Syntax Circus — an independent software studio
Syntax Circus builds clear, useful, thoughtfully made software and writing.
Founded by Jon Seeley, Syntax Circus is an independent software studio bringing together featured projects, book updates, and long-form writing for people who value clarity, curiosity, and craft over noise.
What lives here
A small collection of work, writing, and updates worth following.
Projects
A closer look at the products, ideas, and experiences taking shape at Syntax Circus.
Book
Progress updates and companion material for an upcoming book built to inform and encourage readers.
Writing
Long-form essays on work, creativity, leadership, and the human side of building meaningful things.
Now available
Core Musica is live.
Core Musica is a serious listening tool for people who care about their own music library, richer metadata, and discovery that feels intentional instead of random.
It helps listeners build playlists, explore similarities across their collection, and stay focused on the music they already love.
Why people return
Clear, calm, and worth revisiting.
Syntax Circus keeps the spotlight on the things you came to see. Clean structure, generous spacing, and a steady pace make it easy to browse without feeling overwhelmed.
Whether you are following a product, checking in on the book, or reading an essay, the goal is the same: help you find something worthwhile quickly and enjoy the visit while you are here.
New releases to watch
Follow new products and updates as they move from early work to public release.
Fresh updates
Check back for book news, companion material, and highlights that are worth your time.
Stories behind the work
Essays and reflections add context, perspective, and personality beyond the product pages.
Led by Jon Seeley
More than two decades of experience, shared in ways people can actually use.
From finance to retail to digital products, Syntax Circus is built around thoughtful judgment, clear communication, and experiences people will want to come back to.