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+#+COLUMNS: %40ITEM %10BEAMER_env(Env) %9BEAMER_envargs(Env Args) %10BEAMER_act(Act) %4BEAMER_col(Col) %10BEAMER_extra(Extra) %8BEAMER_opt(Opt)
+#+TITLE: Software Heritage
+#+SUBTITLE: preserving our software commons
+# #+AUTHOR: Roberto Di Cosmo
+# #+EMAIL: roberto@dicosmo.org @rdicosmo @swheritage
+#+BEAMER_HEADER: \date[15/06/2021]{15 June 2021\\RESAW 2021 Keynote}
+#+BEAMER_HEADER: \title[Preserving software commons~~~~ www.softwareheritage.org]{Software Heritage}
+#+BEAMER_HEADER: \author[R. Di Cosmo~~~~ roberto@dicosmo.org ~~~~ (CC-BY 4.0)]{Roberto Di Cosmo\\Inria and Universit\'e de Paris\vspace{-2em}}
+# #+BEAMER_HEADER: \setbeameroption{show notes on second screen}
+#+BEAMER_HEADER: \setbeameroption{hide notes}
+#+KEYWORDS: software heritage legacy preservation knowledge mankind technology
+#+LATEX_HEADER: \usepackage{tcolorbox}
+#+LATEX_HEADER: \definecolor{links}{HTML}{2A1B81}
+#+LATEX_HEADER: \hypersetup{colorlinks,linkcolor=,urlcolor=links}
+
+#
+# prelude.org contains all the information needed to export the main beamer latex source
+# use prelude-toc.org to get the table of contents
+#
+
+#+INCLUDE: "../../common/modules/prelude-toc.org" :minlevel 1
+
+
+#+INCLUDE: "../../common/modules/169.org"
+
+# +LaTeX_CLASS_OPTIONS: [aspectratio=169,handout,xcolor=table]
+
+#+LATEX_HEADER: \usepackage{bbding}
+#+LATEX_HEADER: \DeclareUnicodeCharacter{66D}{\FiveStar}
+
+#
+# If you want to change the title logo it's here
+#
+# +BEAMER_HEADER: \titlegraphic{\includegraphics[width=0.5\textwidth]{SWH-logo}}
+
+# aspect ratio can be changed, but the slides need to be adapted
+# - compute a "resizing factor" for the images (macro for picblocks?)
+#
+# set the background image
+#
+# https://pacoup.com/2011/06/12/list-of-true-169-resolutions/
+#
+#+BEAMER_HEADER: \pgfdeclareimage[height=90mm,width=160mm]{bgd}{swh-world-169.png}
+#+BEAMER_HEADER: \setbeamertemplate{background}{\pgfuseimage{bgd}}
+#+LATEX: \addtocounter{framenumber}{-1}
+* Introduction
+#+INCLUDE: "../../common/modules/rdc-bio.org::#main" :only-contents t :minlevel 2
+* Software Source Code is Precious Knowledge
+** What is /Source Code/?
+   #+INCLUDE: "../../common/modules/source-code-different-short.org::#thesourcecode" :only-contents t :minlevel 3
+** Software /Source Code/ matters
+   #+INCLUDE: "../../common/modules/software-all-around-us.org::#softwareisknowledge" :only-contents t :minlevel 3
+** Software /Source Code/ is part of our cultural heritage
+   #+INCLUDE: "../../common/modules/source-code-different-short.org::#softwareisdifferent" :only-contents t :minlevel 3
+** /Source Code/ and the commons
+   #+INCLUDE: "../../common/modules/foss-commons.org::#commonsdef" :only-contents t :minlevel 3
+* An Endangered Knowledge
+** Spread all around
+   #+INCLUDE: "../../common/modules/swh-motivations.org::#spread" :only-contents t :minlevel 3
+** Fragile
+   \vspace{-.5em}
+   #+INCLUDE: "../../common/modules/swh-motivations.org::#fragile" :only-contents t :minlevel 3
+   \mbox{}\\
+   \hfill and what about all the landmark legacy source code that is rotting away?
