diff --git a/flake.nix b/flake.nix
index 5dfc576..4881026 100644
--- a/flake.nix
+++ b/flake.nix
@@ -20,8 +20,7 @@
             scheme-basic
             latex-bin
             latexmk
-            babel-galician
-            hyphen-galician
+            collection-langspanish
             beamer
             biblatex
             biber
diff --git a/img/benefits/customization.png b/img/benefits/customization.png
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diff --git a/img/benefits/freedom.jpg b/img/benefits/freedom.jpg
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diff --git a/img/benefits/privacy.png b/img/benefits/privacy.png
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diff --git a/img/benefits/security.png b/img/benefits/security.png
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diff --git a/img/benefits/you-decide.jpg b/img/benefits/you-decide.jpg
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index 99baa5b..0000000
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diff --git a/img/icons/circular.png b/img/icons/circular.png
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diff --git a/img/icons/community.png b/img/icons/community.png
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diff --git a/img/icons/three-arrows.png b/img/icons/three-arrows.png
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diff --git a/img/logos/fsf.org.png b/img/logo-fsf.org.png
similarity index 100%
rename from img/logos/fsf.org.png
rename to img/logo-fsf.org.png
diff --git a/img/logos/gnu.png b/img/logo-gnu.png
similarity index 100%
rename from img/logos/gnu.png
rename to img/logo-gnu.png
diff --git a/img/logos/gpul.png b/img/logo-gpul.png
similarity index 100%
rename from img/logos/gpul.png
rename to img/logo-gpul.png
diff --git a/img/logos/osi.png b/img/logo-osi.png
similarity index 100%
rename from img/logos/osi.png
rename to img/logo-osi.png
diff --git a/img/logos/codeberg.png b/img/logos/codeberg.png
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diff --git a/img/logos/github.png b/img/logos/github.png
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diff --git a/img/logos/gitlab.png b/img/logos/gitlab.png
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diff --git a/img/logos/publiccode.png b/img/logos/publiccode.png
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diff --git a/img/logos/sourcehut.png b/img/logos/sourcehut.png
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diff --git a/img/logos/linux-tux.png b/img/tux.png
similarity index 100%
rename from img/logos/linux-tux.png
rename to img/tux.png
diff --git a/main.tex b/main.tex
index d4f0a7f..6b92537 100644
--- a/main.tex
+++ b/main.tex
@@ -1,5 +1,5 @@
 \documentclass{beamer}
-\usepackage[galician]{babel}
+\usepackage[spanish]{babel}
 \usetheme{Madrid}
 
 \usepackage[backend=biber, language=auto]{biblatex}
@@ -9,13 +9,6 @@
 \usepackage{graphicx}
 \usepackage{emoji}
 
-\newcommand\blfootnote[1]{%
-  \begingroup
-  \renewcommand\thefootnote{}\footnote{#1}%
-  \addtocounter{footnote}{-1}%
-  \endgroup
-}
-
 \title{Software Libre}
 
 \subtitle{¿Por qué é tan importante?}
@@ -26,7 +19,7 @@
 
 \date{\today}
 
-\logo{\includegraphics[height=1cm]{img/logos/gpul}}
+\logo{\includegraphics[height=1cm]{img/logo-gpul.png}}
 
 \begin{document}
 	
@@ -49,11 +42,9 @@
 		\end{block}
 		
 		\vspace{0.5em}
-		\begin{figure}
-			\centering
-			\includegraphics[width=0.7\linewidth]{img/logos/fsf.org}
-			\label{fig:logo-fsf}
-		\end{figure}
+		\begin{center}
+			\includegraphics[width=0.7\linewidth]{img/logo-fsf.org}
+		\end{center}
 	\end{frame}
 	
 	\subsection{Open source}
@@ -69,11 +60,9 @@
 	\end{itemize}
 	
 	\vspace{0.5em}
-	\begin{figure}
-		\centering
-		\includegraphics[width=0.6\linewidth]{img/logos/osi}
-		\label{fig:logo-osi}
-	\end{figure}
+	\begin{center}
+		\includegraphics[width=0.6\linewidth]{img/logo-osi.png}
+	\end{center}
 	
 	\cite{gnu_open_source}
 	\cite{open_source_def}
@@ -95,11 +84,9 @@
 	\end{itemize}
 	
 	\vspace{0.5em}
-	\begin{figure}
-		\centering
-		\includegraphics[width=0.2\linewidth]{img/logos/linux-tux}
-		\label{fig:tux}
-	\end{figure}
+	\begin{center}
+		\includegraphics[width=0.2\linewidth]{img/tux.png}
+	\end{center}
 	\end{frame}
 	
 	\begin{frame}
@@ -119,221 +106,14 @@
 		\end{itemize}
 		
 		\vspace{0.5em}
-		\begin{figure}
-			\centering
-			\includegraphics[width=0.2\linewidth]{img/logos/gnu}
-			\label{fig:logo-gnu}
-		\end{figure}
+		\begin{center}
+			\includegraphics[width=0.2\linewidth]{img/logo-gnu.png}
+		\end{center}
 		
