unsp unspezifisch

If you're using a high-end bluetooth headset on your Macbook Pro it's likely your mac is using an audio codec which favors battery efficiency over high quality. This results in a drastic degradation of sound, the SBC codec is the likely culprit, read more about it here.

Find out what codec you're using

Play a song on your headphones
Option (⌥) click the Bluetooth button at the top of your screen
If you're using AAC or aptX, you can stop here—those are the highest quality codecs.

Change your codec to AAC or aptX

Sourced from: https://serverfault.com/questions/211425/can-etckeeper-be-used-to-track-config-files-outside-of-etc

Create a new etckeeper script: vim /etc/etckeeper/commit.d/20mirror-outside-files

#!/bin/sh
set -e

# Based on nealmcb's + ErebusBat's script from http://serverfault.com/questions/211425/

macOS Internals

Understand your Mac and iPhone more deeply by tracing the evolution of Mac OS X from prelease to Swift. John Siracusa delivers the details.

Starting Points

How to use this gist

You've got two main options:

	SPC
	SPC: find file
	, switch buffer
	. browse files
	: MX
	; EX
	< switch buffer
	` eval
	u universal arg
	x pop up scratch

	{
	"Add include guard": {
	"prefix": "guard",
	"description": "Adds an ifndef include guard to a C/C++ header",
	"body": [
	"#ifndef __${TM_FILENAME/^([^\\.])\\..$/${1:/upcase}/}_${TM_FILENAME/^.\\.([^\\.])$/${1:/upcase}/}__",
	"#define __${TM_FILENAME/^([^\\.])\\..$/${1:/upcase}/}_${TM_FILENAME/^.\\.([^\\.])$/${1:/upcase}/}__",
	"",
	"$0",
	"",

	10 print chr$(147)
	20 ca=1024:cp=54272:r=25:co=40
	30 poke 53280,0:poke 53281,0
	40 forw=3to50:fori=1to12:forj=0to12:k=i+j
	50 c=j+j+j/(i+3)+i*w/12
	60 k1=ca+i+(cok):i1=ca+k+(coi):c1=cp+k1:c2=cp+i1
	70 k2=ca+(co-i)+(co(r-k)):i2=ca+(co-k)+(co(r-i)):c3=cp+k2:c4=cp+i2
	80 k3=ca+(co-i)+(cok):c5=cp+k3:i3=ca+k+(co(r-i)):c6=cp+i3
	90 k4=ca+(co-k)+(coi):c7=cp+k4:i4=ca+i+(co(r-k)):c8=cp+i4
	100 poke k1,81:poke c1,c:poke i1,81:poke c2,c

	#!/bin/bash

	ICON_BLUETOOTH=""
	ICON_BATTERY_FULL=""
	ICON_BATTERY_THREE_QUARTERS=""
	ICON_BATTERY_HALF=""
	ICON_BATTERY_QUARTER=""
	ICON_BATTERY_EMPTY=""
	BLUETOOTH_BATTERY_STATUS=$HOME/src/scripts/bluetooth_battery_status.sh

	#1 Openssh server
	sudo apt install -y openssh-server
	sudo systemctl enable ssh
	sudo systemctl start ssh
	sudo ufw enable
	sudo ufw allow ssh

	#2 Docker (https://docs.docker.com/engine/install/ubuntu/)
	sudo apt-get install -y apt-transport-https ca-certificates curl gnupg-agent software-properties-common
	curl -fsSL https://download.docker.com/linux/ubuntu/gpg \| sudo apt-key add -