# Bornhack 2018

How do you take your summer holidays? Some seek rest by laying down the sun like an iguana warming up their blood. Just doing nothing to compensate for the hard work over the year. I’m not against that, I do it too. But I found a new alternative, you can go out and learn something new. Only a year ago I discovered hacker camps, an outdoor tent camp event for hackers and makers.

# Forgetting - Our filter for the irrelevant

I just stumbled upon this article: To Remember, the Brain Must Actively Forget | Quanta Magazine, and it served me as quite a confirmation bias. I always reflected why it is so hard to learn something, or remember something. Consider, what a great super power it would be to remember it all. The true new point of view for me here is the merit of forgetting. If we remembered everything, we would be completely inefficient because our brains would always be swamped with superfluous memories.

# It's not about having a backup, but being sure the backup works

Since I discovered BorgBackup (short: Borg) I have felt way more confident about my backups. Borg gives you a space efficient storage of backups, data is saved encrypted, and you get good versioning of backups. I solved all my previous inconveniences when just using rsync. I lacked the way to keep track and order different versions. Compression and encryption as a great plus even when I just keep my backups locally.

# Participating to my first hackathon

I’m currently looking for my next life project and to figure it out I trying a lot of stuff. To that goal I’m getting involved in as many things as possible. Last week, I went to the Innolabs healthcare hackathon in Berlin. It was quite an awesome event and I learned a lot from it. I never really worked on the health sector before, thus it was a nice introductory experience.

# Org-CV an Org export backend for CV

I’m again in this time of my life where I’m looking for a new long term project to work on. Because optimization is my favorite way of procrastination, instead of just making a Curriculum Vitae (CV) for job applications, I decided that I need to implement an org-mode export backend. This backend will let me keep my CV in org-mode and then export it to $$\LaTeX$$ or markdown for my website.

# A year on my cloud

It has been a very complicated year regarding my cloud services. I started completely unaware of the difficulties, and it has been a fun and painful ride. The fact that there are projects aiming to provide personally controlled cloud services is great. The fact that there is people being paid for doing this kind of work for companies means that it ain’t that simple to manage. I encourage to try the sovereign project, which assists you in building and maintaining your own private cloud.

# Visualizing a Bethe lattice

During my PhD I always wanted to have an interactive way of plotting a nice looking Bethe Lattice and particular to my work a Dimer Bethe lattice. Because this visualization wasn’t an essential part of my research I never investigated into it. It is enough to draw them on paper for any practical purpose. I was then confronted with my PhD oral presentation, great opportunity to procrastinate and get the nice unessential plots done.
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#### Óscar Nájera

Data Scientist, Hacker & Recovering Physicists

PhD in Theoretical Physics

The world