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@fjahr
fjahr / bitcoin_debugging.md
Last active March 6, 2024 11:43
Debugging Bitcoin Core

Moved to https://github.com/fjahr/debugging_bitcoin to allow for better collaboration.

This document is currently optimized for MacOS. If you would like to help me add Linux equivalent commands, please let me know.

Debugging Bitcoin Core

This guide is designed to give beginners of C++ development and/or people new to the bitcoin core code base an overview of the tools available for debugging issues as well as giving hints where issues may trip you up.

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.

@januszm
januszm / _mina_puma_apache.conf
Last active July 21, 2016 15:03
Deply Rails App with Puma and Apache via Mina
<VirtualHost *:80>
ServerName www.esdb.cn
ServerAlias esdb.cn
DocumentRoot /home/ubuntu/apps/xxx.com/current/public
<Directory /home/ubuntu/apps/xxx.com/current/public>
Options FollowSymLinks
AllowOverride None
Require all granted
</Directory>
@akalin
akalin / springer-lnm-1.md
Last active June 27, 2024 19:53
Direct links to Lecture Notes in Mathematics full books

Direct links to Lecture Notes in Mathematics (Part 1)

*-Autonomous Categories - Michael Barr (1979) ([1], [2], [3], [4], [5], [6])

1-Dimensional Cohen-Macaulay Rings - Eben Matlis (1973) ([1], [2

@jpotts18
jpotts18 / Alamofire-JSON-Serialization.md
Last active August 17, 2020 15:44
Alamofire JSON Serialization of Objects, Collections, Nesting

Alamofire JSON Serialization of Objects and Collections

Alamofire is a great Swift library developed by the creator of AFNetworking @mattt. The purpose of this gist is to explain how to use the built-in power of Alamofire to serialize your JSON. In this example we will be serializing a simple blog API. First we will start with serializing a single JSON object and add complexity as we go along.

Warning: This was written before Swift 1.2

A Single JSON Serialization

This is the first JSON object that we will be serializing.

@JaviLorbada
JaviLorbada / FRP iOS Learning resources.md
Last active April 20, 2025 21:15
The best FRP iOS resources.

Videos

@lyricat
lyricat / prime_sieve.go
Created August 15, 2012 11:21
A concurrent prime sieve
// A concurrent prime sieve
// via: http://golang.org/doc/play/sieve.go
package main
// Send the sequence 2, 3, 4, ... to channel 'ch'.
func Generate(ch chan<- int) {
for i := 2; ; i++ {
ch <- i // Send 'i' to channel 'ch'.
}
@brandonb927
brandonb927 / osx-for-hackers.sh
Last active May 9, 2025 18:09
OSX for Hackers: Yosemite/El Capitan Edition. This script tries not to be *too* opinionated and any major changes to your system require a prompt. You've been warned.
#!/bin/sh
###
# SOME COMMANDS WILL NOT WORK ON macOS (Sierra or newer)
# For Sierra or newer, see https://github.com/mathiasbynens/dotfiles/blob/master/.macos
###
# Alot of these configs have been taken from the various places
# on the web, most from here
# https://github.com/mathiasbynens/dotfiles/blob/5b3c8418ed42d93af2e647dc9d122f25cc034871/.osx
@samqiu
samqiu / railscasts.rb
Last active December 9, 2022 03:49
Download free Railscast video
#!/usr/bin/ruby
require 'rss'
# Usage
# $ ./railscasts.rb http://railscasts.com/subscriptions/YOURRAILSCASTRSS/\/
# episodes.rss
# OR
# $ ./railscasts.rb
p 'Downloading rss index'