 		\vspace{-2em}
 		\cite{gnu_linux}
 	\end{frame}
 	
-	\section{Por qué?}
-	\begin{frame}
-		\frametitle{Por qué?}
-		\begin{columns}
-		\column{0.5\textwidth}
-		\begin{itemize}
-			\item<1-> Liberdade \emoji{raised-fist}
-			\item<2-> Seguridade \emoji{locked}
-			\only<2>{
-				\begin{itemize}
-					\item Auditorías
-					\item Calquera pode atopar bugs
-					\item As empresas estan motivadas a melloralo
-				\end{itemize}
-			}
-			\item<3-> Privacidade \emoji{ninja}
-			\only<3>{
-				\begin{itemize}
-					\item Non é unha caixa negra
-					\item Se un proxecto toma unha dirección que non apoias, \textit{fork it!}
-					\item A comunidade adoita velar pola privacidade
-				\end{itemize}
-			}
-			\item<4-> Personalización \emoji{paintbrush}
-			\item<5-> Ti decides \emoji{globe-showing-europe-africa}
-		\end{itemize}
-		\column{0.5\textwidth}
-		\only<1>{
-			\begin{figure}
-				\centering
-				\includegraphics[width=\linewidth]{img/benefits/freedom}
-				\label{fig:frenchfreedom}
-			\end{figure}
-		}
-		\only<2>{
-			\vspace{-5em}
-			\begin{figure}
-				\centering
-				\includegraphics[width=0.8\linewidth]{img/benefits/security}
-				\label{fig:logo-bitwarden}
-			\end{figure}
-		}
-		\only<3>{
-			\begin{figure}
-				\centering
-				\includegraphics[width=\linewidth]{img/benefits/privacy}
-				\label{fig:logo-privacytools.io}
-			\end{figure}
-		}
-		\only<4>{
-			\begin{figure}
-				\centering
-				\includegraphics[width=\linewidth]{img/benefits/customization}
-				\label{fig:nixos-config-screenshot}
-			\end{figure}
-		}
-		\only<5>{
-			\begin{figure}
-				\centering
-				\includegraphics[width=\linewidth]{img/benefits/you-decide}
-				\label{fig:person-coding}
-			\end{figure}
-		}
-		\end{columns}
-		
-		
-		 \only<2>{
-		 	\vspace{-3em}
-		   	\begin{alertblock}{Ollo!}
-				Que un software sexa libre e/ou de código aberto \textbf{non implica directamente que sexa seguro}.
-			\end{alertblock}
-		}
-	\end{frame}
-
-	\subsection{Public Money, Public Code!}
-	\begin{frame}
-		\frametitle{Public Money, Public Code!}
-
-		\begin{figure}
-			\includegraphics[height=20ex]{img/logos/publiccode}
-			\label{fig:pubiccode-logo}
-		\end{figure}
-
-		\only<1>{
-			\centering
-			\huge{O código pagado polos cidadáns debería estar disponible para os cidadáns!}
-		}
-
-		\begin{itemize}
-			\item<2-> Aforro de impostos \emoji{euro-banknote}
-			\item<3-> Colaboración \emoji{handshake}
-			\item<4-> Accesible a todos \emoji{people-hugging}
-			\item<5-> Estimular a innovación \emoji{light-bulb}
-		\end{itemize}
-
-		\vspace{5ex}
-		\cite{publiccodeeu}
-	\end{frame}
-
-	\section{Facendo software libre}
-	\subsection{Licenzas}
-	\begin{frame}
-		\frametitle{Cal describe mellor a túa situación?}
-		\begin{columns}
-		\begin{column}{0.33\textwidth}
-            \centering
-            \includegraphics[width=0.5\textwidth]{img/icons/community} \\
-            \large{\textbf{Necesito traballar nunha comunidade}} \\
-            Utiliza a licenza preferida pola comunidade á que estás contribuíndo ou da que dependes. O teu proxecto vai encaixar perfectamente.
-        \end{column}
-
-        \begin{column}{0.33\textwidth}
-            \centering
-            \includegraphics[width=0.5\textwidth]{img/icons/three-arrows} \\
-            \large{\textbf{Quero que sexa sinxela e permisiva}} \\
-            A licenza \textbf{\href{https://choosealicense.com/licenses/mit/}{MIT}} é breve e directa. Permite ás persoas facer case calquera cousa co teu proxecto, como crear e distribuir versións de código pechado.
-        \end{column}
-        
-        \begin{column}{0.33\textwidth}
-            \centering
-            \includegraphics[width=0.5\textwidth]{img/icons/circular} \\
-            \large{\textbf{Impórtame que se compartan as melloras}} \\
-            A \textbf{\href{https://choosealicense.com/licenses/gpl-3.0/}{GNU GPLv3}} tamén permite facer case calquera cousa co teu proxecto, \textit{agás} distribuir versións de código pechado.
-        \end{column}
-    	\end{columns}
-
-		\blfootnote{Fortemente inspirado en \textit{choosealicense.com} \cite{choosealicensecom}}
-	\end{frame}
-
-	\begin{frame}
-		\frametitle{Controversia coa GPL}
-
-		\begin{itemize}        
-			\item<1-> \textbf{Controversias principais:}
-			\begin{itemize}
-				\item \textbf{Infecciosa:} A inclusión de código con licenza GPL en calquera proxecto require a mesma licenza neste tamén.
-				\item \textbf{Restricións de uso:} Restricións excesivas, limitando a capacidade de integración con software propietario.
-				\item \textbf{Compatibilidade:} Pode ser incompatible con outras licenzas, dificultando a colaboración entre proxectos.
-				\item \textbf{Modelo de negocio:} As empresas deben adaptarse a un modelo de negocio que non sempre é viable.
-			\end{itemize}
-			
-			\item<2-> \textbf{Alternativas:}
-			\begin{itemize}
-				\item \textbf{MIT License}
-				\item \textbf{Apache License 2.0}
-				\item \textbf{Mozilla Public License (MPL)}
-			\end{itemize}
-		\end{itemize}
-	\end{frame}
-
-	\subsection{Forxas}
-	\begin{frame}
-		\begin{columns}
-		\column{0.5\textwidth}
-			\begin{itemize}
-				\item<1-4>\href{https://github.com}{GitHub}?
-				\begin{itemize}
-					\item<2-4> Mellor non
-					\item<3-4> Non é de código libre
-					\item<4> Non respeta completamente o código libre
-				\end{itemize}
-				\item<5-> Alternativas?
-				\begin{itemize}
-					\item<6-> \href{https://gitlab.com}{GitLab}
-					\item<7-> \href{https://codeberg.org}{CodeBerg}
-					\item<8-> \href{https://sr.ht}{SourceHut}, \textit{the hacker's forge}
-				\end{itemize}
-			\end{itemize}
-		
-		\column{0.5\textwidth}
-		\only<1-4>{
-			\begin{figure}
-				\centering
-				\includegraphics[width=0.8\linewidth]{img/logos/github}
-				\label{fig:logo-github}
-			\end{figure}
-		}
-
-		\only<6>{
-			\begin{figure}
-				\centering
-				\includegraphics[width=0.8\linewidth]{img/logos/gitlab}
-				\label{fig:logo-gitlab}
-			\end{figure}
-		}
-
-		\only<7>{
-			\begin{figure}
-				\centering
-				\includegraphics[width=0.8\linewidth]{img/logos/codeberg}
-				\label{fig:logo-codeberg}
-			\end{figure}
-		}
-
-		\only<8>{
-			\begin{figure}
-				\centering
-				\includegraphics[width=0.8\linewidth]{img/logos/sourcehut}
-				\label{fig:logo-sourcehut}
-			\end{figure}
-		}
-		\end{columns}
-	\end{frame}
-	
-\section{Conclusións}
 	\begin{frame}
 		\frametitle{Que facer despois desta charla?}
 		\begin{itemize}
diff --git a/references.bib b/references.bib
index df92379..6c9aee1 100644
--- a/references.bib
+++ b/references.bib
@@ -1,41 +1,27 @@
 @online{gnu_free_sw,
-  author  = {GNU \& FSF},
-  title   = {The Free Software Definition},
-  url     = {https://www.gnu.org/philosophy/free-sw.en.html},
-  urldate = {2025-08-31}
+	author       = {GNU \& FSF},
+	title        = {The Free Software Definition},
+	url          = {https://www.gnu.org/philosophy/free-sw.en.html},
+	urldate      = {2025-08-31}
 }
 
