Marc Aubé marcaube

Display improvements for the Corne-ish Zen keyboard

This note details the changes made to the Zen and ZMK codebase to improve the experience of e-ink displays.

Getting the changes

You can test out below changes using your Zen config repo by modifying your config/west.yml file, following ZMK instructions:

manifest:
  remotes:
 - name: caksoylar

the definitive deep dive into the .git folder

Thanks for joining us for "the definitive deep dive into the .git folder". It's an incredible live-demo where we open every file in the .git folder and show what it does.

Links

Here's the links we saw:

Latency Comparison Numbers (~2012)

Name
L1 cache reference	0.5	ns
Branch mispredict	5	ns
L2 cachereference	7	ns			14x L1 cache
Mutex lock/unlock	25	ns
Main memory reference	100	ns			20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy	3,000	ns	3	us

	# Delete all forks that haven't been updated since 2020
	gh auth refresh -h github.com -s delete_repo
	gh search repos \
	--owner tonybaloney \
	--updated="<2020-01-01" \
	--include-forks=only \
	--limit 100 \
	--json url \
	--jq ".[] .url" \ \| xargs -I {} gh repo delete {} --confirm

	// Extract JSON payload from SHC QR code (without any kind of private/public key verification)

	// Credits + inspiration
	// https://github.com/dvci/health-cards-walkthrough/blob/main/SMART%20Health%20Cards.ipynb

	// Usage
	// $ node shc.js "shc:/01234569…"

	const zlib = require("zlib");

	addEventListener('fetch', event => {
	event.respondWith(fetchAndApply(event.request))
	})

	async function fetchAndApply(request) {
	let response = await fetch(request)

	let referer = request.headers.get('Referer')
	let contentType = response.headers.get('Content-Type') \|\| ''
	if (referer && contentType.startsWith('image/')) {

	import datetime
	import random
	from typing import List


	def main():
	random.seed(172)
	count = 1_000_000
	data = build_data(count)
	run_with_except(data)

	TEAM \| POINTS \| LAST SUBMIT
	----------------------------------+--------+-------------------
	<CA> HubrETS Hackin'' \| 155 \| 2020/05/17 14:58
	<CA> Les Gentils Pirates \| 133 \| 2020/05/17 14:42
	<CA> CLICKESTI \| 129 \| 2020/05/17 14:07
	<US> Skiddies as a Service \| 125 \| 2020/05/17 14:44
	<CA> cold_root \| 116 \| 2020/05/17 14:38
	<CA> Panique Au Village \| 94 \| 2020/05/17 14:47
	<CA> Shopify \| 84 \| 2020/05/17 14:47
	<CA> segfaults \| 77 \| 2020/05/17 14:55

	title: Suspicious Keyboard Layout Load
	description: Detects the keyboard preload installation with a suspicious keyboard layout, e.g. Chinese, Iranian or Vietnamese layout load in user session on systems maintained by US staff only
	references:
	- https://renenyffenegger.ch/notes/Windows/registry/tree/HKEY_CURRENT_USER/Keyboard-Layout/Preload/index
	author: Florian Roth
	date: 2019/10/12
	logsource:
	product: windows
	service: sysmon
	definition: 'Requirements: Sysmon config that monitors \Keyboard Layout\Preload subkey of the HKLU hives - see https://github.com/SwiftOnSecurity/sysmon-config/pull/92/files'

	#!/bin/sh
	# This script will fetch the Googlevideo ad domains and append them to the Pi-hole block list.
	# Run this script daily with a cron job (don't forget to chmod +x)
	# More info here: https://discourse.pi-hole.net/t/how-do-i-block-ads-on-youtube/253/136

	# File to store the YT ad domains
	FILE=/etc/pihole/youtube.hosts

	# Fetch the list of domains, remove the ip's and save them
	curl 'https://api.hackertarget.com/hostsearch/?q=googlevideo.com' \