32 files changed, 143 insertions, 106 deletions

diff --git a/src/git/git.md b/src/git/git.md
index ae0afe7..290a7d7 100644
--- a/src/git/git.md
+++ b/src/git/git.md
@@ -15,7 +15,13 @@ Here are some highlights of what you can find in my git repositories.
 ## Programs and scripts
 
 * [nissy](https://git.tronto.net/nissy): A Rubik's cube solver,
-  intended primarily as a tool for practicing FMC.
+  intended primarily as a tool for practicing FMC. Since april 2023
+  the project has been split into the FMC trainer
+  [nissy-fmc](https://git.tronto.net/nissy-fmc) and the optimal solver
+  [nissy-nx](https://git.tronto.net/nissy-nx). Both are work in
+  progress. The stable version is available at
+  [nissy-classic](https://git.tronto.net/nissy-classic), and is
+  maintained with bugfixes.
   Check out also [the project's homepage](https://nissy.tronto.net).
 * [sdep](https://git.tronto.net/sdep): A minimalistic
   "date+event" line parser. Can be used in combination with some shell scripts
@@ -49,4 +55,7 @@ I taught at the [University of Luxembourg](https://wwwen.uni.lu)
 
 * [My personal website](https://git.tronto.net/sebastiano.tronto.net):
   source files (mostly markdown) and build scripts for this website.
+* [My git hooks](https://git.tronto.net/git-hooks), used to keep my
+  web git instance up do date automatically when I push new changes. See
+  [this blog post](https://sebastiano.tronto.net/blog/2022-11-23-git-host).
 * [Platonic solids](https://git.tronto.net/platonicsolids) in TikZ (LaTeX).
diff --git a/src/home.md b/src/home.md
index e8ad616..e34d33a 100644
--- a/src/home.md
+++ b/src/home.md
@@ -2,10 +2,11 @@
 
 ![A picture of me](me.png "Me")
 
-Hello! I am a scientific software engineer based in Leiden, The Netherlands.
+Hello! I am a software developer based in Leiden, The Netherlands.
 
 Previously I was a PhD student in Mathematics at the Universities of
-Luxembourg and Leiden. Check out my [list of papers and talks](research).
+Luxembourg and Leiden. You can check out my [list of papers](research)
+and [my talks](talks).
 
 During my free time I enjoy tinkering with my computer, [programming](git)
 and playing with the [Rubik's cube](speedcubing).
diff --git a/src/research/research.md b/src/research/research.md
index 20cd1fe..ca5b4a0 100644
--- a/src/research/research.md
+++ b/src/research/research.md
@@ -5,10 +5,11 @@ After obtaining a bachelor degree in Trento in 2016 I have completed the
 special focus on number theory and algebraic geometry. I then moved on to
 obtain a joint PhD at the universities of Luxembourg and Leiden, under
 the supervision of [Antonella Perucca](http://antonellaperucca.net) and
-[Peter Bruin](https://www.math.leidenuniv.nl/~pbruin). I have collected
-in this page the list of papers I puplished during my PhD, as well as
-slides or notes for all the talks I have given and my theses (Bachelor,
-Master, PhD).
+[Peter Bruin](https://www.math.leidenuniv.nl/~pbruin).
+
+I have collected in this page the list of papers I puplished during my PhD,
+as well as theses (Bachelor, Master, PhD). See [my talks page](../talks)
+for a list of slides and notes of my talks.
 
