diff --git a/README.md b/README.md
index fceca57..e44df02 100644
--- a/README.md
+++ b/README.md
@@ -718,6 +718,20 @@ sudo add-apt-repository ppa:go-for-it-team/go-for-it-daily && sudo apt-get updat
 sudo apt-get install go-for-it
 ```
 
+## i3 window manager
+
+Añadimos el repo:
+
+``` bash
+cd ~/tmp
+$ /usr/lib/apt/apt-helper download-file https://debian.sur5r.net/i3/pool/main/s/sur5r-keyring/sur5r-keyring_2021.02.02_all.deb keyring.deb SHA256:cccfb1dd7d6b1b6a137bb96ea5b5eef18a0a4a6df1d6c0c37832025d2edaa710
+
+# dpkg -i ./keyring.deb
+# echo "deb http://debian.sur5r.net/i3/ $(grep '^DISTRIB_CODENAME=' /etc/lsb-release | cut -f2 -d=) universe" >> /etc/apt/sources.list.d/sur5r-i3.list
+# apt update
+# apt install i3
+```
+
 # Documentación
 
 ## Vanilla LaTeX
diff --git a/out/LinuxMintUlyana.dw b/out/LinuxMintUlyana.dw
index 508ab3b..25c9f44 100644
--- a/out/LinuxMintUlyana.dw
+++ b/out/LinuxMintUlyana.dw
@@ -591,6 +591,20 @@ sudo add-apt-repository ppa:go-for-it-team/go-for-it-daily && sudo apt-get updat
 sudo apt-get install go-for-it
 </code>
 
+===== i3 window manager =====
+
+Añadimos el repo:
+
+<code bash>
+cd ~/tmp
+$ /usr/lib/apt/apt-helper download-file https://debian.sur5r.net/i3/pool/main/s/sur5r-keyring/sur5r-keyring_2021.02.02_all.deb keyring.deb SHA256:cccfb1dd7d6b1b6a137bb96ea5b5eef18a0a4a6df1d6c0c37832025d2edaa710
+
+# dpkg -i ./keyring.deb
+# echo "deb http://debian.sur5r.net/i3/ $(grep '^DISTRIB_CODENAME=' /etc/lsb-release | cut -f2 -d=) universe" >> /etc/apt/sources.list.d/sur5r-i3.list
+# apt update
+# apt install i3
+</code>
+
 ====== Documentación ======
 
 ===== Vanilla LaTeX =====
diff --git a/out/LinuxMintUlyana.epub b/out/LinuxMintUlyana.epub
index 94c5835..e7ee53c 100644
Binary files a/out/LinuxMintUlyana.epub and b/out/LinuxMintUlyana.epub differ
diff --git a/out/LinuxMintUlyana.mw b/out/LinuxMintUlyana.mw
index de1bacf..7680d87 100644
--- a/out/LinuxMintUlyana.mw
+++ b/out/LinuxMintUlyana.mw
@@ -507,6 +507,17 @@ Si de todas formas lo quieres instalar, aquí tienes los comandos:
 
 <pre class="{bash}">sudo add-apt-repository ppa:go-for-it-team/go-for-it-daily &amp;&amp; sudo apt-get update
 sudo apt-get install go-for-it</pre>
+== i3 window manager ==
+
+Añadimos el repo:
+
+<syntaxhighlight lang="bash">cd ~/tmp
+$ /usr/lib/apt/apt-helper download-file https://debian.sur5r.net/i3/pool/main/s/sur5r-keyring/sur5r-keyring_2021.02.02_all.deb keyring.deb SHA256:cccfb1dd7d6b1b6a137bb96ea5b5eef18a0a4a6df1d6c0c37832025d2edaa710
+
+# dpkg -i ./keyring.deb
+# echo "deb http://debian.sur5r.net/i3/ $(grep '^DISTRIB_CODENAME=' /etc/lsb-release | cut -f2 -d=) universe" >> /etc/apt/sources.list.d/sur5r-i3.list
