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diff --git a/talks-public/2022-06-24-CNRS/2022-06-24-CNRS.org b/talks-public/2022-06-24-CNRS/2022-06-24-CNRS.org
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+++ b/talks-public/2022-06-24-CNRS/2022-06-24-CNRS.org
@@ -0,0 +1,258 @@
+#+COLUMNS: %40ITEM %10BEAMER_env(Env) %9BEAMER_envargs(Env Args) %10BEAMER_act(Act) %4BEAMER_col(Col) %10BEAMER_extra(Extra) %8BEAMER_opt(Opt)
+#+TITLE: Archive and reference Software
+# #+AUTHOR: Benoît Chauvet
+# #+EMAIL: contact@benoitchauvet.com
+#+BEAMER_HEADER: \date[24/06/2022]{24/06/2022\\Evénement Forge CNRS, Paris 2022}
+#+BEAMER_HEADER: \title[Archive and reference software~~~~ www.softwareheritage.org]{How to archive and reference Software's source code in Software Heritage}
+#+BEAMER_HEADER: \author[Benoît Chauvet~~~~ contact@benoitchauvet.com]{Benoît Chauvet}
+#+BEAMER_HEADER: \institute[Software Heritage]{Software Engineering Manager, Software Heritage\\Inria}
+# #+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 : the Software Heritage project
+
+** Why an archive ? Software is spread all around
+ :PROPERTIES:
+ :CUSTOM_ID: spread
+ :END:
+ #+latex: \begin{flushleft}
+ #+ATTR_LATEX: :width \extblockscale{.5\linewidth}
+ file:myriadsources.png
+ #+latex: \end{flushleft}
+
+*** Fashion victims
+ - many disparate development platforms
+ - a myriad places where distribution may happen
+ - projects tend to migrate from one place to another over time
+
+*** One place... :B_block:
+ :PROPERTIES:
+ :BEAMER_env: block
+ :END:
+ \hfill ... where can we find, track and search /all/ source code?
+
+** Why an archive ? Software is fragile
+ :PROPERTIES:
+ :CUSTOM_ID: fragile
+ :END:
+ #+latex: \begin{flushleft}
+ #+ATTR_LATEX: :width \extblockscale{.5\linewidth}
+ file:fragilecloud.png
+ #+latex: \end{flushleft}
+
+*** Like all digital information, FOSS is fragile
+# - inconsiderate and/or malicious code loss (e.g., Code Spaces)
+ - link rot: projects are created, moved around, removed
+ - business-driven code loss (e.g., Gitorious, Google Code, Bitbucket)
+ - data rot: physical media with legacy software decay
+
+*** If a website disappears you go to the Internet Archive... :B_block:
+ :PROPERTIES:
+ :BEAMER_env: block
+ :END:
+ \hfill where do you go if (a repository on) GitHub or GitLab goes away?
+
+
+** Software is missing its own Research Infrastructure
+ :PROPERTIES:
+ :CUSTOM_ID: research
+ :END:
+ #+latex: \begin{flushleft}
+ #+ATTR_LATEX: :width \extblockscale{.4\linewidth}
+ file:atacama-telescope.jpg
+ #+latex: \mbox{}\\{\tiny Photo: ALMA(ESO/NAOJ/NRAO), R. Hills}
+ #+latex: \end{flushleft}
+*** A wealth of software research on crucial issues...
+ - safety, security, test, verification, proof
+ - software engineering, software evolution
+ - empirical and big data studies
+
+*** If you study the stars, you go to Atacama... :B_block:
+ :PROPERTIES:
+ :BEAMER_env: block
+ :END:
+ \hfill ... where is the /very large telescope/ of source code?
