Romain Pellerin

Photo of Romain

I am a Software Engineer living in Paris, France. I usually spend my time programming or having fun in a terminal. In love with GNU/Linux and FOSS (RMS's website is a gold mine everyone should read). I like writing in LaTeX. And I also play the guitar.

Apart from computers, I am also interested in space exploration and rockets, AI and self-driving electric cars. I look forward to a future with a lot less pollution.

I try to read books as often as possible, in English and French. I am also a huge fan of comics.

I write blog posts quite extensively on this website, not only about computer science but also broader topics such as the environment, my travels or politics. There are RSS and Atom feeds that you can subscribe to. I usually write a few times a month. Feedback is greatly appreciated.

Download my resume (PDF).



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Latest articles

  1. RxJS

    This is a draft article likely to evolve or be deleted or merged with another article in the future. General concepts Observer: when subscribing, get all past emitted values Subject: when subscribing, get only next-to-come emitted values BehaviorSubject: like Subject but keeps a current state, which is the last received value or the one passed...

  2. Video Editing on Linux

    This is a reminder for myself. I thought it could be useful to other people too, that's why I put it online. Record in 1080p, at 60 FPS, unless you want to go fancy and do 4k. Download Kdenlive. Using VLC, Tools > Codec information, check the framerate. All videos must have the same frame rate otherwise you might encounter issues. When creating...

  3. Finland

    Late March this year, I went to Finland for 3 days over the weekend. As a first-timer, I was not expecting so much snow and ice this late in Winter. We had two sunny days, slightly above 0 degrees celsius. The third day was all snowy. I got to visit Helsinki and Tampere, the two major cities of the country. I found these two cities incredibly...

Highlighted articles


I operate by Crocker's Rules. You can contact me on any of the above-mentioned websites, or using the following email address:

Should you decide to reach out on social media, please don't say just hi and don't ask to ask :).