Nick Charlton nickcharlton

How to add stimulus.js to a Rails 5.2 app

This might also work or Rails 5.1, but I haven’t tried that yet.

Add the webpacker gem to your Gemfile:

# Transpile app-like JavaScript. Read more: https://github.com/rails/webpacker
gem 'webpacker'

Then run (assuming you’re on macOS and using Homebrew):

58 bytes of CSS to look great nearly everywhere

When making this website, i wanted a simple, reasonable way to make it look good on most displays. Not counting any minimization techniques, the following 58 bytes worked well for me:

main {
  max-width: 38rem;
  padding: 2rem;
  margin: auto;
}

Monitoring and Alerting Minimum Viable Product

A checklist for those attempting to only get out of bed when it's important and to be able to debug critial and non-critial issues.

Those emphesised should probably get you out of bed when they're too high/low/gone.

This is super opinionated but I welcome feedback. It's biased to retrofitting/cleaning up/brownfield type work because that's what I know best.

HTTP(S) Services

CamelCase <--> snake_case conversion with jq

tl;dr

I provide you with 3 jq lib functions that will help you in converting between snake_case and CamelCase.

The interface

I want to change keys in my json from camelcase to snake_case.

TCP tuning

The most important TCP tuning areas since kernel 4.9 are:

packet pacing
dynamic TSO sizing
TCP small queues
BBR TCP congestion algorithm

Definitions

Gb = gigabit

Merlin's Wisdom Project

Or: “Everybody likes being given a glass of water.”

By Merlin Mann.

It's only advice for you because it had to be advice for me.

	class FakeRecord
	# ActiveModel plumbing to make `form_for` work
	extend ActiveModel::Naming
	include ActiveModel::Conversion
	include ActiveModel::Validations

	attr_accessor :foo, :bar

	validates :foo, presence: true

	///$(which true);FLAGS="-g -Wall -Wextra --std=c17 -O1 -fsanitize=address,undefined";THIS_FILE="$(cd "$(dirname "$0")"; pwd -P)/$(basename "$0")";OUT_FILE="/tmp/build-cache/$THIS_FILE";mkdir -p "$(dirname "$OUT_FILE")";test "$THIS_FILE" -ot "$OUT_FILE" \|\| $(which clang \|\| which gcc) $FLAGS "$THIS_FILE" -o "$OUT_FILE" \|\| exit $?;exec bash -c "exec -a \"$0\" \"$OUT_FILE\" $([ $# -eq 0 ] \|\| printf ' "%s"' "$@")"
	#include <stdio.h>

	int main() {
	printf("Hello world!\n");
	return 0;
	}

	#!/bin/bash

	set -e

	CONTENTS=$(tesseract -c language_model_penalty_non_dict_word=0.8 --tessdata-dir /usr/local/share/tessdata/ "$1" stdout -l eng \| xml esc)

	hex=$((cat <<EOF
	<?xml version="1.0" encoding="UTF-8"?>
	<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
	<plist version="1.0">

	apiVersion: v1
	kind: ConfigMap
	metadata:
	name: example
	namespace: default
	data:
	APPLICATION_HOST: example.com
	LANG: en_US.UTF-8
	PIDFILE: /tmp/server.pid
	PORT: "3000"