FOSDEM 2013 – review

The first weekend of February of every year is always dedicated to FOSS Developers Meeting (FOSDEM) in Brussels.

FOSDEM is always a great opportunity to meet all my old Fedora and Mozilla friends from around the world. Unfortunately I didn’t get in time in Brussels in order to attend Fedora community’s dinner but I met them afterwords in the Delirium Cafe enjoying a large variety of beers. Right Christoph 😉

Saturday morning wake up is always tricky but along we Nikos we managed to get in time in order to prepare the Fedora booth along with Jiri where there was a surprising waiting for us as you can see in the picture above. Generally the most of my time I spend it in attending sessions but I did some contribution in Mozilla’s and Fedora’s booths too. This year’s Mozilla and Fedora booths where better than any other year with a lot of new and passionate people spreading the word of their favourite open source project and seeking more and more contributors.

It was another great year with a lot of enlightening presentations, a lot of awesome and brainstorming conversations with hackers from all over the world and of course a lot of hacking. The discussions you have outside dev rooms with amazing hackers, the brainstorming and all this energy can’t be compared with anything in the world. I want to give an extra credit to flash Fredy and Panos for having a live demo session in Mozilla’s booth, presenting Firefox OS devices the whole weekend! You were amazing guys, thank you! Finally I want to thank all the Reps who spend some time in booth talking with people, answering questions and solving problems.

As I blog posted before, more than 40 Greek hackers took over Brussels and FOSDEM where some of them run 8 sessions regarding open source software, open source hardware, their awesome projects or the project where they contribute in.

But this year was special for me too because it was my first time attending FOSDEM as a speaker. At Sunday noon I had a session in Mozilla’s dev room regarding debugging Firefox OS and open web apps as well as Gaia apps too. Thank you Clarista and Benoit for the excellent organization of the Mozilla presence. In general I think my presentation was a success despite the stress I had on stage. You can find my presentation online and you can always mail me for anything regarding debugging Firefox OS and Gaia.

World, watch out! Firefox OS is coming and it’s going to be astonishing!

FOSDEM 2013 is over and I cant wait a year for the next one! I am really glad for having a lot and great time with my old and new friends.

You can check FOSDEM’s 2013 photo album here.

 

Install fonts in Linux

Scenario:

You just downloaded some cool fonts and you want to use them on your presentation at LibreOffice Presentation.

The fonts are some *.ttf files and you don’t know how to use them or where to put them.

Solution:

Create a folder named “.fonts” in your home directory and place the files in there. It is a “hidden”, system folder located in your system account’s home directory.

Open LibreOffice and you are ready!

mkdir ~/.fonts

Enjoy 🙂

OSOM and Fedora 18 Release Event in Bucharest

I am really happy to announce you that the Friday 15 and the Saturday 16 of the February are going to be two days dressed up in blue.

On Friday is going to be National Open Source Conference in Bucharest (OSOM) where Fedora is going to be there with a pretty booth and an introduction presentation. Our meeting is at 13:00 at Adobe Systems Romania. BD Timisoara, 26Z, Anchor Plaza, 6th floor , Bucharest. See you there!

On Saturday at 12:00 we are having the Fedora 18 Release event at Facultatea de Automatica si Calculatoare at room number EC102. We are going to have a lot of sessions and hackfests regarding our favourite operating system!

Our detailed schedule

  • An introduction to Fedora Project. What is Fedora, why to use it, Fedora 18 new features.
  • Fedora Project as a community. How to contribute, why to contribute.

Hackfests

  • Introduction to Fedora 18 and Gnome shell tips and tricks.
  • Fedora on ARM (raspberry pi).
  • Designing with Fedora and Gimp.
  • Contributing (designing, translating).

 

Invert colours in PDF files

Today I faced to following problem.

I wanted to print an ugly presentation which was stored in a PDF file. And I say ugly because the background was bright blue and the font of the text, yellow!

Printing this beauty in a printer will definitely empty all the ink in the first 10 pages. That’s why we have to invert the colours in order to consume less ink in printing.

After an hour of searching on the web I came out with empty hands! I have only managed to apply a Gray scale on the PDF using the convert command:

convert uglyPresentation.pdf -colorspace gray prettierPresentation.pdf

I am still having the same problem. The background instead of the ugly bright blue is ugly black/gray.

So I started reading the man page of the convert tool instead of searching on the web. Finally I came up with the -negate argument which replace each pixel with its complementary color.

convert prettierPresentation.pdf -negate beautifulPresentation.pdf

And we are set! Now I can print my presentation consuming less ink!

Conclusion: Read The F*** Manual

It is also well mentioned that you can invert or change the colorspace in other file types, like images.

 

 

Three weeks, three awesome events, one goal

 

I am really excited about this blog post! The upcoming weeks are going to be extremely awesome, regarding the two FOSS projects I am mostly involved in Fedora and Mozilla.