 ## Theses
 
@@ -69,100 +70,3 @@ Master, PhD).
 * Perucca, Antonella; Sgobba, Pietro; Tronto, Sebastiano.
   *Explicit Kummer theory for the rational numbers.*
   International Journal of Number Theory (2020).
-
-## Talks
-
-* *Kummer theory for elliptic curves*.
-  Short talk for Tarrach Prize 2023, March 2023.
-  [Slides: [pdf, 288Kb](kummer-tarrach.pdf)]
-
-* *Kummer theory for commutative algebraic groups*.
-  Seminar at the university of Leiden, September 2022.
-  [Slides: [pdf, 1.2Mb](slides-kummer-final.pdf)]
-
-* *My journey in Kummer theory*.
-  Leiden-Luxembourg Number Theory PhD Days 2022, July 5-6.
-  [Slides: [pdf, 521Kb](slides-journey-kummer.pdf)] 
-
-* *A tour of group theory with our companion cube*.
-  University of Luxembourg PhD seminar, May 2022.
-  [Slides: [pdf, 1.1Mb](group-cube.pdf)]
-
-* *Kummer theory via (J,T)-extensions*.
-  University of Leiden algebra seminar, May 2022;
-  similar to *A category of division modules*, see below.
-
-* *Kummer theory for algebraic groups*.
-  Nederlands Matematisch Congres, April 2022;
-  repeated at the DIAMANT symposium, April 2022.
-  [Notes (NMC): [pdf, 215Kb](slides-kummer-kwg.pdf);
-   Script (NMC): [txt, 9Kb](script-kummer-kwg.txt);
-   Notes (DIAMANT, longer version): [pdf, 223Kb](slides-kummer-diamant.pdf)]
-
-* *Division in modules*.
-  University of Leiden algebra seminar, April 2022;
-  similar to *A generalization of injective modules* and
-  *Division in modules and Kummer theory*, see below.
-  [Notes: [pdf, 245Kb](division-leiden.pdf)]
-
-* *Division in modules and Kummer theory*.
-  Invited talk at the University of Groningen, February 2022.
-  [Slides: [pdf, 249Kb](division-groningen.pdf)]
-
-* *A category of division modules*.
-  University of Luxembourg Number Theory seminar, November 2021.
-  [Notes: [pdf, 270Kb](notes-division-modules.pdf)]
-
-* *Introduction to étale cohomology*.
-  University of Luxembourg seminar series on perverse sheaves, October 2021.
-  [Notes: [pdf, 237Kb](notes-etale.pdf)]
-
-* *A generalization of injective modules*.
-  University of Luxembourg Number Theory seminar, October 2021.
-  [Notes: [pdf, 259Kb](notes-injectivity.pdf)]
-
-* *Integer factorization and elliptic curves*.
-  University of Leiden Bachelor seminar (guest talk), April 2021.
-  [Slides: [pdf, 393Kb](slides-ecm.pdf)]
-
-* *Group cohomology and elliptic curves*.
-  Invited talk at Number Theory Online conference, February 2021.
-  [Slides: [pdf, 210Kb](slides-groupcohomec.pdf);
-   Video: [link](https://vimeo.com/526814236/1a640285c0?embedded=true&source=video_title&owner=47245911)]
-
-* *Kummer theory for algebraic groups*.
-  Invited talk at the University of Bristol (online), October 2020.
-  [Slides: [pdf, 239Kb](slides-tronto-bristol.pdf)]
-
-* *Algebraic groups and field extensions*.
-  University of Luxembourg PhD seminar (online), April 2020.
-  [Slides: [pdf, 280Kb](slides-alggroupsfieldext.pdf)]
-
-* *Field extensions and elliptic curves*.
-  University of Luxembourg PhD Day, October 2019.
-  [Slides: [pdf, 6.0Mb](slides-fieldextec.pdf)]
-
-* *Kummer theory for elliptic curves*.
-  University of Leiden algebra seminar, September 2019;
-  repeated with slides at the DIAMANT symposium, November 2019 and
-  at Seminari de Teoria de Nombres de Barcelona, February 2020.
-  [Notes: [pdf, 181Kb](notes-kummerec.pdf);
-   Slides DIAMANT: [pdf, 271Kb](slides-kummec-diamant.pdf);
-   Slides Barcelona: [pdf, 290Kb](slides-kummec-barcelona.pdf)].
-
-* *Divisibility of points in algebraic groups*.
-  Invited talk at the University of the Basque Country, May 2019.
-  [Notes: [pdf, 231Kb](notes-bilbao.pdf)]
-
-* *Kummer theory for number fields*.
-  Fifth symposium of the Roman Number Theory association, April 2019;
-  repeated at the Algant Alumni symposium in Benasque, May 2019.
-  [Slides: [pdf, 291Kb](slides-kummerdegrees.pdf)]
-
-* *The local-global principle*.
-  University of Luxembourg interdisciplinary seminar, March 2019.
-  [Slides: [pdf, 598Kb](slides-local-global.pdf)]
-
-* *Local-global principle for torsion*.
-  University of Luxembourg Number Theory seminar, November 2018.
-  [Notes: [pdf, 208Kb](notes-katz.pdf)]
diff --git a/src/speedcubing/speedcubing.md b/src/speedcubing/speedcubing.md
index 6f8e6b4..e9d0f1e 100644
--- a/src/speedcubing/speedcubing.md
+++ b/src/speedcubing/speedcubing.md
@@ -4,8 +4,10 @@
 
