Florian Klien flowolf

Synergy between Linux and Mac Os X

sharing a mouse and keyboard between two computers

A quick writeup for a working setup (Linux is Server, Mac is Client)

synergy.conf:

section: screens
    linux:
 mac:

Synchronous multi-room sound casting of Bluetooth, Airplay, Line-In and Spotitfy

ALL CREDITS TO @badaix AND @BaReinhard

This will setup a raspberry-pi-3 as a snapcast-server and snapcast-client.
Possible music sources for the snapserver-component: Bluetooth, Airplay, Spotify, Line-In (more to come eg. RTP)
Music sinks (snapclients): usb soundcard connected to my stereo, another Pi

To Do:

Energy saving by disabling onboard bluetooth, wifi and soundcard

CEC-Detection

Want to control a TV over HDMI-CEC via a remote RasPi? Include the following as a switch:

platform: command_line
switches:
    tv_power:
      command_on: "ssh pi@<ip_address> -i /home/homeassistant/.homeassistant/id_homeassistant 'echo on 0 | cec-client -s -d 1'"
 command_off: "ssh pi@ -i /home/homeassistant/.homeassistant/id_homeassistant 'echo standby 0 | cec-client -s -d 1'"

Nginx Cheat Sheet

(from Understanding Nginx Server and Location Block Selection Algorithms - https://goo.gl/YyzshP)

server {

	esphome:
	name: veneer_display
	platform: ESP8266
	board: d1_mini

	wifi:
	networks:
	- ssid: !secret esphome_wifi_ssid1
	password: !secret esphome_wifi_pass1
	# - ssid: !secret esphome_wifi_ssid2

	Please find below the various piece of code that together control my RGB light to loop in Rainbow.
	Every two seconds, it change from one colour to another based on the value of the second.
	So it compute 30 differents RGB value in a "circle", all with the same Saturation and Brightness both forced to 1.0
	The transition from one colour to another is done in one seconds.

	The name of my Tradfri RGB light bulb is "light.couleur"

	A link to my video on Twitter:
	https://twitter.com/DavidGlaude/status/1059596285991366657

	import { toUpper } from 'lodash'

	export const codeToFlag = (code: string): string =>
	String.fromCodePoint(
	...toUpper(code)
	.split('')
	.map(c => 127397 + c.charCodeAt(0)),
	)

	// codeToFlag('fr') => 🇫🇷

	#!/boot/bzImage

	# Linux kernel userspace initialization code, translated to bash
	# (Minus floppy disk handling, because seriously, it's 2017.)
	# Not 100% accurate, but gives you a good idea of how kernel init works
	# GPLv2, Copyright 2017 Hector Martin <[email protected]>
	# Based on Linux 4.10-rc2.

	# Note: pretend chroot is a builtin and affects the current process
	# Note: kernel actually uses major/minor device numbers instead of device name

	#!/bin/bash

	# Basic script to set custom project hook and share it with other developpers
	# original script from http://stackoverflow.com/questions/3462955/putting-git-hooks-into-repository/3464399#3464399
	#
	# cd [path-of-the-script]
	# . install.sh
	#
	# Folders usecase
	# /.git

	default['sshd']['sshd_config']['AuthenticationMethods'] = 'publickey,keyboard-interactive:pam'
	default['sshd']['sshd_config']['ChallengeResponseAuthentication'] = 'yes'
	default['sshd']['sshd_config']['PasswordAuthentication'] = 'no'