+** We are at a turning point
+   #+INCLUDE: "../../common/modules/turningpoint.org::#turningpoint" :only-contents t :minlevel 3
+* Meet Software Heritage
+** Software Heritage in a nutshell \hfill www.softwareheritage.org
+#+BEAMER: \transdissolve
+#+INCLUDE: "../../common/modules/swh-goals-oneslide-vertical.org::#goals" :only-contents t :minlevel 3
+** An international, non profit initiative\hfill built for the long term
+  :PROPERTIES:
+  :CUSTOM_ID: support
+  :END:
+*** Sharing the vision                                              :B_block:
+  :PROPERTIES:
+  :CUSTOM_ID: endorsement
+  :BEAMER_COL: .5
+  :BEAMER_env: block
+  :END:
+   #+LATEX: \begin{center}{\includegraphics[width=\extblockscale{.4\linewidth}]{unesco_logo_en_285}}\end{center}
+   #+LATEX: \vspace{-0.8cm}
+   #+LATEX: \begin{center}\vskip 1em \includegraphics[width=\extblockscale{1.4\linewidth}]{support.pdf}\end{center}
+    #+latex: \small And many more ...\\
+    #+latex:\mbox{}~~~~~~~\tiny\url{www.softwareheritage.org/support/testimonials}
+#+BEAMER: \pause
+*** Donors, members, sponsors                                       :B_block:
+    :PROPERTIES:
+    :CUSTOM_ID: sponsors
+    :BEAMER_COL: .5
+    :BEAMER_env: block
+    :END:
+   #+LATEX: \begin{center}\includegraphics[width=\extblockscale{.4\linewidth}]{inria-logo-new}\end{center}
+   #+LATEX: \begin{center}
+   # #+LATEX: \includegraphics[width=\extblockscale{.2\linewidth}]{sponsors-levels.pdf}
+   #+LATEX: \colorbox{white}{\includegraphics[width=\extblockscale{1.4\linewidth}]{sponsors.pdf}}
+   #+LATEX: \end{center}
+#   - sponsoring / partnership :: \hfill \url{sponsorship.softwareheritage.org}
+*** :B_ignoreheading:
+    :PROPERTIES:
+    :BEAMER_env: ignoreheading
+    :END:
+*** Research collaboration                              :B_picblock:noexport:
+  :PROPERTIES:
+  :BEAMER_COL: .5
+  :BEAMER_env: picblock
+  :BEAMER_OPT: pic=Qwant_Logo, leftpic=true
+  :END:
+    source code search engine
+*** See more                                                       :noexport:
+    \hfill\tiny\url{http:://www.softwareheritage.org/support/testimonials}
+*** Global network                                      :B_picblock:noexport:
+    :PROPERTIES:
+    :BEAMER_COL: .5
+    :BEAMER_env: picblock
+    :BEAMER_OPT: pic=fossid, leftpic=true, width=.3\linewidth
+    :END:
+     - first *independent mirror*
+     - increased reliability
+** The largest software archive, a shared infrastructure
+   #+latex: \begin{center}
+   #+ATTR_LATEX: :width 0.7\linewidth
+   file:SWH-as-foundation-slim.png
+   #+latex: \end{center}
+   #+BEAMER: \pause
+   #+latex: \centering
+   #+ATTR_LATEX: :width \extblockscale{.9\linewidth}
+   file:2021-05-archive-growth.png
+** Growing adoption in Academia (selection)
+   #+INCLUDE: "../../common/modules/swh-adoption-academic.org::#adoption" :only-contents t :minlevel 3   
+** Intrinsic identifiers (see [[https://dx.doi.org/10.1007/978-3-030-52200-1_36][ICMS 2020]] for details)               :noexport:
+   #+INCLUDE: "../../common/modules/swh-ardc.org::#swh-r" :only-contents t :minlevel 3
