nucatus

Karabiner layouts for symbols and navigation

Gavin Sinclair, January 2022

Introduction

I use Karabiner (configured with Gosu) to make advanced key mappings on my Apple computer. Karabiner allows you to create “layers”, perhaps simulating those on a programmable mechanical keyboard. I make good use of these layers to give me easy access (home-row or nearby) to all symbols and navigational controls, and even a numpad.

The motivation is to keep hand movement to a minimum. Decades of coding on standard keyboards has unfortunately left me with hand and wrist pain. I will soon enough own a small split keyboard which will force me to use layers to access symbols etc., so this Karabiner solution, which has evolved over months, is a training run for that.

nucatus

Technical details for https://stackoverflow.com/a/44169445/6730571

Details of investigation:

On a base system, /usr/bin/java is a symlink that points to /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java, which is an Apple wrapper tool that locates and executes the actual java.

(Do not touch anything in those 2 system directories. It should actually be impossible due to "System Integrity Protection" anyway.)

If you don't have Java installed, attempting to execute java will open a dialog that invites you to install it.

nucatus

#!/bin/bash

# from https://tools.ietf.org/html/draft-moskowitz-ecdsa-pki-03 (adapted for EdDSA)

# Workdir is set to $1, $workdir or $PWD (in this order of precedence)
workdir=${1:-${workdir:-$PWD}}
OPENSSL=${OPENSSL:-$(which openssl)}
OSSL_APPS_OPT="-engine libsuola"
#OSSL_ENCRYPT_OPT="-aes256"

nucatus

/* wiegand-gpio.c.
 *.
 * Wiegand test driver using GPIO an interrupts..
 *
 */

/* Standard headers for LKMs */
#include <linux/module.h><----->/* Needed by all modules */
#include <linux/kernel.h><----->/* Needed for KERN_INFO */
#include <linux/kobject.h>

nucatus

package spcx.octopus.test;

import org.apache.commons.lang3.StringUtils;
import org.assertj.core.api.Assertions;
import org.junit.Assert;
import org.junit.Test;
import org.slf4j.Logger;

import java.time.Instant;

nucatus

package spcx.octopus.test;

import org.assertj.core.api.Assertions;
import org.junit.Test;
import org.slf4j.Logger;

import java.time.Instant;

import static org.slf4j.LoggerFactory.getLogger;

nucatus

import java.util.Collection;
import java.util.stream.Collectors;

public class TestCase
{
    Class clazz;
    Collection<Target> targets;

    public Collection<Target> getTargets()
    {

nucatus

#!/bin/bash

if [ "$#" -ne 2 ] || ! [ -d "$1" ]; then
  echo "Usage: $0 /Path/To/Certificate CERT_NAME" >&2
  exit 1
fi

# This assumes the cert is in the same directory as the script
source="$( cd $1 && pwd )"
# ca-certificate of the VM

nucatus

### Keybase proof

I hereby claim:

  * I am nucatus on github.
  * I am nucatus (https://keybase.io/nucatus) on keybase.
  * I have a public key whose fingerprint is C1EB 157A 9E1A 47E5 E878  CC77 C49B 78A1 1B71 0526

To claim this, I am signing this object: