The Sauna blog

Sauna Blog

Field notes on agents, growth, and building the AI coworker.

A small custom machine built from cut paper — gears, a hopper and dials assembled from a few simple blocks — in a soft dawn palette of dusty blue and apricot on cream.

Latest · July 1, 2026

The personal software era

50 years after personal computers, introducing personal software.

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A craftsman's workbench of small glowing tools by a cabin window, a sauna and still lake at dawn beyond, in soft pixel-art light.

The Personal Software era

50 years after Personal Computers, we've finally reached Personal Software.

 apps
A cut-paper desk with an empty chair pulled up and a steaming mug — a colleague already at work — in a soft dawn palette of dusty blue and apricot on cream.

The coworker, not the chatbot

A chatbot waits for your next message. A coworker remembers the last one, knows your tools, and gets the thing done while you're somewhere else. That gap is the whole product.

 agents
A cut-paper letter at rest beside a sound waveform rising from it, in a soft dawn palette of dusty blue and apricot on cream.

Text is async. Voice isn't.

Thinking about what changes when you talk to an agent instead of typing at it.

 voice