+
+** Software Heritage in a Nutshell
+
+#+latex: \begin{center}
+#+ATTR_LATEX: :width \extblockscale{.6\linewidth}
+file:SWH-logo+motto.pdf
+#+latex: \end{center}
+
+
+*** Main Objectives
+- *Collect*, *Preserve* and *Share*
+
+*** Reference catalog
+ :PROPERTIES:
+ :BEAMER_env: block
+ :BEAMER_COL: .3
+ :END:
+#+BEGIN_EXPORT latex
+\begin{center}
+\includegraphics[width=.4\linewidth]{myriadsources}
+\end{center}
+#+END_EXPORT
+ *find* and *reference* all software source code (open source)
+
+*** Universal archive
+ :PROPERTIES:
+ :BEAMER_env: block
+ :BEAMER_COL: .3
+ :END:
+#+BEGIN_EXPORT latex
+\begin{center}
+\includegraphics[width=.4\linewidth]{fragilecloud}
+\end{center}
+#+END_EXPORT
+ *preserve* all the archived software source code *forever*
+
+*** Research infrastructure :B_block:
+ :PROPERTIES:
+ :BEAMER_COL: .3
+ :BEAMER_env: block
+ :END:
+#+BEGIN_EXPORT latex
+\begin{center}
+\includegraphics[width=.4\linewidth]{atacama-telescope}
+\end{center}
+#+END_EXPORT
+ *enable analysis* of all software source code, make every piece *identifiable* and freely *available*
+
+** Our principles
+ :PROPERTIES:
+ :CUSTOM_ID: principlesstatus
+ :END:
+#+latex: \begin{center}
+#+ATTR_LATEX: :width .6\linewidth
+file:SWH-as-foundation-slim.png
+#+latex: \end{center}
+#+latex: \footnotesize\vspace{-3mm}
+
+ #+latex: \centering
+ #+ATTR_LATEX: :width \extblockscale{.8\linewidth}
+ file:2022-05-06-archive-growth.png
+
+** Under the hood: Automation, and storage
+ :PROPERTIES:
+ :CUSTOM_ID: automation
+ :END:
+ #+BEAMER: \begin{center}
+ #+BEAMER: \only<1>{\includegraphics[width=\extblockscale{\textwidth}]{swh-dataflow-merkle.pdf}}
+ #+BEAMER: \end{center}
+ /Global development history/ *permanently archived* in a *uniform data model*
+ - over *12 billion* unique source files from almost *180 million* software projects
+ - *~900 TB* (uncompressed) blobs, *~25 B* nodes, *~300 B* edges
+
+* Reference archived code with SWHIDs
+
+** R(eference): granularity and identifiers \hfill [[http://doi.org/10.15497/RDA00053][10.15497/RDA00053]]
+ #+LATEX: \centering\forcebeamerstart
+ #+LATEX: \only<1>{\includegraphics[width=0.8\linewidth]{Granularity-Level-animated-0.png}}
+ #+LATEX: \only<2>{\includegraphics[width=0.8\linewidth]{Granularity-Level-animated-1.png}}
+ #+LATEX: \only<3>{\includegraphics[width=0.8\linewidth]{Granularity-Level-animated-2.png}}
+ #+LATEX: \only<4>{\includegraphics[width=0.8\linewidth]{Granularity-Level-animated-3.png}}
+ #+LATEX: \forcebeamerend
+ #+LATEX: \only<1>{\begin{block}{}\centering Top concept layers vs. bottom artifact layers\end{block}}
+ #+LATEX: \only<2>{\begin{block}{}\centering Extrinsic identifiers are key for the concept layers\end{block}}
+ #+LATEX: \only<3>{\begin{block}{}\centering Intrinsic identifiers are key for the artifact layers\end{block}}
+ #+LATEX: \only<4>{\begin{block}{}\centering In some cases, extrinsic identifiers can be added too\end{block}}
+
+** Meet the SWHID intrinsic identifiers
+
+ :PROPERTIES:
+ :CUSTOM_ID: oneslide
+ :END:
+ #+LATEX: \centering
+ #+LATEX: \only<1>{\includegraphics[width=\linewidth]{SWHID-v1.4_3.png}}
+ #+LATEX: \forcebeamerend \vspace{-6mm}
+
+
+** Meet the SWHID intrinsic identifiers
+
+ \centering [[https://archive.softwareheritage.org/browse/origin/directory/?origin_url=https://src.koda.cnrs.fr/mmdc/sensorsio][SWHID DEMO !]]
+
+ \vspace{1em}
+
+ \centering [[https://www.softwareheritage.org/2020/07/09/intrinsic-vs-extrinsic-identifiers/][Reference : Extrinsic vs intrinsic identifiers]]
+
+* Archive a repository: Save Code Now
+
+** Save code now
+#+LATEX: \only<1>{\includegraphics[width=1\linewidth]{save-code-now-1.png}}
+
+* Archive a whole forge: Add Forge Now
+
+** Add forge now: submit a request
+#+LATEX: \only<1>{\includegraphics[width=1\linewidth]{add-forge-now-1.png}}
+
+** Add forge now: manage a request
+#+LATEX: \only<1>{\includegraphics[width=0.8\linewidth]{add-forge-now-3.png}}
+
+* Deposit with HAL (Deposit)
+
+** HAL and Software Heritage: building a curated software catalog
+
+\centering \includegraphics[width=0.5\linewidth]{HAL-logo.png}
+
+*** Software project deposit in HAL
+ - 2 use cases :
+ - Source code deposit
+ - SWHID deposit
+ - [[https://doc.archives-ouvertes.fr/en/deposit/deposit-software-source-code/][Curated deposit in SWH via HAL]]
+
+** Source code deposit
+
+\centering \includegraphics[width=0.5\linewidth]{hal-deposit-source.png}
+
+
+*** Local software source code upload
+ - .zip / .tar.gz format
+ - must contain README, AUTHORS and LICENSE files
+
+** SWHID deposit
+
+\centering \includegraphics[width=0.4\linewidth]{hal-deposit-swhid.png}
+
+*** Software Heritage archived code deposit
+ - SWHID reference
+ - metadata (codemeta.json)
+
+
diff --git a/talks-public/2022-06-24-CNRS/Makefile b/talks-public/2022-06-24-CNRS/Makefile
new file mode 100644
index 0000000..68fbee7
--- /dev/null
+++ b/talks-public/2022-06-24-CNRS/Makefile
@@ -0,0 +1 @@
+include ../Makefile.slides