Ian Chamberlain ian-h-chamberlain

https://logs.nix.samueldr.com/home-manager/2020-06-24#3652401;

NIX_PATH=nixpkgs=http://nixos.org/channels/nixos-21.05/nixexprs.tar.xz:home-manager=https://github.com/nix-community/home-manager/archive/release-21.05.tar.gz:nix-on-droid=https://github.com/t184256/nix-on-droid/archive/release-21.05.tar.gz nix repl
nix-repl> hm = import <home-manager/modules> { configuration = ~/.config/nixpkgs/home.nix; pkgs = import <nixpkgs> {}; }
~> hm.config.TAB

Introduction

After moving to Linux and KDE Plasma from macOS, I only missed one thing that I used all the time: The Screenshot tool. The Shortcuts on macOS have been engraved in my head after probably thausand of uses so I figured I'd give replicating them a try.

Creating new Shortcuts was surprisingly easy so here is a rundown of it

NOTE: A recent edit of this document now includes a Plasma Native approach using Spectacle.

Here is the best setup (I think so :D) for K-series Keychron keyboards on Linux.

Note: many newer Keychron keyboards use QMK as firmware and most tips here do not apply to them. Maybe the ones related to Bluetooth can be useful, but everything related to Apple's keyboard module (hid_apple) on Linux, won't work. As far as I know, all QMK-based boards use the hid_generic module instead. Examples of QMK-based boards are: Q, Q-Pro, V, K-Pro, etc.

Most of these commands have been tested on Ubuntu 20.04 and should also work on most Debian-based distributions. If a command happens not to work for you, take a look in the comment section.

Make Fn + F-keys work (NOT FOR QMK-BASED BOARDS)

Older Keychron keyboards (those not based on QMK) use the hid_apple driver on Linux, even in the Windows/Android mode, both in Bluetooth and Wired modes.

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

Update SENA from Linux

In May, 2016, I completely switched all of my home computing environments to Linux. As a result, I've had to find workarounds for things which require Windows. This article outlines my first attempt to update my SENA 10S helmet communicator from KUbuntu 16.04 Linux.

What works and what doesn't

If you follow this guide, I'll state up front what success you'll expect.

Installing the Sena Device Manager works.
Connecting SENA 10S via USB works.

	#!/bin/bash

	# Multicore minterpolate in ffmpeg
	# Just slice & process & concat
	# NB: The concat points between slices may be weird

	# Default arguments
	ff=/usr/bin/ffmpeg
	fps=60
	dur=00:00:10

	#!/usr/bin/fish

	# You can add this to your ~/.config/fish/config.fish

	function __fish_complete_bash
	set cmd (commandline -cp)
	bash -c "source get-bash-completions.sh; get_completions '$cmd'"
	end

	# Set the tool to use bash completions

	// This script takes an iTerm Color Profile as an argument and translates it for use with Visual Studio Code's built-in terminal.
	//
	// usage: `node iterm-colors-to-vscode.js [path-to-iterm-profile.json]
	//
	// To export an iTerm Color Profile:
	// 1) Open iTerm
	// 2) Go to Preferences -> Profiles -> Colors
	// 3) Other Actions -> Save Profile as JSON
	//
	// To generate the applicable color settings and use them in VS Code:

	{
	"nginx_access_log" : {
	"title" : "NGINX NetData Access Log",
	"description" : "NGINX NetData Access Log Format",
	"url" : "https://github.com/netdata/netdata/blob/master/collectors/python.d.plugin/web_log/web_log.conf",
	"multiline" : false,
	"regex" : {
	"netdata_vhost" : {
	"pattern" : "(?P<host>[a-zA-Z\\d.-_\\[\\]]+)\\s+(?P<server_port>\\d+)\\s+(?P<remote_addr>[\\da-f.:]+)\\s+[\\w\\.\\-]+\\s+(?<remote_user>\\S+)\\s+\\[(?<timestamp>[^\\]]+)\\]\\s+\"(?:\\-\|(?<request>\\w+) (?<request_uri>[^ \\?]+)(?:\\?(?<request_uri_query>[^ ]*))? (?<request_version>[\\w\\\/\\.]+))\"\\s+(?P<status>[1-9]\\d{2})\\s+(?P<body_bytes_sent>\\d+)\\s+(?P<request_length>\\d+)\\s+(?P<request_time>\\d+(?:.\\d+)?)\\s+(?:\\-\|(?P<upstream_response_time>\\d+(?:.\\d+)?))\\s+\"(?<http_referer>[^\"]+)\"\\s+\"(?<http_user_agent>[^\"]+)\""
	}

	/* Generate colors using: `plutil -convert json` in your terminal */
	const col = [] // run your .itermcolors file through the above parser and replace the array with the output

	function componentToHex(c) {
	const hex = c.toString(16)
	return hex.length === 1 ? `0${hex}` : hex
	}

	const mapping = {
	'terminal.background':'Background Color',