Blog

Notes on performance-critical software, AI-agent systems, and the products we ship.

19 Aug 2026
We lied about the five minutes. A customer did 160 invoices in 5.6.
A customer running a grocery store and a deli restaurant cleared eight months of unfiled paperwork on his phone: 1,102 documents in 27 minutes of actual work. The month-by-month timings, what he actually used it for, and how one gesture per document makes that possible.
14 Aug 2026
What it takes to put a 5 GB log on screen
How the LogRider engine reads log files larger than RAM: memory-mapping in a 64 MB window, a sparse line index with a checkpoint every 1000 lines, RE2 so no pattern can hang, and what the measured numbers actually are.
17 Jul 2026
How we got Google CASA Tier 2 for BillyBox in three weeks
Reading a Gmail inbox needs a Google-restricted scope, which needs a CASA Tier 2 security validation. The real timeline, the questionnaire, the one thing the assessor caught, and what it cost.