chagrin Falls, Ohio, east of Cleveland, between an older and a younger sister. His father is an entrepreneur who builds custom luxury homes. His mother is a horticulturist. He graduated from Chagrin Falls High School in 2012.
Most of his youth went into competitive hockey, age four to eighteen, near the highest levels available then: Geauga Youth Hockey, Team Ohio, North Coast Hockey Development and Chagrin Falls High School.
Fourteen years of that is where he learned to work with people: teamwork, reading a room, leading without a title, and the discipline of showing up when it is cold and early. The parallels still turn up in how he talks about business.
Mack started at Miami University in biochemistry, interested in a career as a radiologist. The appeal was the visual nature of the job. He thinks in images and structures, so reading a body from a scan felt like a natural use of that.
It did not hold. He was strong at mathematics, had tested out of Calculus I and II before arriving, and moved into the mathematics curriculum with finance in mind.
What he found instead was a different aptitude: seeing a business whole, from above, and understanding how the parts fit. That pulled him toward entrepreneurship, and toward graduating in Professional Writing in 2016. A deliberate choice, not a fallback. He wanted to argue an idea clearly and set that next to the business instinct.
He met Tsavo Knott at Miami, and the two started Mesh while still enrolled. On graduation day, instead of attending the ceremony, Mack attended a meeting to close the company's first $200K angel investment.
Mack came to engineering through design, not a computer science degree. At Miami he taught himself Photoshop and then Sketch, and spent the better part of two years drawing the interfaces for Mesh before anyone had written a line of it. What wore thin was the handoff. He could see the thing and had no way of his own to make it real.
He never left design behind. Product and experience design is still where he starts. What he is not is a graphic designer: he can direct a brand or an identity, but the person stitching the vectors should be someone else.
Mesh had contracted its build to a third-party shop, and when that fell apart the work came in-house or stopped. Mack learned web development on the job, going deep enough on JavaScript and then TypeScript to build and maintain a full front end himself.
In the stretch where Mesh wound down and Pieces ramped up, Mack, Tsavo Knott and Mark Widman consulted for a developer tool company in Cincinnati, building a web application that embedded into its product as a plugin. It was the first time his front end had to hold up inside someone else's system.
Pieces needed something else again, because a native desktop application is not a website. One codebase across macOS, Windows and Linux pointed to Flutter and Dart, where performance, animation and graphics were good out of the box rather than fought for. The plugin suite pulled him back the other way, into the Chrome and VS Code ecosystems, about as TypeScript-heavy as software gets.
Mack co-founded Mesh with Tsavo Knott while the two were finishing at Miami. It was an auto-populated collaboration tool for higher education: the roster, the group and the shared workspace assembled themselves, so students did not have to rebuild that scaffolding every term. The company raised $600K.
For the first two years the product itself was built by an outsourced development firm, while Mack and Knott worked with Miami University to pilot it on campus.
None of it paid yet. From the middle of 2018 into the following year Mack worked at StudioThink, a boutique marketing agency in Cleveland, as a digital account coordinator, handling clients' website builds, social media, content and brand direction, and kept Mesh moving around it.
By early 2019 they could go full time, and did. Mack had been living at home since he graduated, and the move to Cincinnati was not clean: about a month between friends' apartments at Miami and a run of Airbnbs before he could take a one-bedroom of his own. There were mornings he woke up not knowing where he was going to brush his teeth.
They pivoted before the year was out. Mesh wound down over the same stretch that Pieces ramped up, so the end of one and the start of the other were a single period.
Mack co-founded an always-on AI memory company in Cincinnati with Tsavo Knott and held it from incorporation through close. It shipped native desktop applications for macOS, Windows and Linux, plus plugins for the popular browsers and developer tools, reaching 114,283 registered people across 222 production releases.
He built the desktop client, owned the shared module architecture the plugins ran on, ran the company's operations, and stayed in the codebase throughout.
Mack works from a small number of positions he has held long enough to test. Precision as a form of respect, because vague status is expensive and somebody else pays. Simplicity as the ultimate sophistication, in a product or a sentence. Skepticism that resolves into optimism or realism, never enthusiasm ahead of understanding.
On teams he takes the frame from sport. A group on opposite sides of a fence, arguing who was right, builds resentment. A group on the same side, looking at the goal, builds something else. Trust is words matching actions, feedback rots when withheld, and nobody sprints a whole race.
Outside the work his attention runs to venture capital and the software missing underneath it, to AI-native products, to government technology, and to what makes an organization last.
Mack married Samantha Myers, a nurse practitioner, in early 2025. Their son was born in 2026. The family lives in Columbus, Ohio.
He has lived in Ohio throughout: Chagrin Falls, then Oxford, then six years in Cincinnati, and Columbus since.
He plays hockey, golf and tennis, follows Ohio sports closely, and keeps up with current events and the public markets.