+** Software Heritage Identifiers (SWHID) \hfill [[https://docs.softwareheritage.org/devel/swh-model/persistent-identifiers.html][link to full docs]]
+# #+INCLUDE: "../../common/modules/swh-id-syntax.org::#swh-id-syntax" :only-contents t :minlevel 3
+  #+LATEX: \centering%\forcebeamerstart
+  #+LATEX: \mode<beamer>{\only<1>{\includegraphics[width=\linewidth]{SWHID-v1.4_1.png}}}
+  #+LATEX: \mode<beamer>{\only<2>{\includegraphics[width=\linewidth]{SWHID-v1.4_2.png}}}
+  #+LATEX: \only<3->{\includegraphics[width=\linewidth]{SWHID-v1.4_3.png}}
+  #+LATEX: %\forcebeamerend
+*** An emerging standard :B_block:
+    :PROPERTIES:
+    :BEAMER_act: <4->
+    :BEAMER_COL: .6
+    :BEAMER_env: block
+    :END:
+    - in Linux Foundation's [[https://spdx.github.io/spdx-spec/appendix-VI-external-repository-identifiers/#persistent-id][SPDX 2.2]]
+    - IANA registered, WikiData property [[https://www.wikidata.org/wiki/Property:P6138][P6138]]
+*** Examples: :B_block:
+    :PROPERTIES:
+    :BEAMER_act: <5->
+    :BEAMER_COL: .4
+    :BEAMER_env: block
+    :END:
+    - [[https://archive.softwareheritage.org/swh:1:cnt:64582b78792cd6c2d67d35da5a11bb80886a6409;origin=https://github.com/virtualagc/virtualagc;lines=245-261/][Apollo 11 AGC excerpt]],
+    - [[https://archive.softwareheritage.org/swh:1:cnt:bb0faf6919fc60636b2696f32ec9b3c2adb247fe;origin=https://github.com/id-Software/Quake-III-Arena;lines=549-572/][Quake III rsqrt]]
+
+* Demo time!
+** Focus on Archive and Reference
+   - The [[https://www.softwareheritage.org/2019/07/20/archiving-and-referencing-the-apollo-source-code/][Apollo 11 AGC source code example]]
+   - Browse [[https://archive.softwareheritage.org][the archive]]
+   - [[https://save.softwareheritage.org][Trigger archival]] of your preferred software in a breeze
+   - Get and use SWHIDs ([[https://docs.softwareheritage.org/devel/swh-model/persistent-identifiers.html][full specification available online]])
+   - Example use in a research article: compare Fig. 1 and conclusions 
+      - in [[http://www.dicosmo.org/Articles/2012-DaneluttoDiCosmo-Pcs.pdf][the 2012 version]]
+      - in [[https://www.dicosmo.org/share/parmap_swh.pdf][the updated version]] using SWHIDs and Software Heritage
+   - Cite software [[https://www.softwareheritage.org/2020/05/26/citing-software-with-style/][with the biblatex-software style]] from CTAN
+#   - Example use in a research article: extensive use of SWHIDs in [[https://www.dicosmo.org/Articles/2020-ReScienceC.pdf][a replication experiment]]
+   - Example in a real journal: [[http://www.ipol.im/pub/art/2020/300/][an article from IPOL]]
+#   - Supporting reproducible builds: [[https://www.softwareheritage.org/2019/04/18/software-heritage-and-gnu-guix-join-forces-to-enable-long-term-reproducibility/][Guix]] and [[https://www.softwareheritage.org/2019/04/18/software-heritage-and-gnu-guix-join-forces-to-enable-long-term-reproducibility/][Nix]]
+** Recent news, and a lesson to be learned
+*** Saving 250.000 endangered repositories...
+    - summer 2019: BitBucket announce Mercurial VCS phase out
+    - fall 2019: Software Heritage teams up with Octobus (funded by NLNet, thanks!)
