Kevin Gathuku kevgathuku

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.

An opinionated list of excellent Clojure learning materials

These resources (articles, books, and videos) are useful when you're starting to learn the language, or when you're learning a specific part of the language. This an opinionated list, no doubt. I've compiled this list from writing and teaching Clojure over the last 10 years.

🔴 Mandatory (for both beginners and intermediates)
🟩 For beginners
🟨 For intermediates

direnv on Windows

Overview

In JavaScript projects, I used to use dotenv so that I could put local environment variables in a .env file for local development. But dotenv requires you to add code to your project. With direnv, you can put local env vars in a .envrc file and those env vars are loaded automatically in the shell.

Steps to install

For these steps, it is assummed that you have installed Git Bash on Windows. I also use VSCode as my editor.

Create a folder such as c:\tools to put the direnv.exe file and add it to the Windows PATH

Brew Bundle Brewfile Tips

Copyright & License

Unless otherwise noted (either in this file or in a file's copyright section) the contents of this gist are Copyright ©️2020 by Christopher Allen, and are shared under spdx:Creative Commons Attribution Share Alike 4.0 International (CC-BY-SA-4.) open-source license.

Sponsor

If you more tips and advice like these, you can become a monthly patron on my GitHub Sponsor Page for as little as $5 a month; and your contributions will be multipled, as GitHub is matching the first $5,000! This gist is all about Homebrew, so if you like it you can support it by donating to them or becoming one of their Github Sponsors.

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

Table alias

1.) Download a Nerd Font

2.) Unzip and copy to ~/.fonts

3.) Run the command fc-cache -fv to manually rebuild the font cache

	function getOS()
	-- ask LuaJIT first
	if jit then
	return jit.os
	end

	-- Unix, Linux variants
	local fh,err = assert(io.popen("uname -o 2>/dev/null","r"))
	if fh then
	osname = fh:read()

	# Relating to [YASL](https://github.com/AndyObtiva/yasl)
	def dump_ruby_basic_data_type_data(object)
	case object.class.ancestors.map(&:name)
	in [, 'Time', ]
	object.to_datetime.marshal_dump
	in [, 'Date', ]
	object.marshal_dump
	in [, 'Complex', ] \| [, 'Rational', ] \| [, 'Regexp', ] \| [, 'Symbol', ] \| [, 'BigDecimal', ]
	object.to_s
	in [, 'Set', ]

	class Solution {
	public:
	vector<string> findItinerary(vector<vector<string>>& tickets) {
	unordered_map<string,multiset<string>> adj;
	vector<string> ans;
	int n=tickets.size();
	//Make graph
	for(int i=0;i<n;++i)
	adj[tickets[i][0]].insert(tickets[i][1]);

	port module Spelling exposing (..)

	import Html exposing (..)
	import Html.App as App
	import Html.Attributes exposing (..)
	import Html.Events exposing (..)
	import String


	main =