Jose Quintana joseluisq

These are VMs running built with JavaScript/WASM allowing you to run an operating system within your browser, all client side.

Emulators

VMs

Notes on my Arch Linux installation

Notes on my Arch Linux installation
Create the partitions

Linux Desktop on Apple Silicon in Practice

I bought M1 MacBook Air. It is the fastest computer I have, and I have been a GNOME/GNU/Linux user for long time. It is obvious conclusion that I need practical Linux desktop environment on Apple Silicon.

Fortunately, Linux already works on Apple Silicon/M1. But how practical is it?

Two native ports exist.

A half-hour to learn Zig

This is inspired by https://fasterthanli.me/blog/2020/a-half-hour-to-learn-rust/

Basics

the command zig run my_code.zig will compile and immediately run your Zig program. Each of these cells contains a zig program that you can try to run (some of them contain compile-time errors that you can comment out to play with)

NOTICE: This guide is no longer relevant, as a lot has changed over time and Go supports Apple Silicon natively just fine now!

Compile Go for Apple Silicon (M1)

Follow these short instructions on how to compile Go for Apple Silicon (M1). From here on out, we may simply refer to it as the "ARM device".

This entire process should only take about 5-10 minutes, but please read through everything carefully, in order to avoid any potential issues along the way.

Note that at the time of writing this, Go was not yet officially available for Apple's ARM.

Memory profiling Rust code with heaptrack in 2019

I recently ran into a classic case of "our code is using way more memory than it should". So I took my first dive into memory profiling Rust code. I read several posts about this, including the following

Installing Fish shell on MacOS (Intel and M1) using brew

Fish is a smart and user-friendly command line (like bash or zsh). This is how you can instal Fish on MacOS and make your default shell.

Note that you need the https://brew.sh/ package manager installed on your machine.

Install Fish

brew install fish

Renew GPG key

Given that your key has expired.

$ gpg --list-keys
$ gpg --edit-key KEYID

Use the expire command to set a new expire date:

	use futures::StreamExt;
	use std::error::Error;
	use tokio;
	use tokio::macros::support::Pin;
	use tokio::prelude::*;
	use tokio::time::{Duration, Instant};

	pub fn main() -> Result<(), Box<dyn std::error::Error>> {
	let mut multi_threaded_runtime = tokio::runtime::Builder::new()
	.threaded_scheduler()

	#!/usr/bin/env bash

	# To fix the " gpg: WARNING: unsafe permissions on homedir '/home/path/to/user/.gnupg' " error
	# Make sure that the .gnupg directory and its contents is accessibile by your user.
	chown -R $(whoami) ~/.gnupg/

	# Also correct the permissions and access rights on the directory
	chmod 600 ~/.gnupg/*
	chmod 700 ~/.gnupg