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@baymaxium
baymaxium / content.md
Created October 18, 2017 08:31
闲扯比特币套利交易系统的设计

原文：程序人生

关于比特币套利交易的文章，坊间一搜一大堆，尤以 2014，2015 为甚。那时交易所间价差相当可观，套利的机会很多，躺着赚钱并非难事。如今，套利区间收窄，留在沙场上的估计只剩下大玩家，想要不费力气躺赢机会渺茫。最近帮朋友牵线寻找币圈量化交易的机会，本欲做个打酱油的中间人，事了拂衣去，安安静静做个三河市微胖界扛把子，谁料还是一时技痒，不小心昨夜搭进去六七个小时。

关于如何做套利交易，我就不赘述，大家可以看这篇文章，有内容有故事：https://daily.zhihu.com/story/4831821。

本文没有故事，只有技术和产品上的分析。

既然要做可行性分析，那么第一步就是观察交易数据。国内的交易市场虽然在政策要求下清场出局，国外的交易市场还算红火。从 bitfinex，kraken 一路到 bithumb，korbit 等，都提供 rest API，少量提供 websocket 接口。虽然文档欠缺，但这些接口都很简单，上手并不困难。

@v1mkss
v1mkss / JetBrains Activation.md
Last active May 13, 2024 16:36
JetBrains Activation

JetBrains Activation

  • No proxy for:
*.apache.org, *.github.com, *.github.io, *.githubusercontent.com, *.gitlab.com, *.google.com, *.gradle.org, *.jetbrains.space, *.maven.org, cache-redirector.jetbrains.com, cloudconfig.jetbrains.com, download-cdn.jetbrains.com, download.jetbrains.com, downloads.marketplace.jetbrains.com, ea-report.jetbrains.com, github.com, gitlab.com, google.com, gradle.org, jcenter.bintray.com, plugins.jetbrains.com, resources.jetbrains.com, www.jetbrains.com

Activation Key:

UX394X3HLT-eyJsaWNlbnNlSWQiOiJVWDM5NFgzSExUIiwibGljZW5zZWVOYW1lIjoiSG9uZ2lrIFVuaXZlcnNpdHntmY3snbXrjIDtlZnqtZAiLCJsaWNlbnNlZVR5cGUiOiJDTEFTU1JPT00iLCJhc3NpZ25lZU5hbWUiOiLkvJfliJvkupEg5bel5L2c5a6kIiwiYXNzaWduZWVFbWFpbCI6ImhhbmF6YXdhbWl0b0BnbWFpbC5jb20iLCJsaWNlbnNlUmVzdHJpY3Rpb24iOiJGb3IgZWR1Y2F0aW9uYWwgdXNlIG9ubHkiLCJjaGVja0NvbmN1cnJlbnRVc2UiOmZhbHNlLCJwcm9kdWN0cyI6W3siY29kZSI6IkdPIiwicGFpZFVwVG8iOiIyMDI0LTEyLTEzIiwiZXh0ZW5kZ
@muink
muink / NCSI.md
Created November 20, 2021 09:15
常見網絡連接狀態指示器 (NCSI) 及強制門戶 (Captive Portal) 認證

常見網絡連接狀態指示器 (NCSI) 及強制門戶 (Captive Portal) 認證地址

常見網絡連接狀態指示器 (NCSI) 檢測用網絡地址

  • Windows:
    • Edge:
      • http(s)://edge.microsoft.com/captiveportal/generate_204 HTTP連接檢測, 有效值為204
    • 10-11:
      • http://www.msftconnecttest.com/connecttest.txt HTTP下載檢測, 有效值為Microsoft Connect Test
@rossja
rossja / TizenHacking.md
Last active May 13, 2024 16:34
Tizen Hacking
@jsturgis
jsturgis / gist:3b19447b304616f18657
Created November 5, 2014 01:17
public test videos
var mediaJSON = { "categories" : [ { "name" : "Movies",
"videos" : [
{ "description" : "Big Buck Bunny tells the story of a giant rabbit with a heart bigger than himself. When one sunny day three rodents rudely harass him, something snaps... and the rabbit ain't no bunny anymore! In the typical cartoon tradition he prepares the nasty rodents a comical revenge.\n\nLicensed under the Creative Commons Attribution license\nhttp://www.bigbuckbunny.org",
"sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/BigBuckBunny.mp4" ],
"subtitle" : "By Blender Foundation",
"thumb" : "images/BigBuckBunny.jpg",
"title" : "Big Buck Bunny"
},
{ "description" : "The first Blender Open Movie from 2006",
"sources" : [ "http://commondatastorage.googleapis.com/gtv-videos-bucket/sample/ElephantsDream.mp4" ],
@doozMen
doozMen / LocalNetworkAuthorization.swift
Created February 25, 2022 15:44
Uses bonjour networking to relialby check if user has granted local network access with async await as of iOS14
import Foundation
import Network
/// Uses bonjour networking to relialby check if user has granted local network access
/// How to use:
/// Add LocalNetworkAuthorization class to your project
/// Open .plist file and add "_bonjour._tcp", "_lnp._tcp.", as a values under "Bonjour services"
/// Call requestAuthorization() to trigger the prompt or get the authorization status if it already been approved/denied
/// about the author: https://stackoverflow.com/a/67758105/705761
@idontknowjs
idontknowjs / international-companies-hiring-from-india.md
Last active May 13, 2024 16:31

I've recently joined Amazon Dublin from India and got opportunities to interview with Meta London, Zalando Berlin & some other companies. I extensively researched about companies hiring internationally which support visa & relocation for Tech roles. So sharing list of companies:

Do consider to STAR, if it helped you.

London

@reginadiana
reginadiana / README-TEMPLATE.md
Last active May 13, 2024 16:30
Template sugestivo para documentação de projetos

Titulo ou Arte do Projeto

@Fuwn
Fuwn / xp.md
Last active May 13, 2024 16:28
Windows XP All Editions Universal Product Keys Collection.

Although Microsoft does not support Windows XP updates any more, I’m sure there are still many users using it due to their personal habits or job demands. Therefore XP’s product keys may be necessary even now, and Fuwn provided you with the most comprehensive Windows XP product keys here, just in order to provide some convenience.

The following CD-KEYs are official and original from Microsoft, mainly used for Windows XP Professional Service Pack 2/3 VOL/VLK system images which are the easiest ones to find on the Internet. Their biggest advantage is your Windows XP will be activated after using these CD-KEYs to complete installation.

// Windows XP Pro Product Keys //

@joschan21
joschan21 / workflow.ts
Created May 13, 2024 15:21
import { Client } from "@upstash/qstash"
import { NextRequest } from "next/server"
const baseUrl = process.env.NEXT_PUBLIC_VERCEL_PROJECT_PRODUCTION_URL
? `https://${process.env.NEXT_PUBLIC_VERCEL_PROJECT_PRODUCTION_URL}`
: "http://localhost:3000"
interface Step<I> {
create: <O>(action: (prevResult: Awaited<I>) => O) => Step<O>
finally: (action: (prevResult: Awaited<I>) => any) => any