+    - july 2020: BitBucket erases /250.000/ repositories
+    - august 2020: [[https://bitbucket-archive.softwareheritage.org][bitbucket-archive.softwareheritage.org]] is live
+#+BEAMER: \pause
+*** ... preserving the web of knowledge   \hfill  (Tweet [[https://twitter.com/gabrielaltay/status/1300218789762662401][is here]] ) :B_picblock:
+    :PROPERTIES:
+    :BEAMER_env: picblock
+    :BEAMER_OPT: pic=bitbucket_swh_praise.png, width=.6\linewidth, leftpic=true
+    :END:
+
+\\
+    *Bottomline*\\
+    /explicit deposit/ is important, ...\\
+    \mbox{}\hfill ... and we must promote it...\hfill\mbox{}\\
+    \mbox{}\hfill ... but will never be enough.\\
+\mbox{}\\
+\mbox{}\hfill /(think also of all software dependencies!)/
+** Summing up: a revolutionary infrastructure /designed for source code/
+#+latex:\vspace{-0.2em}
+#+BEGIN_EXPORT latex
+ \begin{center}
+ \includegraphics[width=.4\linewidth]{SWH-logo.pdf}
+ { \url{www.softwareheritage.org}}
+ \end{center}
+#+END_EXPORT
+#+latex:\vspace{-0.4em}
+*** /global/ source code /archive/ \hfill /Library of Alexandria of source code/
+    :PROPERTIES:
+    :BEAMER_env: picblock
+    :BEAMER_OPT: pic=clock-spring-forward.png,width=.15\linewidth,leftpic=true
+    :END:
+      + harvest /all/ software source code
+      + /on demand harvesting/ and /curated deposit/
+#+latex:\vspace{-0.4em}
+*** /universal/ intrinsic identifiers
+      \mbox{}\hfill SWHID standard is independent of version control systems
+#+latex:\vspace{-0.4em}
+*** /uniform/ data model, /full graph/ of development history
+      \mbox{}\hfill enables large scale, big code research
+#+BEAMER: \pause
+#+latex:\vspace{-0.4em}
+*** /infrastructure/ for Open Science
+    \mbox{} \hfill /base layer/ for software source code in the /Open Science architecture/
+* Preserving the history of our software commons
+** All the source code!
+    #+BEAMER: \begin{center}\includegraphics[width=\extblockscale{\linewidth}]{swh-collect-axes}\end{center}
+** All the source code: strategy
+    #+BEAMER: \begin{center}\includegraphics[width=\extblockscale{\linewidth}]{swh-collect-strategies}\end{center}
+** The \hfill /\href{https://unesdoc.unesco.org/ark:/48223/pf0000371017}{SWHAP}/ process, with UNESCO and University of Pisa
+  # variant of #+INCLUDE: "../../common/modules/swh-acquisition-process.org::#swhap" :only-contents t :minlevel 3
+*** Paris Call on Software Source Code
+    “[We call to] support efforts to gather and preserve the artifacts and
+    narratives of the history of computing, while the earlier creators are still
+    alive”
+    #+BEAMER: \pause
+***                                                             :B_block:BMCOL:
+  :PROPERTIES:
+  :BEAMER_col: 0.3
+  :END:
+#+BEGIN_EXPORT latex
+\begin{center}
+\includegraphics[width=\extblockscale{1.1\linewidth}]{SWHAP-cover.pdf}
+\end{center}
+#+END_EXPORT
+*** :B_block:BMCOL:
+  :PROPERTIES:
+  :BEAMER_col: 0.7
+  :END:
+  - **Rescue** Legacy Software from different media\\
+    \mbox{}\\
+  - **Curate** the code
+    - reconstruct the development history
+      + /Software Heritage - GitHub/ work on fixing git
+    - collect the metadata\\
+    \mbox{}\\
+  - **Archive** in Software Heritage
+*** 
+    *UNESCO, UniPi and Software Heritage* collaboration \hfill worldwide scope
+  
+** An example: TAUmus, from Pisa (70's)
+   #+INCLUDE: "../../common/modules/swh-acquisition-process.org::#swhaptaumus" :only-contents t :minlevel 3
+* The road ahead
+** Calling for more History of Computer Science
+*** Communications of the ACM, February 2021                     :B_picblock:
+    :PROPERTIES:
+    :BEAMER_env: picblock
+    :BEAMER_OPT: pic=KnuthHistory.jpg, leftpic=true, width=.3\textwidth
+    :END:
+    /"Telling historical stories is the best way to teach. It's much easier to understand something if you know the threads it is connected to."/
+    \mbox{}\\
+    \mbox{}\\
+    \mbox{}\hfill /Let's Not Dumb Down the History of Computer Science/\\
+    \mbox{}\hfill Donald E. Knuth, Len Shustek\\
+    \mbox{}\hfill https://doi.org/10.1145/3442377
+#+BEAMER: \pause
+*** A unique opportunity
+    - most of the creators are still here: we can talk to them!
