diff --git a/source/mini/audio/jail_audio.cpp b/source/backends/SDL3/audio.cpp
similarity index 99%
rename from source/mini/audio/jail_audio.cpp
rename to source/backends/SDL3/audio.cpp
index 36f7da6..60d3fcb 100644
--- a/source/mini/audio/jail_audio.cpp
+++ b/source/backends/SDL3/audio.cpp
@@ -1,6 +1,6 @@
-#ifndef JA_USESDLMIXER
-#include "jail_audio.h"
+#if BACKEND == SDL3
 
+#include "backends/backend.h"
 #include "external/stb_vorbis.h"
 #include "other/log.h"
 
@@ -11,7 +11,7 @@
 
 // structs i variables
 // =============================
-namespace jail
+namespace backend
 {
     namespace audio
     {
@@ -83,7 +83,7 @@ namespace jail
 
 // Funcions
 // ==================
-namespace jail
+namespace backend
 {
     namespace audio
     {
diff --git a/source/backends/backend.h b/source/backends/backend.h
index ccf1a2b..fc9d3c7 100644
--- a/source/backends/backend.h
+++ b/source/backends/backend.h
@@ -33,13 +33,6 @@ namespace backend
         void cursor(const bool value);
     }
 
-    namespace audio
-    {
-        void init();
-        void quit();
-        void render();
-    }
-
     namespace input
     {
         void reset();
@@ -74,4 +67,53 @@ namespace backend
             int press();
         }
     }
+
+    namespace audio
+    {
+        void init();
+        void quit();
+
+        namespace music
+        {
+            enum state { invalid, playing, paused, stopped, disabled };
+
+            int load(const char* filename);
+            int load(const uint8_t* buffer, uint32_t length);
+            void play(int mus, int loop = -1);
+            void pause();
+            void resume();
+            void stop();
+            void fadeOut(int milliseconds);
+            state getState();
+            void destroy(int mus);
+            float setVolume(float vol);
+            void setPosition(float value);
+            float getPosition();
+            void enable(bool value);
+            bool isEnabled();
+        }
+
+        namespace sound
+        {
+            int create(uint8_t* buffer, uint32_t length);
+            int load(uint8_t* buffer, uint32_t length);
+            int load(const char* filename);
+            int play(int snd, int loop = 0);
+            int playOnChannel(int snd, int chan, int loop = 0);
+            void destroy(int snd);
+            float setVolume(float vol);
+            void enable(bool value);
+            bool isEnabled();
+
+            namespace channel
+            {
+                enum state { invalid, free, playing, paused, disabled };
+                void pause(int chan);
+                void resume(int chan);
+                void stop(int chan);
+                state getState(int chan);
+            }
+        }
+    }
+
 }
diff --git a/source/mini/audio/audio.cpp b/source/mini/audio/audio.cpp
index 17e5979..5a23d89 100644
--- a/source/mini/audio/audio.cpp
+++ b/source/mini/audio/audio.cpp
@@ -1,5 +1,5 @@
 #include "audio.h"
-#include "jail_audio.h"
+#include "backends/backend.h"
 #include "mini/file/file.h"
 
 namespace mini
@@ -7,18 +7,13 @@ namespace mini
     namespace audio
     {
         int current_music = -1;
-        //#define MAX_SOUNDS 50
-        //JA_Sound_t *sounds[MAX_SOUNDS];
 
         void init() {
-            jail::audio::init();
-            //for (int i=0;i<MAX_SOUNDS;++i) sounds[i] = NULL;
+            backend::audio::init();
         }
 
         void quit() {
-            //if (current_music != NULL) JA_DeleteMusic(current_music);
-            //for (int i=0;i<MAX_SOUNDS;++i) if (sounds[i]!=NULL) JA_DeleteSound(sounds[i]);
-            jail::audio::quit();
+            backend::audio::quit();
         }
 
         namespace music
@@ -26,45 +21,45 @@ namespace mini
             void play(const char *filename, const int loop) {
                 int size;
                 char *buffer = file::getfilebuffer(filename, size);
-                if (current_music != -1) jail::audio::music::destroy(current_music);
-                current_music = jail::audio::music::load((uint8_t*)buffer, size);
-                jail::audio::music::play(current_music, loop);
+                if (current_music != -1) backend::audio::music::destroy(current_music);
+                current_music = backend::audio::music::load((uint8_t*)buffer, size);
+                backend::audio::music::play(current_music, loop);
             }
 
             void pause() {
-                jail::audio::music::pause();
+                backend::audio::music::pause();
             }
 
