Benjamin Delmas bdelmas

Functional, Reactive, and Distributed Systems Bibliography

Books

CQRS Journey: Free ebook from Microsoft (Print book available for purchase)
Functional and Reactive Domain Modeling: A high level overview of how to build up domain models using free monads and interpreters.
Reactive Microservices Architecture: Free booklet from Lagom and O'Reilly
Reactive Messaging Patterns with the Actor Model: Applications and Integration in Scala and Akka
Domain-Driven Design: Tackling Complexity in the Heart of Software

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

Principles of Adult Behavior

Be patient. No matter what.
Don’t badmouth: Assign responsibility, not blame. Say nothing of another you wouldn’t say to him.
Never assume the motives of others are, to them, less noble than yours are to you.
Expand your sense of the possible.
Don’t trouble yourself with matters you truly cannot change.
Expect no more of anyone than you can deliver yourself.
Tolerate ambiguity.
Laugh at yourself frequently.

Remove old kernels files

You can see should restart the server when you see *** System restart required *** when you start ssh
You can restart with sudo shutdown -r now
You can see your current kernel version with uname -r
You can see all kernel versions in /lib/modules/

1) Delete perimated packages

sudo apt-get autoclean

Around 2006-2007, it was a bit of a fashion to hook lava lamps up to the build server. Normally, the green lava lamp would be on, but if the build failed, it would turn off and the red lava lamp would turn on.

By coincidence, I've actually met, about that time, (probably) the first person to hook up a lava lamp to a build server. It was Alberto Savoia, who'd founded a testing tools company (that did some very interesting things around generative testing that have basically never been noticed). Alberto had noticed that people did not react with any urgency when the build broke. They'd check in broken code and go off to something else, only reacting to the breakage they'd caused when some other programmer pulled the change and had problems.

Default

Powerlevel10k

Business Models

Advertising

Models	Examples
Display ads	Yahoo!
Search ads	Google

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

	defmodule MyApp.Repo.Migrations.AddPostgresTriggerAndFunctionForAllTables do
	use Ecto.Migration

	def up do
	# Create a function that broadcasts row changes
	execute "
	CREATE OR REPLACE FUNCTION broadcast_changes()
	RETURNS trigger AS $$
	DECLARE
	current_row RECORD;

	require 'active_support/concern'
	require 'active_support/core_ext/object/blank'

	require 'action_view/buffers'
	require 'action_view/helpers/output_safety_helper'
	require 'action_view/helpers/capture_helper'
	require 'action_view/helpers/tag_helper'

	require 'benchmark/ips'