+    - Software Heritage provides a key infrastructure for software historians
+#+BEAMER: \pause
+*** Stay tuned
+    \hfill /great news for software stories in a few months/...
+** You may help!
+*** Foster adoption and best practices
+      + [[https://www.softwareheritage.org/save-and-reference-research-software/][archive and reference relevant source code]] (save code now, and [[https://hal.inria.fr/hal-01872189][deposit]]),
+      + [[https://www.softwareheritage.org/swhap/][rescue and preserve landmark legacy source code]] with SWHAP, 
+      + use Software Heritage in articles, journals, and books
+#+BEAMER: \pause
+*** Engage with Software Heritage as an individual
+    - the [[https://www.softwareheritage.org/ambassadors/][ambassador program]] is open:
+      + learn directly from the core team, share with your community
+#+BEAMER: \pause
+*** Engage with Software Heritage as an organization
+    - join [[https://www.softwareheritage.org/support/sponsors/][as a member/sponsor]]
+    - contribute to the preservation mission
+** Thank you!
+   #+latex:    \centering{\huge\bf Questions?}
+  \vspace{-.5em}  
+*** References
+  #+BEGIN_EXPORT latex
+  \begin{thebibliography}{Foo Bar, 1969}
+  \footnotesize
+  \bibitem{SwForumEu2021} R. Di Cosmo, \emph{A revolutionary infrastructure for Open Source}, 2021, EU Software Forum \href{https://annex.softwareheritage.org/public/talks/2021/2021-03-24-SwForum.pdf}{(slides)} \href{https://youtu.be/AwY527kDMfM?t=178}{(video)}
+  \bibitem{EOSCSirs2020} EOSC SIRS Task Force, \emph{Scholarly Infrastructures for Research Software}
+  \newblock 2020, European Commission, \href{https://doi.org/10.2777/28598}{(10.2777/28598)}
+  \bibitem{DiCosmo2020d} R. Di Cosmo, \emph{Archiving and Referencing Source Code with Software Heritage}
+  \newblock ICMS 2020 \href{https://dx.doi.org/10.1007/978-3-030-52200-1_36}{(10.1007/978-3-030-52200-1\_36)}
+  \bibitem{DiCosmo2019} R. Di Cosmo, M. Gruenpeter, S. Zacchiroli\newblock
+  \emph{Referencing Source Code Artifacts: a Separate Concern in Software Citation},\newblock
+  CiSE 2020 \href{https://dx.doi.org/10.1109/MCSE.2019.2963148}{(10.1109/MCSE.2019.2963148)}
+  \href{https://hal.archives-ouvertes.fr/hal-02446202}{(hal-02446202)}
+  \bibitem{alliez:hal-02135891} P. Alliez, R. Di Cosmo, B. Guedj, A. Girault, M.-S. Hacid, A. Legrand and N. Rougier\newblock
+  \emph{Attributing and referencing (research) software: Best practices and outlook from Inria}, \newblock
+  CiSE 2020 \href{https://doi.ieeecomputersociety.org/10.1109/MCSE.2019.2949413}{(10.1109/MCSE.2019.2949413)}
+  \href{https://hal.archives-ouvertes.fr/hal-02135891}{(hal-02135891)}
+  \bibitem{Abramatic2018} J.F. Abramatic, R. Di Cosmo, S. Zacchiroli,
+  \emph{Building the Universal Archive of Source Code}, 
+  \newblock CACM, October 2018 \href{https://doi.org/10.1145/3183558}{(10.1145/3183558)}
+  \end{thebibliography}
+  #+END_EXPORT
+* Appendix                                              :B_appendix:noexport:
+  :PROPERTIES:
+  :BEAMER_env: appendix
+  :END:
+** 
+   \vfill
+   \centerline{\Huge Appendix}
