product
The data annotator in the gym
Not anti-patterns: a way to validate a product on paper before building the version that scales. Laser focus on the part only you can build; the rest is a template away.
ReadField notes
Writing
Short, sharp pieces on inference economics, the tools I build, and what music keeps teaching me about systems.
LLM routing
Your router does not know your evals
Model routing is an evaluation problem. A generic router cannot know where smaller models are good enough for your workload, but a router trained on your own judgments can.
Readstartups
The difference has to click
What making cover songs under unreasonable deadlines taught me about invisible effort, legible differentiation, and learning to lead the orchestra instead of playing every instrument.
Readdiscipline
The unlosable thing
Why I do the expensive version of things: the proof you can rebuild it is the only asset worth holding, the trick is controlling where you collect your dopamine, and slightly-above-average is the flywheel's ignition.
ReadLLM economics
OpenAI-compatible is not cost-compatible
A matching API surface tells you nothing about what a token actually costs to serve. Two endpoints can speak the same protocol and live in different economic universes.
Readtelemetry
Meter beats calculator
Calculators predict a best case you will rarely hit. A meter reads the truth off live telemetry. Why I built the meter instead of another spreadsheet.
Readmusic
Riyaz and research
What years of Hindustani classical practice taught me about systems: improvisation inside constraints, repetition without boredom, and staying with complexity.
Read