+# apt update
+# apt install i3</syntaxhighlight>
 = Documentación =
 
 == Vanilla LaTeX ==
diff --git a/out/LinuxMintUlyana.odt b/out/LinuxMintUlyana.odt
index 49ffc97..3dbefa1 100644
Binary files a/out/LinuxMintUlyana.odt and b/out/LinuxMintUlyana.odt differ
diff --git a/out/LinuxMintUlyana.pdf b/out/LinuxMintUlyana.pdf
index 90681e2..1341426 100644
Binary files a/out/LinuxMintUlyana.pdf and b/out/LinuxMintUlyana.pdf differ
diff --git a/out/LinuxMintUlyana.tex b/out/LinuxMintUlyana.tex
index e7fb15b..70756fb 100644
--- a/out/LinuxMintUlyana.tex
+++ b/out/LinuxMintUlyana.tex
@@ -995,6 +995,23 @@ sudo add-apt-repository ppa:go-for-it-team/go-for-it-daily && sudo apt-get updat
 sudo apt-get install go-for-it
 \end{verbatim}
 
+\hypertarget{i3-window-manager}{%
+\subsection{i3 window manager}\label{i3-window-manager}}
+
+Añadimos el repo:
+
+\begin{Shaded}
+\begin{Highlighting}[]
+\BuiltInTok{cd}\NormalTok{ \textasciitilde{}/tmp}
+\ExtensionTok{$}\NormalTok{ /usr/lib/apt/apt{-}helper download{-}file https://debian.sur5r.net/i3/pool/main/s/sur5r{-}keyring/sur5r{-}keyring\_2021.02.02\_all.deb keyring.deb SHA256:cccfb1dd7d6b1b6a137bb96ea5b5eef18a0a4a6df1d6c0c37832025d2edaa710}
+
+\CommentTok{\# dpkg {-}i ./keyring.deb}
+\CommentTok{\# echo "deb http://debian.sur5r.net/i3/ $(grep \textquotesingle{}\^{}DISTRIB\_CODENAME=\textquotesingle{} /etc/lsb{-}release | cut {-}f2 {-}d=) universe" \textgreater{}\textgreater{} /etc/apt/sources.list.d/sur5r{-}i3.list}
+\CommentTok{\# apt update}
+\CommentTok{\# apt install i3}
+\end{Highlighting}
+\end{Shaded}
+
 \hypertarget{documentaciuxf3n}{%
 \section{Documentación}\label{documentaciuxf3n}}
 
diff --git a/src/250_extra.md b/src/250_extra.md
index 3d88e46..77eabb9 100644
--- a/src/250_extra.md
+++ b/src/250_extra.md
@@ -3,7 +3,6 @@
 ## Utilidades
 
 
-
 gpick con
 
 :    _Agave_ y _pdftk_ ya no existen, nos pasamos a _gpick_ y _poppler-utils_
@@ -143,3 +142,18 @@ Si de todas formas lo quieres instalar, aquí tienes los comandos:
 sudo add-apt-repository ppa:go-for-it-team/go-for-it-daily && sudo apt-get update
 sudo apt-get install go-for-it
 ~~~~
+
+
+## i3 window manager
+
+Añadimos el repo:
+
+```bash
+cd ~/tmp
+$ /usr/lib/apt/apt-helper download-file https://debian.sur5r.net/i3/pool/main/s/sur5r-keyring/sur5r-keyring_2021.02.02_all.deb keyring.deb SHA256:cccfb1dd7d6b1b6a137bb96ea5b5eef18a0a4a6df1d6c0c37832025d2edaa710
+
+# dpkg -i ./keyring.deb
+# echo "deb http://debian.sur5r.net/i3/ $(grep '^DISTRIB_CODENAME=' /etc/lsb-release | cut -f2 -d=) universe" >> /etc/apt/sources.list.d/sur5r-i3.list
+# apt update
+# apt install i3
+```