 I have been practicing
 [speedcubing](https://en.wikipedia.org/wiki/Speedcubing) since 2008,
-and since 2011 I have competed in more than 50 officially recognized
+and since 2011 I have competed in more than 60 officially recognized
 [WCA](https://www.worldcubeassociation.org) competitions.
+I am currently the leader of the WCA Disciplinary Committee and
+a WCA Junior Delegate.
 
 I use the Roux method to solve the Rubik's cube in about 8 seconds
 on average.  I currently hold the world record for the single best
@@ -16,7 +18,8 @@ records in blindfolded events.  You can see all my official results
 If you are interested in Fewest Moves solving, check out my [FMC
 Tutorial](https://fmcsolves.cubing.net/). I also upload irregularly on
 [my YouTube channel](https://www.youtube.com/c/SebastianoTronto), but
-most videos are just me solving the cube.
+most videos consist just of me solving the cube without any comment
+or explanation.
 
 ## Links
 
@@ -25,3 +28,4 @@ most videos are just me solving the cube.
 * [My FMC Tutorial](https://fmcsolves.cubing.net/)
 * [My 3BLD algs for UBL/UR](https://docs.google.com/spreadsheets/d/17sL1RuiYijTMiQkBn_d5xthdgAoxGE8oaH-Po-PZ58s/edit?usp=sharing) (outdated, not very good)
 * [Solving a cube... without a cube](https://www.speedsolving.com/forum/threads/the-3x3x3-example-solve-thread.14345/page-273#post-1173067)
+* [Nissy, a Rubik's cube solver and FMC assistant](https://nissy.tronto.net)
diff --git a/src/talks/cube-2min-slides.pdf b/src/talks/cube-2min-slides.pdf
new file mode 100644
index 0000000..f332eb8
--- /dev/null
+++ b/src/talks/cube-2min-slides.pdf
diff --git a/src/talks/cubo-cagliari.pdf b/src/talks/cubo-cagliari.pdf
new file mode 100644
index 0000000..2efdee3
--- /dev/null
+++ b/src/talks/cubo-cagliari.pdf
diff --git a/src/research/division-groningen.pdf b/src/talks/division-groningen.pdf
index c2ad7f6..c2ad7f6 100644
--- a/src/research/division-groningen.pdf
+++ b/src/talks/division-groningen.pdf
diff --git a/src/research/division-leiden.pdf b/src/talks/division-leiden.pdf
index a4566c2..a4566c2 100644
--- a/src/research/division-leiden.pdf
+++ b/src/talks/division-leiden.pdf
diff --git a/src/research/group-cube.pdf b/src/talks/group-cube.pdf
index 191b9db..191b9db 100644
--- a/src/research/group-cube.pdf
+++ b/src/talks/group-cube.pdf
diff --git a/src/research/kummer-tarrach.pdf b/src/talks/kummer-tarrach.pdf
index 7dbe643..7dbe643 100644
--- a/src/research/kummer-tarrach.pdf
+++ b/src/talks/kummer-tarrach.pdf
diff --git a/src/talks/linuxday2019.pdf b/src/talks/linuxday2019.pdf
new file mode 100644
index 0000000..7a18aa1
--- /dev/null
+++ b/src/talks/linuxday2019.pdf
diff --git a/src/research/notes-bilbao.pdf b/src/talks/notes-bilbao.pdf
index 5c0500c..5c0500c 100644
--- a/src/research/notes-bilbao.pdf
+++ b/src/talks/notes-bilbao.pdf