+   \vfill
+* SWHIDs by the example                                            :noexport:
+** A word on the trust model for systems of identifiers
+   \vspace{-5pt}
+*** Two general classes of systems of identifiers
+    - intrinsic :: /computed/ from the object /(no registry required, fully decentralised)/\\
+      /(e.g.: chemical notation, music notation, hashes, SWHIDs)/\pause
+    - extrinsic :: /assigned/ by an authority /(need a registry)/\\
+      /(e.g.: passport number, DOI, ARK, RRID, etc.)/\pause
+    \mbox{}\hfill See [[https://www.softwareheritage.org/2020/07/09/intrinsic-vs-extrinsic-identifiers/][the dedicated blog post]] for more details 
+#+BEAMER: \pause
+*** Trust model, extrinsic (e.g. DOIs)                              :B_block:
+    :PROPERTIES:
+    :BEAMER_COL: .5
+    :BEAMER_env: block
+    :END:
+#+ATTR_LATEX: :width \linewidth
+file:doi-vs-pid-1.pdf
+#+BEAMER: \pause
+*** Trust model, intrinsic (e.g. SWHIDs)                            :B_block:
+    :PROPERTIES:
+    :BEAMER_env: block
+    :BEAMER_COL: .45
+    :END:
+#+ATTR_LATEX: :width .8\linewidth
+file:doi-vs-pid-3.pdf
+*** Trust model for DOIs with checksums                    :B_block:noexport:
+    :PROPERTIES:
+    :BEAMER_COL: .5
+    :BEAMER_env: block
+    :END:
+#+ATTR_LATEX: :width \linewidth
+file:doi-vs-pid-2.pdf
+***                                                :B_ignoreheading:noexport:
+    :PROPERTIES:
+    :BEAMER_env: ignoreheading
+    :END:
+** A worked example
+    #+LATEX: \centering\forcebeamerstart
+    #+LATEX: \only<1>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_1.pdf}}}
+    #+LATEX: \only<2>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/contents.pdf}}}
+    #+LATEX: \only<3>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_2_contents.pdf}}}
+    #+LATEX: \only<4>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/directories.pdf}}}
+    #+LATEX: \only<5>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_3_directories.pdf}}}
+    #+LATEX: \only<6>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/revisions.pdf}}}
+    #+LATEX: \only<7>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_4_revisions.pdf}}}
+    #+LATEX: \only<8>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/releases.pdf}}}
+    #+LATEX: \only<9>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/merkle_5_releases.pdf}}}
+    #+LATEX: \only<10>{\colorbox{white}{\includegraphics[width=\extblockscale{\linewidth}]{git-merkle/snapshots.pdf}}}
+    #+LATEX: \forcebeamerend
+* Big code                                                         :noexport:
+** Software Heritage for Research and Innovation
+*** Reference platform for /Big Code/                            :B_picblock:
+    :PROPERTIES:
+    :BEAMER_opt: pic=universal, leftpic=true, width=.2\linewidth
+    :BEAMER_env: picblock
+    :BEAMER_act:
+    :END:
+   - unique *observatory* of all software development 
+   - *big data, machine learning* paradise: classification, trends, coding patterns, code completion...
+#+BEAMER: \pause
+*** First datasets are available!
