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New personal best @semiparis: 1h45m51s. Amazing weather, if not for the heavy contrary wind in the last 5k... Thanks .

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My team is hiring a senior engineer to work on @SWHeritage. Challenges abound, it's for the greater good, and it's all . Learn more at

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new paper: « Building the Universal Archive of Source Code » ← our manifesto for software source code preservation at @SWHeritage . On @CACMmag with @rdicosmo & @JFAbramatic

voice in the distance: what are you doing?
me: a BFS visit on a 170 billion nodes graph
voice again: ah, ok then

our article « The @swheritage graph dataset: public software development under one roof » is now available from the ACM Digital Library (a non paywalled preprint can be found on my homepage)

"The main purpose of intellectual property law is to encourage the creation of a wide variety of intellectual goods." they said…
: « Public domain: Who owns Sherlock Holmes? » via @TheEconomist

with @swheritage we just crossed the threshold of 6B unique source code files archived

Dear , what's the largest instance you know, in terms of hosted repositories?

The standing champion is , but I'm confident there are larger instances out there…

"Fiscal Money Can Make or Break the Euro" by Yanis Varoufakis @ProSyn

The project, presented by @zacchiro, is a huge effort to preserve #FreeSoftware for the future, “we have seen commercial software forges come and go, don’t assume your developments will be preserved forever” #SRCONF19

at , @MarioCampolargo pitches free/open source software as one of the key ingredients for the digital transformation of European public administrations: « think digital, think open »

at , to discuss how @swheritage ties in digital transformation for European public administrations

if you're at and would like to chat about the largest publicly accessible source code archive in the world—that is, @swheritage—come and talk to me !

Evgeny Morozov: « Socialize the Data Centres ! » (an oldie that I've found only now, but which is still terribly relevant. Surprising, right?)

It's 2019 and on an oversea @airfrance : there's no power plug of any kind, I can't use my own headphones and the entertainment system has a wire-connected "remote".

CDG→YUL, where we will present at the first public dataset encompassing the entire @SWHeritage graph. Preprint at

It's 2019 and I still find "professional" wi-fi networks that blocks outbound connections.
IOW, with this ~/.ssh/config snippet keeps making my days:

Host *.tor
ProxyCommand socat STDIO SOCKS4A:$(basename %h .tor):%p,socksport=9050

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