> Averages hide what your users feel
Your dashboard says average latency is 200ms. Someone is waiting 25 seconds. Averages describe the system. Percentiles describe what your users actually live through.
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> SESH - session tracking that survives rabbit holes Blueprint
A session management CLI built on markdown files and git. Here's the architecture, the decisions, and enough to rebuild it yourself.
> Blueprints: open-sourcing the architecture, not the code
Open-source the architecture and the decisions, without the code maintenance. In the era of AI, blueprints are more useful than repos.
> What the founder-to-employee transition is actually like
I had product instinct when I joined Shopify after my startup. What I built there was the discipline to back it up, and the harder skill of leading without authority.
> Be bold, ship gradually
After weeks of building, it's tempting to just ship it. But the way something rolls out can mean the difference between a successful launch and one that backfires.
> How Gmail rolled out a major redesign in 90 days
You may have noticed the new Gmail that launched recently. The update touts letting users "do more without leaving your inbox." It brings a new, fresher...
> A vacation mode for Slack
In 2018 there was still no way to switch off Slack for a vacation without turning it off entirely. Updated in 2026 with what Slack shipped, and why it beats what I asked for.
> How I manage notifications
My 2018 notification setup: filter by what deserves an interruption instead of turning everything off. Updated in 2026 with what held up.
> A great vision is informed by customers
Where does vision come from? Smart CEOs like Elon Musk, Brian Chesky, and Jack Dorsey tap into customer knowledge to build better products.
> Ask your happy users what they hate
One of the things I think Google does a great job at is asking for feedback on their products. I came across a recent example of this when booking a fli...