+   - full graph of software development (~20Bn nodes, ~200Bn edges)
+     see Pietri, Spinellis, Zacchiroli, MSR 2019 https://dx.doi.org/10.1109/MSR.2019.00030
+   - MSR 2020 mining competition
+     see https://2020.msrconf.org/track/msr-2020-mining-challenge#Call-for-Papers
+
+* News                                                             :noexport:
+** Milestones                                                      :noexport:
+   #+INCLUDE: "../../common/modules/swh-key-dates.org::#keydates" :minlevel 3 :only-contents t
+** News : SWHAP
+*** Paris Call on Software Source Code
+    “[We call to] support efforts to gather and preserve the artifacts and
+    narratives of the history of computing, while the earlier creators are still
+    alive”
+#+BEAMER: \pause
+*** SWHAP : an important step forward
+     - detailed guidelines to *curate* landmark legacy source code
+       and *archive* it on Software Heritage
+     - intense cooperation with *Università di Pisa* and *UNESCO*
+     - open to all, we'll promote it worldwide
+*** 
+    https://www.softwareheritage.org/swhap
+** News : archiving /public/ code
+   #+latex: \begin{center}
+   #+ATTR_LATEX: :width 0.7\linewidth
+   file:codeetalab.png
+   #+latex: \end{center}
+#+BEAMER: \pause
+   https://code.etalab.gouv.fr
+** News : ENEA mirror
+*** Thomas Jefferson, February 18, 1791 :B_block:
+    :PROPERTIES:
+    :BEAMER_ACT:
+    :BEAMER_env: block
+    :END:      
+#+latex:  {\em
+  ...let us save what remains: not by vaults and locks which fence them
+  from the public eye and use in consigning them to the waste of time,
+  but by such a multiplication of copies, as shall place them beyond
+  the reach of accident.
+#+latex: }
+   #+BEAMER: \pause
+*** Welcoming ENEA                                                  :B_block:
+    :PROPERTIES:
+    :BEAMER_env: picblock
+    :BEAMER_OPT: pic=LogoENEAcompletoENG.png, leftpic=true, width=.7\linewidth
+    :END:
+     - first *institutional* mirror
+     - increased resilience
+     - *AI infrastructure* for researchers
+     - stepping stone to \endgraf
+       \hfill an European joint effort
diff --git a/talks-public/2021-06-15-RESAW/METADATA b/talks-public/2021-06-15-RESAW/METADATA
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+Title: Software Heritage: a common infrastructure to preserve our Software Commons
+
+Abstract:
+
+Software is at the heart of our digital society and embodies a growing part of
+our scientific, technical and organisational knowledge.
+
+Software Heritage is an open non-profit initiative whose mission is to ensure
+that this precious body of knowledge will be preserved over time and made
+available to all.
+
+We do this for multiple reasons. To preserve the scientific and technological
+knowledge embedded in software source code, and contribute to collecting the
+history of its development as a human endeavour. To allow better software development
+and reuse for society and industry. To foster better science, building the
+infrastructure for preserving, sharing and referencing research software, a
+stepping stone for reproducibility, and a necessary complement to Open Access.
+
+We do this now, to address the risk of massive lossage of source code developed
+by the Free and Open Source community, with code hosting sites that shut down
+when their popularity decreases.
+
+On the one hand, we look for exhaustiveness, and we have already collected over
+10 billions unique source files from over 150 millions repositories, and
+organised them into a giant Merkle graph, with full deduplication across all
+repositories.
+
+On the other hand, we care for quality, and we have partnered with UNESCO and
+the University of Pisa to develop the SWHAP process for rescuing, curating and
+archiving landmark legacy source code.
+
+Now we call on everybody, from individuals to companies, from public to
+private entities, to contribute actively to this mission.
+
+Short bio:
+
+After obtaining a PhD in Computer Science at the University of Pisa, Roberto Di Cosmo was associate professor for almost a decade at Ecole Normale Supérieure in Paris, and became a Computer Science full professor at University Paris Diderot in 1999. He is currently on leave at Inria. He has been actively involved in research in theoretical computing, specifically in functional programming, parallel and distributed programming, the semantics of programming languages, type systems, rewriting and linear logic. His main focus is now on the new scientific problems posed by the general adoption of Free Software, with a particular focus on static analysis of large software collections, that were at the core of the european reseach project Mancoosi. Following the evolution of our society under the impact of IT with great interest, he is a long term Free Software advocate, contributing to its adoption since 1998 with the best-seller Hijacking the world, seminars, articles and software. He created the Free Software thematic group of Systematic in October 2007, and since 2010 he is director of IRILL, a research structure dedicated to Free and Open Source Software quality. In 2016, he co-founded and directs Software Heritage, an initiative to build the universal archive of all the source code publicly available.
diff --git a/talks-public/2021-06-15-RESAW/Makefile b/talks-public/2021-06-15-RESAW/Makefile
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+include ../Makefile.slides