diff --git a/src/research/notes-division-modules.pdf b/src/talks/notes-division-modules.pdf
index 0883299..0883299 100644
--- a/src/research/notes-division-modules.pdf
+++ b/src/talks/notes-division-modules.pdf
diff --git a/src/research/notes-etale.pdf b/src/talks/notes-etale.pdf
index 6b31e10..6b31e10 100644
--- a/src/research/notes-etale.pdf
+++ b/src/talks/notes-etale.pdf
diff --git a/src/research/notes-injectivity.pdf b/src/talks/notes-injectivity.pdf
index 7dd3da8..7dd3da8 100644
--- a/src/research/notes-injectivity.pdf
+++ b/src/talks/notes-injectivity.pdf
diff --git a/src/research/notes-katz.pdf b/src/talks/notes-katz.pdf
index c248b71..c248b71 100644
--- a/src/research/notes-katz.pdf
+++ b/src/talks/notes-katz.pdf
diff --git a/src/research/notes-kummerec.pdf b/src/talks/notes-kummerec.pdf
index 9a91d78..9a91d78 100644
--- a/src/research/notes-kummerec.pdf
+++ b/src/talks/notes-kummerec.pdf
diff --git a/src/research/script-kummer-kwg.txt b/src/talks/script-kummer-kwg.txt
index 8759ee7..8759ee7 100644
--- a/src/research/script-kummer-kwg.txt
+++ b/src/talks/script-kummer-kwg.txt
diff --git a/src/research/slides-alggroupsfieldext.pdf b/src/talks/slides-alggroupsfieldext.pdf
index 2b48adb..2b48adb 100644
--- a/src/research/slides-alggroupsfieldext.pdf
+++ b/src/talks/slides-alggroupsfieldext.pdf
diff --git a/src/research/slides-ecm.pdf b/src/talks/slides-ecm.pdf
index 9305984..9305984 100644
--- a/src/research/slides-ecm.pdf
+++ b/src/talks/slides-ecm.pdf
diff --git a/src/research/slides-fieldextec.pdf b/src/talks/slides-fieldextec.pdf
index 6b54ff7..6b54ff7 100644
--- a/src/research/slides-fieldextec.pdf
+++ b/src/talks/slides-fieldextec.pdf
diff --git a/src/research/slides-groupcohomec.pdf b/src/talks/slides-groupcohomec.pdf
index 72a2a3c..72a2a3c 100644
--- a/src/research/slides-groupcohomec.pdf
+++ b/src/talks/slides-groupcohomec.pdf
diff --git a/src/research/slides-journey-kummer.pdf b/src/talks/slides-journey-kummer.pdf
index 9edf804..9edf804 100644
--- a/src/research/slides-journey-kummer.pdf
+++ b/src/talks/slides-journey-kummer.pdf
diff --git a/src/research/slides-kummec-barcelona.pdf b/src/talks/slides-kummec-barcelona.pdf
index 7af439d..7af439d 100644
--- a/src/research/slides-kummec-barcelona.pdf
+++ b/src/talks/slides-kummec-barcelona.pdf
diff --git a/src/research/slides-kummec-diamant.pdf b/src/talks/slides-kummec-diamant.pdf
index d66f002..d66f002 100644
--- a/src/research/slides-kummec-diamant.pdf
+++ b/src/talks/slides-kummec-diamant.pdf
diff --git a/src/research/slides-kummer-diamant.pdf b/src/talks/slides-kummer-diamant.pdf
index 2160eac..2160eac 100644
--- a/src/research/slides-kummer-diamant.pdf
+++ b/src/talks/slides-kummer-diamant.pdf
diff --git a/src/research/slides-kummer-final.pdf b/src/talks/slides-kummer-final.pdf
index e24e01a..e24e01a 100644
