Bem disse Andreas Burkert que somos feitos do pó das estrelas

Astrophysicists Szabolcs Marka at Columbia University and Imre Bartos at the University of Florida, have identified a violent collision of two neutron stars 4.6 billion years ago as the likely source of some of the most coveted matter on Earth.

This single cosmic event, close to our solar system, gave birth to 0.3 percent of the Earth’s heaviest elements, including gold, platinum and uranium, according to a new paper appearing in the May 2 issue of Nature.

“This means that in each of us we would find an eyelash worth of these elements, mostly in the form of iodine, which is essential to life,” Bartos said. “A wedding ring, which expresses a deep human connection, is also a connection to our cosmic past predating humanity and the formation of Earth itself, with about 10 milligrams of it likely having formed 4.6 billion years ago.”

Two neutron stars collided near the solar system billions of years agoScienceDaily

Updates on my Arch/Manjaro repository

Ever since Carlos Silva left a comment on my last post about this repository, I was left wondering if it wouldn’t be better to migrate my current VM to Scaleway. The price/specs seemed better and for the marginal difference of €1 I would get a dual-core virtual machine with 2GB of RAM and 50Gb of disk space.

After a couple of weeks of reflection, I bought a “Start1-S” VPS for €3,99/month and I’ve been (successfully) testing aurto to manage the repository updates. Things have been working out so great that I bought the userrepository.eu domain.

(I will add a certificate to the website, I promise!)

The address has all the instructions for you to add it to your system. But in case you can’t visit right now, here’s what you need to add to the /etc/pacman.conf file:

[aurto]
Server = http://51.15.233.8
SigLevel = Optional TrustAll

I remind you, dear reader, that this repo only contains AUR packages.

I’ve built a Manjaro repository

Due to my own dumbness (I mistakenly deleted my Ubuntu partition), I installed Manjaro, using the Manjaro Architect release, on my laptop. I’d been thinking about doing it for a while and finally made it because I was too stupid to read the instructions from cfdisk. The shit you create yourself because you’re in a hurry…

Anyway, after installing Manjaro, I started reading a bit about this distro packaging and how I could leverage AUR and binary packages. Inspired by the work of Arcan1s, I bought a cheap VPS from OVH [almost €3/month] and built my repository using Arcan1s scripts. It took a bit of fiddling around the config file and the scripts to customize it to the VPS low raw power, but I eventually got it.

One thing you’ll notice is the packages are not signed. I do intend to start signing them but I don’t have a time frame for that just yet.

If you want to try out my repository, made from AUR packages, add this to your /etc/pacman.conf file:

[bruno]
Server = http://51.77.244.118/$arch
SigLevel = Optional TrustAll

The server checks for updates for the packages every 6 hours. This is mainly due to the fact that the VPS is low end – only 1vCPU @2GHz, 2GB of RAM and 20GB of disk space.