Tortue Torche tortuetorche

npx create-expo-app@latest
npm run reset-project
rm -rf node_modules
npm i react-native-fast-encoder web-streams-polyfill @stardazed/streams-text-encoding react-native-fetch-api
(optional) echo "BROWSER=none # prevents browser from auto opening" >> .env

Raspberry 4B - Boot from SD and rootfs on USB

Update

RPi4 now supports booting directly from USB. First update to get an eeprom which supports USB Boot, then configure the bootloader to boot from USB.

Original guide

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Votes: 72

A secret byte you want to read is stored at inaccessible memory location priv_mem.
The sender triggers an access exception by attempting to read priv_mem.
Due to CPU optimization (out-of-order execution), the load of secret from priv_mem and the use of its value in (4) and (5) below may execute before the exception is triggered.
Calculate an offset into a known array probe by multiplying secret by the width of a cache line (or whatever block size the CPU typically fetches, like a 4096-byte page). This guarantees each of those 256 possible offsets will cache separately.
Load probe[offset], which causes the CPU to cache exactly one chunk of of our array, populating one cache line.
The exception finally triggers, clearing the modified registers...but cached data is not excised.
Iterate over all 256 offsets into probe to find out which one loads fast. You've determined the value of secret.

	# 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	# PLEASE CHECKOUT THAT PROJECT INSTEAD OF THIS OUTDATED SETUP SCRIPT.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 \

	/*
	ERB template chunk from The Feed's display of emails:

	<section class="postings postings--feed-style" id="postings"
	data-controller="pagination" data-pagination-root-margin-value="40px">
	<%= render partial: "postings/snippet", collection: @page.records, as: :posting, cached: true %>

	<%= link_to(spinner_tag, url_for(page: @page.next_param),
	class: "pagination-link", data: { pagination_target: "nextPageLink", preload: @page.first? }) unless @page.last? %>
	</section>

	export function reduceToParams(elements) {
	return elements.reduce((hash, node) => Object.assign(hash, { [node.name]: node.value }), {})
	}

	export function stopEverything(e) {
	e.preventDefault()
	e.stopPropagation()
	e.stopImmediatePropagation()
	}

	// DISCLAIMER : You can now probably use `data-turbo-action="advance"` on your frame to perform what this controller is aiming to do
	// https://turbo.hotwired.dev/handbook/frames#promoting-a-frame-navigation-to-a-page-visit
	// Note that you probably want to disable turbo cache as well for those page to make popstate work properly

	import { navigator } from '@hotwired/turbo'
	import { Controller } from '@hotwired/stimulus'
	import { useMutation } from 'stimulus-use'

	export default class extends Controller {
	connect (): void {

	<?php // @codingStandardsIgnoreFile
	namespace Helper;

	use Exception;

	// Select2 helpers for Codeception
	// See: https://select2.org
	//
	// Works with Select2 version 4.0 or greater
	// Which is a jQuery based replacement for select boxes.

	/**
	* Fetch the body of an iFrame.
	*/
	Cypress.Commands.add('getIframe', () => {
	return cy
	.get('iframe')
	.its('0.contentDocument.body', { log: false })
	.should('not.be.empty')
	.then((body) => {
	cy.wrap(body, { log: false });