             void resume() {
-                jail::audio::music::resume();
+                backend::audio::music::resume();
             }
 
             void stop(const int t) {
-                jail::audio::music::stop();
+                backend::audio::music::stop();
             }
 
             namespace pos {
                 void set(float value)
                 {
-                    jail::audio::music::setPosition(value);
+                    backend::audio::music::setPosition(value);
                 }
 
                 float get()
                 {
-                    return jail::audio::music::getPosition();
+                    return backend::audio::music::getPosition();
                 }
             }
 
             namespace enable {
                 void set(const bool value)
                 {
-                    jail::audio::music::enable(value);
+                    backend::audio::music::enable(value);
                     file::setconfigvalue("music", value?"true":"false");
                 }
 
                 const bool get()
                 {
-                    return jail::audio::music::isEnabled();
+                    return backend::audio::music::isEnabled();
                 }
             }
         }
@@ -74,32 +69,32 @@ namespace mini
             int load(const char *filename) {
                 int size;
                 char *buffer = file::getfilebuffer(filename, size);
-                return jail::audio::sound::load((uint8_t*)buffer, size);
+                return backend::audio::sound::load((uint8_t*)buffer, size);
             }
 
             void free(int soundfile) {
-                return jail::audio::sound::destroy(soundfile);
+                return backend::audio::sound::destroy(soundfile);
             }
 
             int play(int soundfile, const int volume) {
                 // [TODO] Ficar el volumen
-                return jail::audio::sound::play(soundfile, 0);
+                return backend::audio::sound::play(soundfile, 0);
             }
 
             void stop(int soundchannel) {
-                return jail::audio::sound::channel::stop(soundchannel);
+                return backend::audio::sound::channel::stop(soundchannel);
             }
 
             namespace enable {
                 void set(const bool value)
                 {
-                    return jail::audio::sound::enable(value);
+                    return backend::audio::sound::enable(value);
                     file::setconfigvalue("sound", value?"true":"false");
                 }
 
                 const bool get()
                 {
-                    return jail::audio::sound::isEnabled();
+                    return backend::audio::sound::isEnabled();
                 }
             }
         }
diff --git a/source/mini/audio/jail_audio.h b/source/mini/audio/jail_audio.h
deleted file mode 100644
index 382cb95..0000000
--- a/source/mini/audio/jail_audio.h
+++ /dev/null
@@ -1,57 +0,0 @@
-#pragma once
-#include <stdint.h>
-
-namespace jail
-{
-    namespace audio
-    {
-        void init(/*const int freq, const SDL_AudioFormat format, const int channels*/);
-        void quit();
-
-        namespace music
-        {
-            //struct JA_Music_t;
-            enum state { invalid, playing, paused, stopped, disabled };
-
-            int load(const char* filename);
-            int load(const uint8_t* buffer, uint32_t length);
-            void play(int mus, int loop = -1);
-            void pause();
-            void resume();
-            void stop();
-            void fadeOut(int milliseconds);
-            state getState();
-            void destroy(int mus);
-            float setVolume(float vol);
-            void setPosition(float value);
-            float getPosition();
-            void enable(bool value);
-            bool isEnabled();
-        }
-
-        namespace sound
-        {
-            //struct JA_Sound_t;
-            int create(uint8_t* buffer, uint32_t length);
-            int load(uint8_t* buffer, uint32_t length);
-            int load(const char* filename);
-            int play(int snd, int loop = 0);
-            int playOnChannel(int snd, int chan, int loop = 0);
-            void destroy(int snd);
-            float setVolume(float vol);
-            void enable(bool value);
-            bool isEnabled();
-
-            namespace channel
-            {
-                enum state { invalid, free, playing, paused, disabled };
-                void pause(int chan);
-                void resume(int chan);
-                void stop(int chan);
-                state getState(int chan);
-            }
-        }
-    }
-}
-
-
diff --git a/source/mini/version.h b/source/mini/version.h
index efebd08..4a8368a 100644
--- a/source/mini/version.h
+++ b/source/mini/version.h
@@ -1,3 +1,3 @@
 #pragma once
 
-#define MINI_VERSION "1.5.8"
+#define MINI_VERSION "1.5.9"
diff --git a/source/mini/win/win.cpp b/source/mini/win/win.cpp
index 02049ac..3e35932 100644
--- a/source/mini/win/win.cpp
+++ b/source/mini/win/win.cpp
@@ -2,7 +2,7 @@
 #include "other/log.h"
 #include "mini/file/file.h"
 #include "mini/shader/shader.h"
-#include <backends/backend.h>
+#include "backends/backend.h"
 
 #include <stdlib.h>