Designing for millions: lessons from scaling a real-time API

Thu, 28 May 2026 00:00:00 +0000

The morning it happened, I was making coffee. A small tool I’d built to broadcast live scores had been picked up by a popular account overnight, and by 9 a.m. it was fielding more traffic in a minute than it had seen in its entire life. Nothing was technically down; it was just slow in a way that felt personal. That day taught me more about systems than a year of reading ever had.

Embedded to web: what microcontrollers taught me about performance

Mon, 30 Mar 2026 00:00:00 +0000

My first serious programming job had a hard limit printed on the datasheet: 8 KB of RAM, 64 KB of flash. Not “8 KB before it gets slow.” 8 KB before the device stops working and a technician drives out to a site to find out why.

Go on Mo Jahani

Designing for millions: lessons from scaling a real-time API

Embedded to web: what microcontrollers taught me about performance