diff --git a/Makefile b/Makefile
index e1b5995..87a1129 100644
--- a/Makefile
+++ b/Makefile
@@ -6,7 +6,7 @@
 #    By: rparodi <rparodi@student.42.fr>            +#+  +:+       +#+         #
 #                                                 +#+#+#+#+#+   +#+            #
 #    Created: 2025/09/18 17:28:18 by rparodi           #+#    #+#              #
-#    Updated: 2025/09/19 16:07:44 by rparodi          ###   ########.fr        #
+#    Updated: 2025/09/27 00:04:52 by rparodi          ###   ########.fr        #
 #                                                                              #
 # **************************************************************************** #
 
@@ -14,6 +14,7 @@
 
 # Name
 NAME = libftprintf.a
+PROJECT = printf
 
 # Commands
 CC ?= clang
@@ -114,6 +115,16 @@ footer:
 		@printf "$(GOLD)                   '\"'   '\"'$(END)\n"
 		@printf '              $(GREY)The compilation is$(END) $(GOLD)finished$(END)\n               $(GREY)Have a good $(END)$(GOLD)correction !$(END)\n'
 
+tmux:
+	@tmux new-session -d -s $(PROJECT)
+	@tmux send-keys -t $(PROJECT):0 'vim' C-m
+	@tmux split-window -h -t $(PROJECT):0
+	@tmux resize-pane -t $(PROJECT):0.0 -x 70
+	@tmux new-window -t $(PROJECT):1 -n 'lazygit'
+	@tmux send-keys -t $(PROJECT):1 'lazygit' C-m
+	@tmux select-window -t $(PROJECT):0
+	@tmux attach-session -t $(PROJECT)
+
 clangd:
 	@printf "CompileFlags:\n" > ./.clangd
 	@printf "  Add:\n" >> ./.clangd
diff --git a/includes/_internal.h b/includes/_internal.h
index 5bae8e1..68445a6 100644
--- a/includes/_internal.h
+++ b/includes/_internal.h
@@ -34,22 +34,85 @@ typedef struct s_format
  */
 size_t	ft_strlen(const char *str);
 
+/**
+ * @brief Function to convert a number to an other base
+ *
+ * @param nbr number to convert
+ * @param base base to convert in
+ * @return the string with the number converted
+ */
 char	*itoa_base(uint64_t nbr, char *base);
 
+/**
+ * @brief Function to handle the flag c in printf's function
+ *
+ * @param args list of arguments
+ * @param fd file descriptor
+ * @return The number of character write in the fd (always 1)
+ */
 int		flag_c(va_list args, int fd);
 
+/**
+ * @brief Function to handle the flag i in printf's function
+ *
+ * @param args list of arguments
+ * @param fd file descriptor
+ * @return The number of character write in the fd
+ */
 int		flag_i(va_list args, int fd);
 
+/**
+ * @brief Function to handle the flag p in printf's function
+ *
+ * @param args list of arguments
+ * @param fd file descriptor
+ * @return The number of character write in the fd
+ */
 int		flag_p(va_list args, int fd);
 
+/**
+ * @brief Function to handle the flag % in printf's function
+ *
+ * @param args list of arguments
+ * @param fd file descriptor
+ * @return The number of character write in the fd (always 1)
+ */
 int		flag_percent(va_list args, int fd);
 
+/**
+ * @brief Function to handle the flag s in printf's function
+ *
+ * @param args list of arguments
+ * @param fd file descriptor
+ * @return The number of character write in the fd (always 1)
+ */
 int		flag_s(va_list args, int fd);
 
+/**
+ * @brief Function to handle the flag u in printf's function
+ *
+ * @param args list of arguments
+ * @param fd file descriptor
+ * @return The number of character write in the fd (always 1)
+ */
 int		flag_u(va_list args, int fd);
 
+/**
+ * @brief Function to handle the flag x in printf's function
+ *
+ * @param args list of arguments
+ * @param fd file descriptor
+ * @return The number of character write in the fd (always 1)
+ */
 int		flag_x(va_list args, int fd);
 
+/**
+ * @brief Function to handle the flag X in printf's function
+ *
+ * @param args list of arguments
+ * @param fd file descriptor
+ * @return The number of character write in the fd (always 1)
+ */
 int		flag_x_maj(va_list args, int fd);
 
 #endif