--- a/src/research/slides-kummer-final.pdf
+++ b/src/talks/slides-kummer-final.pdf
diff --git a/src/research/slides-kummer-kwg.pdf b/src/talks/slides-kummer-kwg.pdf
index 3940f4a..3940f4a 100644
--- a/src/research/slides-kummer-kwg.pdf
+++ b/src/talks/slides-kummer-kwg.pdf
diff --git a/src/research/slides-kummerdegrees.pdf b/src/talks/slides-kummerdegrees.pdf
index 2b13012..2b13012 100644
--- a/src/research/slides-kummerdegrees.pdf
+++ b/src/talks/slides-kummerdegrees.pdf
diff --git a/src/research/slides-local-global.pdf b/src/talks/slides-local-global.pdf
index 32a84fd..32a84fd 100644
--- a/src/research/slides-local-global.pdf
+++ b/src/talks/slides-local-global.pdf
diff --git a/src/research/slides-tronto-bristol.pdf b/src/talks/slides-tronto-bristol.pdf
index 4ece0b7..4ece0b7 100644
--- a/src/research/slides-tronto-bristol.pdf
+++ b/src/talks/slides-tronto-bristol.pdf
diff --git a/src/talks/talks.md b/src/talks/talks.md
new file mode 100644
index 0000000..b7cea5b
--- /dev/null
+++ b/src/talks/talks.md
@@ -0,0 +1,119 @@
+# Talks
+
+## Cubing
+
+* *Cubo di Rubik e Speedcubing (ITA)*.
+  Invited talk at Università di Cagliari, January 2020.
+  [Slides: [pdf, 2.0Mb](cubo-cagliari.pdf)]
+
+* *The Rubik's cube group structure in 2 minutes*.
+  Speed talk at the AAN Symposium, May 2019.
+  [Slides: [pdf, 1.2Mb](cube-2min-slides.pdf)]
+
+## Math
+
+* *Kummer theory for elliptic curves*.
+  Short talk for Tarrach Prize 2023, March 2023.
+  [Slides: [pdf, 288Kb](kummer-tarrach.pdf)]
+
+* *Kummer theory for commutative algebraic groups*.
+  Seminar at the university of Leiden, September 2022.
+  [Slides: [pdf, 1.2Mb](slides-kummer-final.pdf)]
+
+* *My journey in Kummer theory*.
+  Leiden-Luxembourg Number Theory PhD Days 2022, July 5-6.
+  [Slides: [pdf, 521Kb](slides-journey-kummer.pdf)] 
+
+* *A tour of group theory with our companion cube*.
+  University of Luxembourg PhD seminar, May 2022.
+  [Slides: [pdf, 1.1Mb](group-cube.pdf)]
+
+* *Kummer theory via (J,T)-extensions*.
+  University of Leiden algebra seminar, May 2022;
+  similar to *A category of division modules*, see below.
+
+* *Kummer theory for algebraic groups*.
+  Nederlands Matematisch Congres, April 2022;
+  repeated at the DIAMANT symposium, April 2022.
+  [Notes (NMC): [pdf, 215Kb](slides-kummer-kwg.pdf);
+   Script (NMC): [txt, 9Kb](script-kummer-kwg.txt);
+   Notes (DIAMANT, longer version): [pdf, 223Kb](slides-kummer-diamant.pdf)]
+
+* *Division in modules*.
+  University of Leiden algebra seminar, April 2022;
+  similar to *A generalization of injective modules* and
+  *Division in modules and Kummer theory*, see below.
+  [Notes: [pdf, 245Kb](division-leiden.pdf)]
+
+* *Division in modules and Kummer theory*.
+  Invited talk at the University of Groningen, February 2022.
+  [Slides: [pdf, 249Kb](division-groningen.pdf)]
