Technical architecture: the platform’s foundation, measured and compared

What this article establishes

The chain, from the market to the screen

The core in contact with the market is in Rust

The local hub is in Python, and that is not a flaw

The display: what we paint in, and what it costs

The technical foundations, side by side

Three families, and what each one buys

What each foundation asks of your machine

Display rate, as published

Studies you write yourself

The data made available to a study

What stops it when it is faulty

What this openness does not do

The order-by-order book: counting rather than estimating

What you need to put together to read the book order by order

What it costs, and what it rules out

Real-time transport

Replay is a contract, not a feature

A shared quantity has a single producer

One data source, one process, one archive

Context is not in another piece of software

Options levels sit on the other charts

What stays on your machine, and what leaves it

The local machine is not a trust zone

The assistant has only what the tools give it

The voice speaks offline

The risk lock always lets you out

Two contracts on the same price grid

What keeps the platform from lying

The catalog: 115 roots, six exchanges

And what we do not have

Two choices nobody notices

Language: French is the key

Windows are real windows