diff --git a/talks-public/2021-11-12-sfscon/2021-11-12-sfscon.org b/talks-public/2021-11-12-sfscon/2021-11-12-sfscon.org
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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: The Great Library of Source Code
+#+BEAMER_HEADER: \date[2021-11-12, SFScon]{12 November 2021\\SFScon, Bolzano, Italy\\[-1ex]}
+#+DATE: 12 November 2021
+
+#+INCLUDE: "../../common/modules/prelude-toc.org" :minlevel 1
+#+INCLUDE: "../../common/modules/169.org"
+#+BEAMER_HEADER: \institute{Institut Polytechnique de Paris \& Software Heritage\\zack@upsilon.cc / @zacchiro / @zacchiro@mastodon.xyz}
+#+BEAMER_HEADER: \author{Stefano Zacchiroli}
+
+* The Free Software commons
+** Our Software Commons
+   #+INCLUDE: "../../common/modules/foss-commons.org::#commonsdef" :only-contents t
+   #+BEAMER: \pause
+*** Source code is /a precious part/ of our commons
+     \hfill are we taking care of it?
+  #+INCLUDE: "../../common/modules/swh-motivations-foss.org::#fragile" :minlevel 2
+
+* Software Heritage
+  #+INCLUDE: "../../common/modules/swh-goals-oneslide-vertical.org::#goals" :minlevel 2
+  #+INCLUDE: "../../common/modules/principles-compact.org::#principles" :minlevel 2
+  #+INCLUDE: "../../common/modules/status-extended.org::#archivinggoals" :minlevel 2
+  #+INCLUDE: "../../common/modules/status-extended.org::#architecture" :minlevel 2 :only-contents t
+  #+INCLUDE: "../../common/modules/data-model.org::#merklestruct" :minlevel 2
+  #+INCLUDE: "../../common/modules/status-extended.org::#archive" :minlevel 2
+** Software Heritage and GNU Guix                                  :noexport:
+   #+BEAMER: \begin{center}\hfill\includegraphics[height=0.6\textheight]{swh-guix-1}\hfill\includegraphics[height=0.6\textheight]{swh-guix-2}\hfill\end{center}
+   #+BEAMER: \scriptsize
+   - \url{https://www.softwareheritage.org/2019/04/18/software-heritage-and-gnu-guix-join-forces-to-enable-long-term-reproducibility/}
+   - \url{https://guix.gnu.org/blog/2019/connecting-reproducible-deployment-to-a-long-term-source-code-archive/}
+
+* Using the archive
+** Web interface
+   #+BEAMER: \centering \huge
+   #+BEAMER: \href{https://archive.softwareheritage.org}{archive.softwareheritage.org}
+   #+BEAMER: \vfill
+   #+BEAMER: DEMO TIME !
+
+   # searches:
+   # - gnu gcc git
+   # - git-annex
+   # - apollo11 chrislgarry
+   # - unix history dspinellis
+
+ #+INCLUDE: "../../common/modules/status-extended.org::#apiintro" :minlevel 2
+ #+INCLUDE: "../../common/modules/swhid.org::#oneslide" :minlevel 2
+ #+INCLUDE: "../../common/modules/swhid.org::#swhidentify" :minlevel 2
+ #+INCLUDE: "../../common/modules/swh-fuse.org::#oneslide" :minlevel 2
+ #+INCLUDE: "../../common/modules/swh-fuse.org::#tutorial" :minlevel 2 :only-contents t
+
+* How you can help
+** You can help!
+*** Expanding archive coverage
+    - [[https://save.softwareheritage.org/][save.softwareheritage.org]] ← on-demand archival of source code you care about
+*** Financially
+    - Donations: [[https://www.softwareheritage.org/donate/][www.softwareheritage.org/donate/]]
+    - Sponsoring: [[https://www.softwareheritage.org/support/sponsors/][www.softwareheritage.org/support/sponsors/]]
+*** Coding
+    - Developer info: [[https://www.softwareheritage.org/community/developers/][www.softwareheritage.org/community/developers/]]
+*** Work with us
+    - Job openings: [[https://www.softwareheritage.org/jobs/][www.softwareheritage.org/jobs]]
+    - Internships: [[https://wiki.softwareheritage.org/wiki/Internships][wiki.softwareheritage.org/wiki/Internships]]
+
+* FAQ                                                            :B_appendix:
+  :PROPERTIES:
+  :BEAMER_env: appendix
+  :END:
+** Q: do you archive /only/ Free Software?                         :noexport:
+   - We only crawl origins /meant/ to host source code (e.g., forges)
+   - Most (~90%) of what we /actually/ retrieve is textual content
+   #+BEAMER: \vfill
+*** Our goal
+    Archive *the entire Free Software Commons*, present and future.
+
+  #+BEAMER: \vfill
+*** 
+   - Large parts of what we retrieve is /already/ Free Software, today
+   - Most of the rest /will become/ Free Software in the long term
+     - e.g., at copyright expiration
diff --git a/talks-public/2021-11-12-sfscon/Makefile b/talks-public/2021-11-12-sfscon/Makefile
new file mode 100644
index 0000000..68fbee7
--- /dev/null
+++ b/talks-public/2021-11-12-sfscon/Makefile
@@ -0,0 +1 @@
+include ../Makefile.slides