+
+* *A category of division modules*.
+  University of Luxembourg Number Theory seminar, November 2021.
+  [Notes: [pdf, 270Kb](notes-division-modules.pdf)]
+
+* *Introduction to étale cohomology*.
+  University of Luxembourg seminar series on perverse sheaves, October 2021.
+  [Notes: [pdf, 237Kb](notes-etale.pdf)]
+
+* *A generalization of injective modules*.
+  University of Luxembourg Number Theory seminar, October 2021.
+  [Notes: [pdf, 259Kb](notes-injectivity.pdf)]
+
+* *Integer factorization and elliptic curves*.
+  University of Leiden Bachelor seminar (guest talk), April 2021.
+  [Slides: [pdf, 393Kb](slides-ecm.pdf)]
+
+* *Group cohomology and elliptic curves*.
+  Invited talk at Number Theory Online conference, February 2021.
+  [Slides: [pdf, 210Kb](slides-groupcohomec.pdf);
+   [Video](https://vimeo.com/526814236/1a640285c0?embedded=true&source=video_title&owner=47245911)]
+
+* *Kummer theory for algebraic groups*.
+  Invited talk at the University of Bristol (online), October 2020.
+  [Slides: [pdf, 239Kb](slides-tronto-bristol.pdf)]
+
+* *Algebraic groups and field extensions*.
+  University of Luxembourg PhD seminar (online), April 2020.
+  [Slides: [pdf, 280Kb](slides-alggroupsfieldext.pdf)]
+
+* *Field extensions and elliptic curves*.
+  University of Luxembourg PhD Day, October 2019.
+  [Slides: [pdf, 6.0Mb](slides-fieldextec.pdf)]
+
+* *Kummer theory for elliptic curves*.
+  University of Leiden algebra seminar, September 2019;
+  repeated with slides at the DIAMANT symposium, November 2019 and
+  at Seminari de Teoria de Nombres de Barcelona, February 2020.
+  [Notes: [pdf, 181Kb](notes-kummerec.pdf);
+   Slides DIAMANT: [pdf, 271Kb](slides-kummec-diamant.pdf);
+   Slides Barcelona: [pdf, 290Kb](slides-kummec-barcelona.pdf)].
+
+* *Divisibility of points in algebraic groups*.
+  Invited talk at the University of the Basque Country, May 2019.
+  [Notes: [pdf, 231Kb](notes-bilbao.pdf)]
+
+* *Kummer theory for number fields*.
+  Fifth symposium of the Roman Number Theory association, April 2019;
+  repeated at the Algant Alumni symposium in Benasque, May 2019.
+  [Slides: [pdf, 291Kb](slides-kummerdegrees.pdf)]
+
+* *The local-global principle*.
+  University of Luxembourg interdisciplinary seminar, March 2019.
+  [Slides: [pdf, 598Kb](slides-local-global.pdf)]
+
+* *Local-global principle for torsion*.
+  University of Luxembourg Number Theory seminar, November 2018.
+  [Notes: [pdf, 208Kb](notes-katz.pdf)]
+
+## Software
+
+* *L'importanza del software libero nella ricerca (ITA)*.
+  Linux day in Feltre, October 2019.
+  [Slides: [pdf, 804Kb](linuxday2019.pdf);
+   [Video](https://www.youtube.com/watch?v=FB0YIYNp3rw)]
+
+* *Linux from scratch (ITA)*
+  Linux day in Sedico, October 2012.
+  [Video](https://www.youtube.com/watch?v=h7xW7iq-ApA).