Daniel Vinciguerra dvinciguerra

The Unofficial 37signals/DHH Rails Style Guide

About This Document

This style guide was generated by Claude Code through deep analysis of the Fizzy codebase - 37signals' open-source project management tool.

Why Fizzy matters: While 37signals has long advocated for "vanilla Rails" and opinionated software design, their production codebases (Basecamp, HEY, etc.) have historically been closed source. Fizzy changes that. For the first time, developers can study a real 37signals/DHH-style Rails application - not just blog posts and conference talks, but actual production code with all its patterns, trade-offs, and deliberate omissions.

How this was created: Claude Code analyzed the entire codebase - routes, controllers, models, concerns, views, JavaScript, CSS, tests, and configuration. The goal was to extract not just what patterns are used, but why - inferring philosophy from implementation choices.

IRC Reference

Not intended as a guide for newbies, more like a "cheat sheet" for the somewhat experienced IRC user, especially one who wields some power over a channel.

The Basics

/join #channel
- Joins the specified channel.
/part #channel
Leaves the specified channel.

Keybase proof

I hereby claim:

I am dvinciguerra on github.
I am dvinciguerra (https://keybase.io/dvinciguerra) on keybase.
I have a public key whose fingerprint is 17BC 3FE1 FC83 FD2A 028D 2FF8 6B3E 087D F911 8A61

To claim this, I am signing this object:

first=$1
second=$2

# Replace
find -name *.cpp -or -name *.h | xargs grep "$first" -l  | xargs perl -pi -e "s/$first/$second/g"

a=getDefaultIncludes; b=get_include_dirs_def; find -name "*.py" -or -name "SC*" | xargs grep "$a" -l  | xargs perl -pi -e "s/$a/$b/g"

a=abc; b=def; find -name "*.cpp" -or -name "*.h" | xargs grep "$a" -l | xargs perl -pi -e "s/$a/$b/g"

	; Ender 3 Custom End G-code

	M117 Está pronto, cade minha cerveja.

	G91 ;Relative positioning
	G1 E-2 F2700 ;Retract a bit
	G1 E-2 Z0.2 F2400 ;Retract and raise Z
	G1 X5 Y5 F3000 ;Wipe out
	G1 Z10 ;Raise Z more
	G90 ;Absolute positioning

	KEYMAPOPTS="us us"
	HOSTNAMEOPTS="-n alpine"
	INTERFACESOPTS="auto lo
	iface lo inet loopback

	auto eth0
	iface eth0 inet dhcp
	hostname alpine
	"
	TIMEZONEOPTS="-z UTC"


	# getting uptime stdout
	str = `uptime`

	pp(str);

	# parsing uptime
	str.match(
	/^(?<current>\d+:\d+)\s+(?<message>up (?<amount>\d+) (?<unit>days\|minutes\|seconds)),\s+(?<boot_at>\d+:\d+),\s+(?<users>(?<user_count>\d+) user\|users),\s+(?<load_avgs>.*)\s$/
	)

	{
	"workbench.startupEditor": "newUntitledFile",
	"editor.fontSize": 14,
	"editor.lineHeight": 1.8,
	"javascript.suggest.autoImports": true,
	"javascript.updateImportsOnFileMove.enabled": "always",
	"editor.rulers": [80, 120],
	"extensions.ignoreRecommendations": true,
	"typescript.tsserver.log": "off",
	"files.associations": {

	#!/usr/bin/env ruby

	# _ _
	# \| \|__ ___\| \|_
	# \| '_ \ _ \ _\|
	# \|_.__\___/\__\|
	# Ruby ChatGPT CLI to ask things without leave terminal
	# by dvinciguerra

	require 'bundler/inline'

	# frozen_string_literal: true

	require 'faraday'
	require 'json'
	require 'logger'
	require 'oga'
	require 'pastel'

	module Twitch
	module PageLoader