Denis Oster denisoster

Last Updated: March 2023

IMPORTANT: Ignore the out-of-date steps below for getting Chromium keys.

Instead, read this up-to-date guide (Jan 2023) written by @LearningToPi.

P.S. Thank you to every contributor below who provided tips over the years on what should be a straightforward process: setting up Chromium for local development.

Long live the web!

Elixir installation guide

Version numbers should be the ones you want. Here I do it with the last ones available at the moment of writing.

The simplest way to install elixir is using your package manager. Sadly, at the time of writing only Fedora shows the intention to keep its packages up to date. There you can simply sudo dnf install erlang elixir and you are good to go.

Anyway, if you intend to work with several versions of erlang or elixir at the same time, or you are tied to a specific version, you will need to compile it yourself. Then asdf is your best friend.

Ruby Metaprogramming Guide

Note: This guide works with Ruby 2.6+ through Ruby 3.x, with modern Ruby 3.x features highlighted where applicable. Core metaprogramming concepts remain consistent across Ruby versions.

This document has been collaboratively updated and modernized through an interactive process with Claude Code, revised with examples, visual diagrams, and Ruby 3.x compatibility.

Introduction

C-a == Ctrl-a
M-a == Alt-a

General

:q        close
:w        write/saves
:wa[!]    write/save all windows [force]
:wq       write/save and close

	FROM rails:4.2.3

	MAINTAINER Renato Filho <[email protected]>

	ENV HOME /home/app
	ENV RAILS_ENV development

	RUN useradd -m -s /bin/bash app

	RUN gem install -N bundler

	-- Inspired by Linux alt-drag or Better Touch Tools move/resize functionality

	function get_window_under_mouse()
	-- Invoke `hs.application` because `hs.window.orderedWindows()` doesn't do it
	-- and breaks itself
	local _ = hs.application

	local my_pos = hs.geometry.new(hs.mouse.getAbsolutePosition())
	local my_screen = hs.mouse.getCurrentScreen()

	# install with yaourt
	yaourt -S firebird-superserver

	# create symlink for firebird isql due to a conflict with unixODBC isql
	# check with this command:
	whereis isql (ENTER)
	isql: /usr/bin/isql /opt/firebird/bin/isql /usr/share/man/man1/isql.1.gz

	# creating symlink:
	sudo ln -s /opt/firebird/bin/isql /usr/bin/isql-fb

	require 'mina/git'
	require 'mina/nginx'

	set :application, 'your_app_name'
	set :domain, 'your_server'
	set :user, 'ubuntu'
	set :deploy_to, '/location/to/deploy'
	set :app_path, "#{deploy_to}/#{current_path}"
	set :repository, 'your_repo'
	set :branch, 'master'

	#Insall Ajenti
	apt-get update
	wget http://repo.ajenti.org/debian/key -O- \| apt-key add -
	echo "deb http://repo.ajenti.org/ng/debian main main ubuntu" >> /etc/apt/sources.list
	apt-get update
	apt-get install ajenti
	service ajenti restart

	# Uninstall Apache2
	sudo apt-get autoremove && sudo apt-get remove apache2*

	# Call scopes directly from your URL params:
	#
	# @products = Product.filter(params.slice(:status, :location, :starts_with))
	module Filterable
	extend ActiveSupport::Concern

	module ClassMethods

	# Call the class methods with names based on the keys in <tt>filtering_params</tt>
	# with their associated values. For example, "{ status: 'delayed' }" would call

Denis Oster denisoster

Elixir installation guide

Ruby Metaprogramming Guide

Table of Contents

Introduction

General