mraleph

Dart VM FFI Vision

Background

The aim of Dart FFI project (tracked as Issue #34452) is to provide a low boilerplate, low ceremony & low overhead way of interoperating with native C/C++ code.

The motivation behind this project is twofold:

freetonik

VPN-сервисы

Существует огромное количество VPN-сервисов. Вот два популярных варианта:

1. https://nordvpn.com/ большие скидки при оплате за 2 и 3 года, возврат денег в течение 30 дней (если зайти на https://nordvpn.com/features/ и пролистать вниз, то появится попап со скидкой 77% — $99 за три года)
2. https://www.privateinternetaccess.com/ старый, добротный

Таблица сравнения кучи VPN-сервисов https://thatoneprivacysite.net/vpn-comparison-chart/

См. также:

ErikAugust

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#ifdef _MSC_VER
#include <intrin.h> /* for rdtscp and clflush */
#pragma optimize("gt",on)
#else
#include <x86intrin.h> /* for rdtscp and clflush */
#endif

tscholl2

package main

import (
	"crypto/aes"
	"crypto/cipher"
	"crypto/rand"
	"crypto/sha256"
	"encoding/hex"
	"fmt"
	"strings"

lbmn

Any copyfree Nim project gets a vote-up from me. ;-)

One thing I'd wish for would be a lean and portable GUI target platform that would work on a pure-copyfree software stack (i.e. a permissively licensed alternative to GTK+ on Unix). I know that's too much to hope for, at least at this time...

But I'm wondering if anyone else is interested in discussing this question: which copyfree UI library would be the top contender for inclusion in a higher-level "cross-platform GUI toolkit" like NiGui?

AFAIK, the top contenders would include: Nuklear, Agar, Nana C++, and imgui. Nuklear is a very lean option, and it already has some usage within the Nim ecosystem.

Less likely possibilities (for various reasons) that might still interest someone would include: Tk, [EFL](https://en.wikipedia.org/wiki/Enlighte

ptarjan

Scaling your API with rate limiters

The following are examples of the four types rate limiters discussed in the accompanying blog post. In the examples below I've used pseudocode-like Ruby, so if you're unfamiliar with Ruby you should be able to easily translate this approach to other languages. Complete examples in Ruby are also provided later in this gist.

In most cases you'll want all these examples to be classes, but I've used simple functions here to keep the code samples brief.

Request rate limiter

This uses a basic token bucket algorithm and relies on the fact that Redis scripts execute atomically. No other operations can run between fetching the count and writing the new count.

spion

function translateError(msg) {
  var newErr = new Error(msg); // placed here to get correct stack
  return e => { 
    newErr.originalError = e;
    throw newErr;
  }
}

async function asyncTask() {  
    const user = await UserModel.findById(1).catch(translateError('No user found'))

rondy

FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.

---

Effective Engineer - Notes

• By Edmond Lau
• Highly Recommended 👍
• http://www.theeffectiveengineer.com/

What's an Effective Engineer?

cannium

package main

import (
	"crypto/aes"
	"crypto/cipher"
	"crypto/rand"
	"encoding/hex"
	"fmt"
	"io"
)

spaze

2023 update

ℹ️ Please note this research is from 2016 when Opera has first added their browser "VPN", even before the "Chinese deal" was closed. They have since introduced some real VPN apps but this below is not about them.

🕵️ Some folks also like to use this article to show a proof that the Opera browser is a spyware or that Opera sells all your data to 3rd parties or something like that. This article here doesn't say anything like that.

---

When setting up (that's immediately when user enables it in settings) Opera VPN sends few API requests to https://api.surfeasy.com to obtain credentials and proxy IPs, see below, also see The Oprah Proxy.

The browser then talks to a proxy de0.opera-proxy.net (when VPN location is set to Germany), it's IP address can only be resolved from within Opera when VPN is on, it's 185.108.219.42 (or similar, see below). It's an HTTP/S proxy which requires auth.