 Athens Firefox OS App Days

By time order, this Saturday is the Athens Firefox OS App Day which is sold out from the previous week. This event is going to be a hackathon on the new Firefox OS operating system for mobile devices. In 11 hours, 350 web and mobile developers are going to learn everything about Firefox OS, from theory to “build my own app”. We are going to provide them all the nessessary tools for building their own app in a few hours such as pizza and beer!

A month ago was the Firefox OS hackathon, a pilot event of Firefox OS App Days in Athens hackerspace which prepared us for a success upcoming series of Firefox OS App Days events.

For live updates follow MozillaGreece twitter account or you can watch the live video stream.

 

 FOSDEM 2013

Next weekend (2-3/02) is FOSDEM, the biggest event for FOSS Developers around the globe. It’s going to have a lot of beers, parties, more than 160 presentations and around 5000 hackers around the world.

Except this boring stuff this year is going to be a great year for the Greek FOSS community which is going to have 8 sessions in FOSDEM.

Here is the list with all these awesome presentations – well done guys!

Saturday

11:00 – 12:00 The neat guide to Fedora RPM Packaging Nikos Roussos

11:30 – 12:00 FirefoxOS: Port it… Build it… Flash it…Alfredos-Panagiotis Damkalis

18:00 – 19:00 Using codebender as an IDE for Arduino and other embedded devices Vasilis (tzikis) Georgitzikis

Sunday

10:00 – 11:00 Making a Hackerspace SmartDimitrios Amaxilatis

14:00 – 14:30 Introducing the Synnefo open source IaaS cloud platform Vangelis Koukis

14:00 – 14:30 Firefox OS and Web Applications – Debugging made easyChristos Bacharakis

16:30 – 17:00 WebFWD: Moving the web forwardVasilis (tzikis) Georgitzikis

18:40 – 19:00 Open DiscussionChristos Siopis

So, on Sunday noon I am having a session on Mozilla’s Dev Room presenting all the necessary developer tools and techniques on developing web apps for Firefox OS. The rest of the weekend, if I am not attending a session, you will find me on Fedora’s or Mozilla’s booth.

See you there!

 

Fedora Greece Activity Day – Fedora 18 release party

As you already know Fedora 18 is out and there is no better way to celebrate than a release party. So, in the mid of February we organizing a Greek Fedora 18 release party shared in two cities, Athens and Thessaloniki.

It’s going to happen on Saturday and except the party, we willing to have a lot of hackfests explain how easy is for you to hack Fedora and contribute in upstream projects. We are going to have workshop for starters, introduction to Fedora, translation sprint and for more advanced users, RPM packaging workshop, build your own remix etc.

Our goal is to present Fedora to new users, seek contributors and hack our favourite operating system

More details are going to be published soon!

 

 

 

Open Source and Research – talk, review

Two weeks ago – 27/11/2012 – , along with two great FOSS contributors shared a session in the Aristotle University of Thessaloniki in Greece regarding “Open Source and Research“.

The event was organized by the society of the post graduate department of physics and math of the Aristotle University.

Kostas Koudaras –  OpenSUSE contributor – explained the differences between free source and open source and elaborated on the movement/culture of Free Source software. In addition he explained the philosophy of contributing upstream and generally what do you achieve by contributing in FOSS projects.

Salih Elim – Open Source strategist at ErgoQ –  presented where free/open source applies in day life such as routers, cars, software etc. Later on the audience got amazed by a slide he shared with companies who use and support open source such as redhat, mozilla, google, toyota, ibm, nasa etc. In the end Salih, presented some open source projects which were a products of academic research and explained why should the community of an academic research project has to use, adopt and produce open source software/hardware.

In the last part of the session I – Fedora Project contributor, Mozilla –  presented the benefits of working/creating inside a community especially if that is an open source one. I tried to motivate people to join active FOSS communities or great their own, finding people with common interested. I shared a list with the most active Greek communities such as the Fedora’s Project, Mozilla’s,OpenSUSE’s and explained them why these communities rock, what do we achieve by contributing in these projects and invited them to join us!  I am pretty sure that people understood that through open source communities they can build the future of the open software/hardware as other foundation and foss companies (Red Hat, Mozilla) did in the past.

It was a successful event considering the fact that we had around 75 people, an 30′ session with discussing and answering to questions after the event and a lot of feedback.

I want to thank Thanos Pavloudis from the society of the post graduate department of physics and math (from the Aristotle University of Thessaloniki), who organized this event, made it happen and want to organize more events regarding Open Source.

Some more photos from the event can be found in my picasa web album.

Till the next time, keep hacking the world 😉

 

 

 

Thessaloniki’s Python meeting v0.1

Last week we stepped out from the Greek Python mailing list in order go meet and get know each other.

Despite the awful weather and the cold, we managed to meet 10 people (BEAT THAT ATHENS – with two female people), know each other and discuss geeky staff.

It was a great meeting and we decided to meet again and why not organize and event.

More info are going to be published soon.