Building
Fazua Ride 50 speed unlock from a Mac, no box
How my agent and I raised the speed limit of a Fazua Ride 50 Evation from 25 to 55 km/h over USB from a MacBook, with firmware 2.04 and an open source tool.
Emin Mahrt · Journalist and publisher
Notes on Bitcoin, AI agents and building things.
I'm Emin Mahrt, publisher of proud magazine and a founder in Berlin and Zanzibar. This is where I write at length, and freely, about what I build and think. More about me.
Latest
All posts- Culture
A tree does not burn alone
A pine forest portrait read closely. Real Olympus E-M5 II EXIF, a likely Voigtländer 25mm f/0.95, low sun, 1/8000 s mechanical shutter, measured tones, and one fix with annotated crops.
- Building
Badass Box 4 on a Fazua Ride 50, the yellow light
My Badass Box 4 on a Fazua Ride 50 kept blinking yellow. What the light means, where the magnet goes, what the black ring is for, and what Badass said.
- Culture
It is not taboo to go back and fetch what you forgot
A garden path portrait read closely. Real Olympus E-M5 II EXIF, a likely Voigtländer 25mm f/0.95, low warm sun, shallow focus, measured shadows and one fix, with annotated crops.
- Culture
One man cannot launch a vessel
A close reading of a black-and-white dawn photo of a crowded wooden boat in shallow surf, with its real settings, four dust spots and a Swahili proverb.
- Science
Can sound do what quantum particles do?
Sound bends, spreads and interferes like electrons in the double slit. So is sound quantum? Where the comparison works and where it breaks.
- Culture
Mountains never meet, but people do
A centred portrait under a hazy mountain, read closely. Low sun, open shade, aerial perspective, the real Olympus EXIF at 1/8000 s, and a 20 minute exercise.
Nuri & Bitcoin
More Nuri & Bitcoin- Nuri
The agent has no hands: Why Nuri wallet can win the machine economy
An AI agent can write code and book things, but it can't pay. Why we think Nuri and its MCP can give agents a way to pay in the real world.
- Nuri
Nuri Passkey Wallet, Bitcoin, IBAN and Visa Without an Account
How Nuri turns one passkey into a self-custodial wallet for people, businesses and AI agents, with no account in between.
- Nuri
Nuri, new reality finance Vision
A short FAQ about the vision and goal of Nuri.com. What self-custody means, how passkeys protect your money, and how Nuri makes money.
Agents & AI
More Agents & AI- Agents and AI
What agent ready actually means
Four public scanners now grade whether AI agents can read your site. Here is what each one measures, which checks a static host can never pass, and the exact files and headers that move the score.
- Agents and AI
I asked my Mac how much AI I burned. It found 45 billion token events
I scanned every AI tool on my Mac for usage logs. About 45 billion token-events and roughly $9.3k at API rates, almost all of it from Codex.
- Agents and AI
From Domesticated Dogs to AI Companions
Capitalism as dog breeding, a robot for everyone, and the short time left where we still understand AI. What we can do with that time now.
Building
More Building- Building
Riverside 500E faster, bike tuning
A complete how-to for the Riverside 500E: the free magnet hack, the Badass Box, and a KT controller swap, with drawings, part links and test steps.
- Building
Sometimes the more things you add the smaller it gets
Twenty-one quotes from a talk about making things, and what each one means when you build a product
- Building
How the FATE VM fixes the basic flaws of the EVM
Erik Stenman built FATE, a typed VM without flat memory or raw jumps. Contracts get about 10 times smaller and run 3 times faster than on the EVM.
Science
More Science- Science
Cracked lips, neon urine, and two people who took the same pill
Same B vitamin pill, two people, opposite results. I slept better and my partner couldn't sleep at all. What the studies say and what we test next.
- Science
Could the shape of randomness help explain why matter won?
An idea to talk about with physicists. Maybe the Boltzmann peak is where a tiny matter advantage got big enough to win
- Science
How I Used AI to Navigate a Complex Orthodontic Case in East Africa: CBCT Analysis, Provider Vetting, and Getting a Second Opinion Before Braces
How we used Claude to read a CBCT scan, find an orthodontist in Nairobi and check a diagnosis before my partner got braces.
Culture
More Culture- Culture
The sun cannot be covered with mud
A close reading of a harbour photo shot straight into a low sun: the flare, the haze, the two skies, an exposure read from guy wires, Monet, the Bechers, Sandburg's fog and one fix.
- Culture
A thousand friends are few, one enemy is too many
A close reading of a black-and-white Istanbul photo. Two head sizes, a ferry's name and its smoke give away distance, aperture and shutter, with Ara Güler and Orhan Veli alongside.
- Culture
The eyes say as much as the mouth
A close reading of an over-the-shoulder portrait in soft daylight. The turn, the catchlights, lens distance, shutter and aperture trade-offs, and one fix, with annotated crops.
More
Archive- The player is lost, the onlooker sees clearly
- The darkest place is under the candlestick
- What you give away is yours, what you keep is lost
- If you wait, the sea road will have fair weather
- Bread is in the lion's mouth
- Whoever loves the rose bears its thorns
- Looking at flowers from horseback
- Walls have ears, paper screens have eyes
- A white colt glimpsed through a crack in the wall
- My father Nurettin Sezer and the workers who made cinema in Stockholm
- Theory vs. Reality: Manipulation through Media and Technology (January 2005, Emin Mahrt)
- AF Fine Adjustment, or how to fix a camera that lies about focus