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@herr-vogel
herr-vogel / material-ui-next-js-button.js
Last active November 16, 2021 10:14
Using Material-UI Button with Next.js Link
import React from 'react'
import Link from 'next/link'
import Button from '@material-ui/core/Button'
const ButtonLink = ({ className, href, hrefAs, children, prefetch }) => (
<Link href={href} as={hrefAs} prefetch>
<a className={className}>
{children}
</a>
</Link>
@bayareawebpro
bayareawebpro / laravel-bitbucket-pipelines.yml
Last active January 4, 2022 05:07
Bitbucket Pipelines for Laravel
# This is a sample build configuration for PHP.
# Check our guides at https://confluence.atlassian.com/x/e8YWN for more examples.
# Only use spaces to indent your .yml configuration.
# You can specify a custom docker image from Docker Hub as your build environment.
# run composer check-platform-reqs for a list of required extensions.
image: php:7.2-fpm
pipelines:
default:
# Not needed unless you're doing feature tests.
# - step:
@CSRaghunandan
CSRaghunandan / nginx.conf
Last active April 20, 2024 19:47
Nginx configuration for serving mp4 videos
#user nobody;
worker_processes 4;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
@markblundeberg
markblundeberg / atomic-size-attack.md
Created February 16, 2018 05:14
Advisory: secret size attack on cross-chain hash lock smart contracts

Advisory: secret size attack on cross-chain hash lock smart contracts

Dr. Mark B Lundeberg, 2018 Feb 15 bitcoincash:qqy9myvyt7qffgye5a2mn2vn8ry95qm6asy40ptgx2

This security advisory notes a vulnerability in the common construction of cross-chain smart contracts (contracts between distinct cryptocurrencies) through hash locking. I focus on the primary use case in [atomic

@itoonx
itoonx / improved-lnd-bitcoind-install.md
Created January 28, 2018 07:09 — forked from bretton/improved-lnd-bitcoind-install.md
updated & improved guide to installing LND, Bitcoind, on Ubuntu 16.04 Server on testnet

Intro

the following guide is an updated install process based on the following, which needs some improvement still

This guide here is specific to getting lnd and bitcoind running on ubuntu 16.04 LTS for testnet.

It does not address mainnet, or using btcd, or neutrino.

btcd guide here

@brunogaspar
brunogaspar / difference.md
Last active October 13, 2020 15:52
[PHP] Percentage Calculation Helpers

Calculate Difference

if (! function_exists('calculatePercentage')) {
    /**
     * Calculates the percentage between the given values.
     *
     * @param int|string $previous
     * @param int|string $current
     *
@gavinandresen
gavinandresen / UTXO_BitVector.md
Last active December 14, 2023 23:28
Storing the UTXO as a bit-vector

Half-baked thoughts exploring a different way of implementing a fully-validating BCH node.

The idea is to shift the storage of full transaction data to wallets, and explore how little data a fully validating node could store. This isn't a problem today (the UTXO set easily fits in the RAM of an inexpensive server-class machine), but might eventually be at very large transaction volumes.

Initial block download is a problem today (it is annoying to have to wait several hours or days to sync up a new node), and this scheme could make it orders of magnitude faster by shifting the time when full transaction data is broadcast from initial block download to new transaction announcement.

@benmccallum
benmccallum / _Instructions.md
Last active July 25, 2021 03:35
nuxtjs, bootstrap-vue with custom bootstrap build

Important! This guide is out of date (circa 2017) and should no longer be used. For the latest advice, please refer to the BootstrapVue docs and their Nuxt.js module. https://bootstrap-vue.org/docs#nuxt-js

General setup:

  1. Install bootstrap as a dev dependency, and its dependencies (node-sass and sass-loader) npm install --save-dev bootstrap@4.0.0-beta.2 node-sass sass-loader
@brunogaspar
brunogaspar / macro.md
Last active May 1, 2024 07:24
Recursive Laravel Collection Macros

What?

If a nested array is passed into a Laravel Collection, by default these will be threaded as normal arrays.

However, that's not always the ideal case and it would be nice if we could have nested collections in a cleaner way.

This is where this macro comes in handy.

Setup

@chriseth
chriseth / snarktest.solidity
Last active December 3, 2023 07:03
zkSNARKs test code
// This file is MIT Licensed.
//
// Copyright 2017 Christian Reitwiessner
// Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF O