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.
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.
This document was created back in 2020 and might not be actual nowadays. It is not supported anymore, so use thise information at your own risk.
- Download WSL2 Kernel
- run
wsl --set-default-version 2in windows command line, so that all future WSL machine will use WSL2.
| #define _GNU_SOURCE | |
| #include <errno.h> | |
| #include <sched.h> | |
| #include <signal.h> | |
| #include <stdio.h> | |
| #include <stdlib.h> | |
| #include <sys/mount.h> | |
| #include <sys/stat.h> | |
| #include <sys/syscall.h> | |
| #include <sys/types.h> |
TL;DR
Create a backup:
sudo -Hiu postgres pg_dumpall > mybackup.sqlInstall Postgres 11, and then:
⚠️ Note 2023-01-21
Some things have changed since I originally wrote this in 2016. I have updated a few minor details, and the advice is still broadly the same, but there are some new Cloudflare features you can (and should) take advantage of. In particular, pay attention to Trevor Stevens' comment here from 22 January 2022, and Matt Stenson's useful caching advice. In addition, Backblaze, with whom Cloudflare are a Bandwidth Alliance partner, have published their own guide detailing how to use Cloudflare's Web Workers to cache content from B2 private buckets. That is worth reading,
| # permanent apple keyboard keyswap | |
| echo "options hid_apple swap_opt_cmd=1" | sudo tee -a /etc/modprobe.d/hid_apple.conf | |
| update-initramfs -u -k all | |
| # Temporary & instant apple keyboard keyswap | |
| echo '1' | sudo tee -a /sys/module/hid_apple/parameters/swap_opt_cmd | |
| # Windows and Mac keyboards - GUI (Physical Alt is Ctrl, Physical Super is Alt, Physical Ctrl is Super) | |
| setxkbmap -option;setxkbmap -option altwin:ctrl_alt_win |
| # Download new packages but don't install them | |
| # Save in /etc/systemd/system/ | |
| [Unit] | |
| Description=Pacman Automatic Download (no install) service | |
| After=network-online.target | |
| [Service] | |
| # Wait time if process hangs | |
| TimeoutStopSec=5m |
| # lib/tasks/db.rake | |
| namespace :db do | |
| desc "Dumps the database to db/APP_NAME.dump" | |
| task :dump => :environment do | |
| cmd = nil | |
| with_config do |app, host, db, user| | |
| cmd = "pg_dump --host #{host} --username #{user} --verbose --clean --no-owner --no-acl --format=c #{db} > #{Rails.root}/db/#{app}.dump" | |
| end | |
| puts cmd |
| /* | |
| This code should be pasted within the files where this function is needed. | |
| This function will not create any code conflicts. | |
| The function call is similar to printf: ardprintf("Test %d %s", 25, "string"); | |
| To print the '%' character, use '%%' | |
| This code was first posted on http://arduino.stackexchange.com/a/201 | |
| */ |