Daniele Spinosa microspino

You MUST NOT try and generate a Rails app from scratch on your own by generating each file. For a NEW app you MUST use rails new first to generate all of the boilerplate files necessary.
Create an app in the current directory with rails new .
Use Tailwind CSS for styling. Use --css tailwind as an option on the rails new call to do this automatically.
Use Ruby 3.2+ and Rails 8.0+ practices.
Use the default Minitest approach for testing, do not use RSpec.
Default to using SQLite in development. rails new will do this automatically but take care if you write any custom SQL that it is SQLite compatible.
An app can be built with a devcontainer such as rails new myapp --devcontainer but only do this if requested directly.
Rails apps have a lot of directories to consider, such as app, config, db, etc.
Adhere to MVC conventions: singular model names (e.g., Product) map to plural tables (products); controllers are plural.
Guard against incapable browsers accessing controllers with `allo

A half-hour to learn Zig

This is inspired by https://fasterthanli.me/blog/2020/a-half-hour-to-learn-rust/

Basics

the command zig run my_code.zig will compile and immediately run your Zig program. Each of these cells contains a zig program that you can try to run (some of them contain compile-time errors that you can comment out to play with)

Arel Cheatsheet on Steroids

A (more) complete cheatsheet for Arel, including NamedFunction functions, raw SQL and window functions.

Tables

posts = Arel::Table.new(:posts)
posts = Post.arel_table # ActiveRecord

	class FuzzyIndex
	def initialize
	@index = Hash.new { \|h, k\| h[k] = Set.new }
	end

	def []=(key, value)
	trigrams(key).each { @index[it] << [key, value] }
	end

	def [](query)

	# THIS LINUX SETUP SCRIPT HAS MORPHED INTO A WHOLE PROJECT: HTTPS://OMAKUB.ORG
	# PLEASE CHECKOUT THAT PROJECT INSTEAD OF THIS OUTDATED SETUP SCRIPT.
	#
	#

	# Libraries and infrastructure
	sudo apt update -y
	sudo apt install -y \
	docker.io docker-buildx \
	build-essential pkg-config autoconf bison rustc cargo clang \

	# frozen_string_literal: true

	require 'bundler/inline'

	gemfile do
	source 'https://rubygems.org'
	gem 'pry'
	gem "sqlite3"
	gem 'activerecord'
	end

	require "date"

	class Month
	include Comparable

	MONTHS_PER_YEAR = 12

	def self.from_date(date)
	self.from_parts(date.year, date.month)
	end

	#!/bin/bash

	# by Matt Sephton @gingerbeardman

	# dependencies: p7zip, pipx, osxmetadata

	# $ brew install p7zip
	# $ brew install pipx
	# $ pipx install osxmetadata
	# check your PATH and confirm operation

	<!DOCTYPE html>
	<html>
	<head>
	<style>
	.editor { font-family: 'Roboto Mono', monospace; font-size: 12px; outline: none; overflow-y: auto; padding-left: 48px; counter-reset: line; }
	.editor div { display: block; position: relative; white-space: pre-wrap; }
	.editor div::before { content: counter(line); counter-increment: line; position: absolute; right: calc(100% + 16px); opacity: 0.5; }
	</style>
	</head>

	CREATE EXTENSION IF NOT EXISTS "unaccent"

	CREATE OR REPLACE FUNCTION slugify("value" TEXT)
	RETURNS TEXT AS $$
	-- removes accents (diacritic signs) from a given string --
	WITH "unaccented" AS (
	SELECT unaccent("value") AS "value"
	),
	-- lowercases the string
	"lowercase" AS (

Daniele Spinosa microspino

A half-hour to learn Zig

Basics

Arel Cheatsheet on Steroids

Tables

Table alias