runeksvendsen

# https://github.com/diddledani/macOS-Linux-VM-with-Rosetta#setting-up-rosetta

# 1. Run `sudo mkdir /var/run/rosetta`
# 2. Run `sudo mount -t virtiofs ROSETTA /var/run/rosetta`
# 3. Add the snippet below to /etc/nixos/configuration.nix

boot.binfmt.registrations.rosetta = {
  interpreter = /var/run/rosetta/rosetta;
  magicOrExtension = ''\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x3e\x00'';
  mask = ''\xff\xff\xff\xff\xff\xfe\xfe\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff'';

rob-hills

Summary

Random set of notes and links that have helped me in the saga to get Ubuntu 22.04 up and running on my 2017 MacBook Pro These notes are mainly for myself in the event that I have to do this again some day. But if you find them helpful, that's great.

Important update

Unfortunately the MacBookPro that I bought second hand turned out to be a dud with some serious hardware flaws that didn't show up until a couple of months after I'd bought it.

I've since purhcased another laptop so I'm not going to be able to maintain this GIST.

I'll leave it here for now in case others want to contribute updates, or clone it. If you feel it's out of date or misleading or a waste of time, let me know in the comments and I'll remove it.

cdepillabout

let
  nixpkgs-src = builtins.fetchTarball {
    # master of 2021-01-05.
    url = "https://github.com/NixOS/nixpkgs/archive/1a57d96edd156958b12782e8c8b6a374142a7248.tar.gz";
    sha256 = "1qdh457apmw2yxbpi1biwl5x5ygaw158ppff4al8rx7gncgl10rd";
  };

  pkgs = import nixpkgs-src {
    config = {
      # allowUnfree may be necessary for some packages, but in general you should not need it.

andrebrait

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.

dlqqq

Random "Freezing" with AMD Ryzen CPUs

It seems that numerous GNU/Linux users (including myself) have been having issues with the system randomly "freezing" during light usage. From journalctl output and anecdotal accounts, it is speculated that the AMD Ryzen CPUs do not support other C-states for power management very well (at least on GNU/Linux distributions), and the freezing may be resolved by limiting the C-state of the CPU.

Possible Solution

Limiting the C-state of the CPU can be done through the addition of the following kernel boot parameter.

processor.max_cstate=1

wagenet

glibc Versions

List of oldest supported version of top 10 Linux Distros and their glibc version according to distrowatch.com.

Summary

Out of all versions with published EOLs, 2.12 is the oldest glibc still active, found in CentOS 6.8.

If CentOS 6 and 7 are eliminated, the oldest glibc is 2.23 in Ubuntu and Slackware.

idStar

#! /usr/bin/osascript

(*
---------------------------------------------------------------------------------

 Script: SpreadsheetExportToCSV

 Command-line tool to convert a spreadsheet document to CSV
 This AppleScript is tested with and compatible with Apple iWork Numbers 3.6,
 current as at October 23, 2015.

darkwave

import com.google.zxing.*;
import java.io.ByteArrayInputStream;
import javax.imageio.ImageIO;
import com.google.zxing.common.*;
import com.google.zxing.client.j2se.*;
import android.graphics.Bitmap;
import ketai.camera.*;

KetaiCamera cam;
boolean globalHistogram = false;

mathiasbynens

#!/bin/bash

if [ "$1" = "-h" -o "$1" = "--help" -o -z "$1" ]; then cat <<EOF
appify v3.0.1 for Mac OS X - http://mths.be/appify
Creates the simplest possible Mac app from a shell script.

Appify takes a shell script as its first argument:

    `basename "$0"` my-script.sh

rkumar

#!/bin/bash
#
####################################
# iTunes Command Line Control v1.0
# written by David Schlosnagle
# created 2001.11.08
# edit    2010.06.01 rahul kumar
####################################

showHelp () {