HFTrader

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HFTrader

#include <optional>
#include <unordered_set>
#include <vector>
#include <iostream>
#include <chrono>
#include <ctime>

template<typename T> std::optional<int> minimum_coins(T target, std::vector<T> denominations) {
  auto values = new std::unordered_set<T>(); values->insert(target);

HFTrader

Initial setup of MSYS2

This page documents the instructions for setting up a Windows build using MSYS2.

First, you have to download and install MSYS2 from https://www.msys2.org/

Update the package database

pacman -Sy pacman

HFTrader

Installing packages

Note that packages often have a series of optdepends - optional dependencies - which are packages that provide additional functionality to the application, albeit not strictly required for running it. When installing a package, pacman will list its optional dependencies among the output messages, but they will not be found in pacman.log: use the pacman -Si (see Querying package databases) command to view the optional dependencies of a package, together with short descriptions of their functionality.

⚠️ Partial upgrades are not supported 69

Installing specific packages

To install a single package or list of packages (including dependencies), issue the following command:

HFTrader

# Non-root account is recommended for this process

# centos-specific prepration
sudo yum -y update && sudo yum -y groupinstall 'Development Tools' && sudo yum -y install curl irb m4 ruby

# Sanitize the environment
PATH=~/.linuxbrew/bin:/usr/local/bin:/usr/bin:/bin
unset LD_LIBRARY_PATH PKG_CONFIG_PATH

# install linuxbrew

HFTrader

#!/bin/bash
# This gist downloads a minimal set of boost libraries just enough to compile the regex library

set -exo pipefail

INSTALL_DIR=/ssd/tmp/install
TMPDIR=/ssd/tmp
TAG=boost-1.78.0

cd $TMPDIR

HFTrader

Instructions

Be on time for the Zoom call.

Be prepared to share your screen on your zoom call.

You should have a way to compile a program in C++ on the terminal - it can be:

1. remoting to another Linux box
2. on a WSL/WSL2 terminal session

HFTrader

['Mary', 'Joe', 'Bill', 'Annie', 'Jorge'] = 205   Key votes: []
['Mary', 'Joe', 'Bill', 'Annie'] = 125   Key votes: ['Bill', 'Annie']
['Mary', 'Joe', 'Bill', 'Jorge'] = 135   Key votes: ['Jorge']
['Mary', 'Joe', 'Annie', 'Jorge'] = 175   Key votes: ['Jorge']
['Mary', 'Joe', 'Jorge'] = 105   Key votes: ['Mary', 'Joe', 'Jorge']
['Mary', 'Bill', 'Annie', 'Jorge'] = 185   Key votes: []
['Mary', 'Bill', 'Annie'] = 105   Key votes: ['Mary', 'Bill', 'Annie']
['Mary', 'Bill', 'Jorge'] = 115   Key votes: ['Bill', 'Jorge']
['Mary', 'Annie', 'Jorge'] = 155   Key votes: ['Annie', 'Jorge']
['Joe', 'Bill', 'Annie', 'Jorge'] = 200   Key votes: []

HFTrader

{
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    "paddingHorizontal": "21px",
    "backgroundImage": null,
    "backgroundImageSelection": null,
    "backgroundMode": "color",
    "backgroundColor": "rgba(255,255,255,1)",
    "dropShadow": true,
    "dropShadowOffsetY": "10px",
    "dropShadowBlurRadius": "7px",

HFTrader

An Open Letter to Every Content Creator: You May Already Be an International Tax Criminal

October 16, 2025

Dear Fellow Creators, Journalists, Newsletter Writers, and Everyone Making Money Online,

I'm writing this letter as a warning that could save you from financial ruin. If you're selling subscriptions, newsletters, or any digital content online through Substack, WordPress, Ghost, Beehiiv, ConvertKit, or similar platforms, you are likely breaking tax laws in dozens of countries right now without knowing it.

This isn't hyperbole. This is happening to me and hundreds of thousands of creators as you read this.