 @online{gnu_open_source,
-  author  = {Richard Stallman (GNU)},
-  title   = {Why Open Source Misses the Point of Free Software},
-  url     = {https://www.gnu.org/philosophy/open-source-misses-the-point.html},
-  urldate = {2025-08-31}
+	author = {Richard Stallman (GNU)},
+	title = {Why Open Source Misses the Point of Free Software},
+	url = {https://www.gnu.org/philosophy/open-source-misses-the-point.html},
+	urldate = {2025-08-31}
 }
 
 @online{open_source_def,
-  author  = {Open Source Initiative},
-  title   = {The Open Source Definition},
-  url     = {https://opensource.org/osd},
-  urldate = {2025-08-31}
+	author = {Open Source Initiative},
+	title = {The Open Source Definition},
+	url = {https://opensource.org/osd},
+	urldate = {2025-08-31}
 }
 
 @online{gnu_linux,
-  author  = {Richard Stallman (GNU)},
-  title   = {Linux and the GNU System},
-  url     = {https://www.gnu.org/gnu/linux-and-gnu.html},
-  urldate = {2025-08-31}
-}
-
-@online{choosealicensecom,
-  author  = {GitHub Inc.},
-  title   = {Choose an open source license},
-  url     = {https://choosealicense.com},
-  urldate = {2025-09-11}
-}
-
-@online{publiccodeeu,
-  author  = {FSFE},
-  title   = {Public Money, Public Code},
-  url     = {https://publiccode.eu/},
-  urldate = {2025-09-14}
+	author = {Richard Stallman (GNU)},
+	title = {Linux and the GNU System},
+	url = {https://www.gnu.org/gnu/linux-and-gnu.html},
+	urldate = {2025-08-31}
 }
\ No newline at end of file