recommendations
These are products I love and use.
HARDWARE

An espresso machine for formula. I made fun of it before becoming a parent; now I recommend it to everyone. It's the only device I've found that genuinely gives new parents time back.

In-bed heating and air conditioning. The thermal alarm wakes you by warming the bed, and the cooling is real — in a San Francisco apartment with no AC, that's life-changing. Sleep matters this much. I'd invest in it.

Tactile Turn Slim Bolt Action Pen
My everyday-carry pen. Machined metal, a deeply satisfying bolt action, exactly the right weight. If you want one great pen, this is it.

A minimal e-ink notebook: no apps, just notes. Feels like paper, the battery runs for weeks, and the cover is genuinely excellent. Expensive — and worth it for capturing notes on the fly.

Moleskine Cahier Journal, Indigo Blue
The analog half of my everyday carry. Thin enough to always be with me, beautiful in indigo blue.
SOFTWARE

Raycast(investor)
The command bar for everything on a Mac. I'm an investor — and I'd use it anyway.

Voice-to-text that keeps up with thinking out loud. Most of my instructions to agents start here.

The agentic harness I spend my days in — it built most of this site under supervision.

The terminal, reimagined: blocks, AI, and sane defaults.

A second engineering brain from a different model family — my adversarial reviewer of choice.

A deck for running a fleet of coding agents. I'm a contributor.
Some picks note where I'm an investor.