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How to setup AWS lambda function to talk to the internet and VPC

I'm going to walk you through the steps for setting up a AWS Lambda to talk to the internet and a VPC. Let's dive in.

So it might be really unintuitive at first but lambda functions have three states.

No VPC, where it can talk openly to the web, but can't talk to any of your AWS services.
VPC, the default setting where the lambda function can talk to your AWS services but can't talk to the web.
VPC with NAT, The best of both worlds, AWS services and web.

Applied Functional Programming with Scala - Notes

1. Mastering Functions

A function is a mapping from one set, called a domain, to another set, called the codomain. A function associates every element in the domain with exactly one element in the codomain. In Scala, both domain and codomain are types.

val square : Int => Int = x => x * x

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Nextcloud on Raspberry Pi 3 Setup

Tip

There is a new and up-to-date version of this gist (with focus on the Raspi setup part): https://gist.github.com/ronau/462731589c44f91bb4a3b7d30d277ecf

This manual describes how to setup a Raspberry Pi 3 with nginx, PHP 7.0, MariaDB and use it as a Nextcloud server. Strong TLS encryption with Let's Encrypt certificates is also used. Of course, Owncloud can be used instead of Nextcloud. As of February 2017, the installation instructions are basically the same.

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yes, even hidden code blocks!

print("hello world!")

	# GIT heart FZF
	# -------------

	is_in_git_repo() {
	git rev-parse HEAD > /dev/null 2>&1
	}

	fzf-down() {
	fzf --height 50% --min-height 20 --border --bind ctrl-/:toggle-preview "$@"
	}

	; The Expression Problem and my sources:
	; http://stackoverflow.com/questions/3596366/what-is-the-expression-problem
	; http://blog.ontoillogical.com/blog/2014/10/18/solving-the-expression-problem-in-clojure/
	; http://eli.thegreenplace.net/2016/the-expression-problem-and-its-solutions/
	; http://www.ibm.com/developerworks/library/j-clojure-protocols/


	; To begin demonstrating the problem, we first need some
	; "legacy code" with datastructures and functionality:


	get_latest_release() {
	curl --silent "https://api.github.com/repos/$1/releases/latest" \| # Get latest release from GitHub api
	grep '"tag_name":' \| # Get tag line
	sed -E 's/."([^"]+)"./\1/' # Pluck JSON value
	}

	# Usage
	# $ get_latest_release "creationix/nvm"
	# v0.31.4

	#!/bin/bash

	# Tom Hale, 2016. MIT Licence.
	# Print out 256 colours, with each number printed in its corresponding colour
	# See http://askubuntu.com/questions/821157/print-a-256-color-test-pattern-in-the-terminal/821163#821163

	set -eu # Fail on errors or undeclared variables

	printable_colours=256

	import java.lang.reflect.*
	import kotlin.reflect.KClass
	import kotlin.reflect.KType
	import kotlin.reflect.KTypeProjection
	import kotlin.reflect.KVariance
	import kotlin.reflect.full.createType

	// --- Interface ---

	inline fun <reified T : Any> getKType(): KType =