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Problem

You have installed GPG, then tried to perform a git commit and suddenly you see this error message after it 😰

error: gpg failed to sign the data
fatal: failed to write commit object

Understand the error (important to solve it later!)

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// ==UserScript==
// @name        Medium Paywall Bypass (Manual Button + Badge + Fallback + Offline)
// @namespace   Violentmonkey Scripts
// @run-at      document-start
// @match       *://*.medium.com/*
// @match       *://medium.com/*
// @match       *://*/*
// @grant       none
// @version     3.5
// @inject-into content

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# Basic Makefile for Golang project
# Includes GRPC Gateway, Protocol Buffers
SERVICE		?= $(shell basename `go list`)
VERSION		?= $(shell git describe --tags --always --dirty --match=v* 2> /dev/null || cat $(PWD)/.version 2> /dev/null || echo v0)
PACKAGE		?= $(shell go list)
PACKAGES	?= $(shell go list ./...)
FILES		?= $(shell find . -type f -name '*.go' -not -path "./vendor/*")

# Binaries
PROTOC		?= protoc

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set ignorecase
set smartcase
set scrolloff=3 " 3 lines above/below cursor when scrolling

" Emulated Plugins
set surround

" Copy to system clipboard as well
set clipboard+=unnamed

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#!/bin/sh
# Configure homebrew permissions to allow multiple users on MAC OSX.
# Any user from the admin group will be able to manage the homebrew and cask installation on the machine.

# allow admins to manage homebrew's local install directory
chgrp -R admin /usr/local
chmod -R g+w /usr/local

# allow admins to homebrew's local cache of formulae and source files
chgrp -R admin /Library/Caches/Homebrew

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Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "your_email@youremail.com"

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#!/usr/bin/env bash

vm='minikube'
natnet='vboxipv6'

echo 'Fixing virtualbox/minikube IPV6 problems'

if ! command -v vboxmanage &> /dev/null; then
  echo 'vboxmanage is not installed'
  exit 1

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HASKELL PROGRAMMING FROM FIRST PRINCIPLES

CHAPTER1. ALL YOU NEED IS LAMBDA

1.1 All You Need is Lambda

lambda calculus:

computation model, 1930s, Alonzo Church, formalizing a method, Turing machines

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#include <sys/socket.h>
#include <sys/un.h>
#include <sys/event.h>
#include <netdb.h>
#include <assert.h>
#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include <errno.h>

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package main

import (
	"fmt"
	"net"
	"os"
	"syscall"
)

const (