Hey, welcome.
I’m Johnny — engineer by trade, note-taker by compulsion, and firm believer that the best way to understand something is to explain it to a blank page.
What is this place?
Think of it as a second brain — messy, honest, and perpetually under construction.
It holds the things I’ve learned, the things I keep forgetting, and the things I wish someone had told me three stack traces ago. Some notes are polished essays; others are raw scribbles I jotted down at 2 a.m. before the insight evaporated. Both have their value.
Over the years I’ve come to believe that knowledge isn’t what you memorize — it’s what you can find again when you need it. This site is my answer to that problem.
What will you find here?
A little bit of everything that keeps me up at night (in a good way):
- Systems & Low-Level Programming — C, Linux internals, and the dark arts of making hardware do what you want
- AI & Infrastructure — from transformer architectures to inference engine optimization
- High-Frequency Trading & Low Latency — where every nanosecond has a price tag
- Distributed Systems — because nothing is ever truly consistent, available, and partition-tolerant
- FPGA & Hardware — when software isn’t fast enough, you rewrite reality in Verilog
- …and the occasional detour into whatever I couldn’t stop reading about on a Sunday afternoon
A few things worth knowing
Some sections are open to everyone. Some are locked — if you know, you know.
There are no ads here. No tracking dark patterns. No “subscribe to my newsletter” pop-ups. Just notes from one engineer to another, shared in the hope that they save someone an hour of debugging, a week of confusion, or maybe just spark an idea worth chasing.
One last thing
“The best time to plant a tree was twenty years ago. The second best time is now.”
I started writing these notes not because I had all the answers, but because I got tired of solving the same problem twice. If even one page here makes your day a little easier, then this whole thing was worth building.
Wander freely. Stay curious.
Enjoy the rabbit hole.
— Johnny