Added "Yuzu Custom" as additional "custom" emulator

emu-configs/defaults/retrodeck/helper_files/how-to-install-custom-emulators.txt

@@ -0,0 +1,15 @@
+There is the possibility to provide custom emutlators provided by the user.
+
+At the moment the only one available is Yuzu.
+Create a folder named "yuzu" lowercase and place there your AppImage, so the path should be:
+retrodeck/customs/yuzu/yuzu*.AppImage
+
+WARNINGS on custom emulators:
+- Custom emulators are self managed: means that RetroDECK Team is not supporting nor troubleshooting them.
+- Custom emulators could potentially break other included emulators configs: use them at your own risk.
+- Remember to make the binary executable, otherwise they won't be launched.
+
+Related wiki article can be found here:
+---
+
+The RetroDECK Team

emu-configs/defaults/retrodeck/reference_lists/helper_files_list.cfg

@@ -16,3 +16,6 @@ how-to-install-PCSX2-textures.txt^$texture_packs_folder/PCSX2
 how-to-install-Mupen64Plus-textures.txt^$texture_packs_folder/RetroArch-Mupen64Plus/cache
 how-to-install-Mupen64Plus-textures.txt^$texture_packs_folder/RetroArch-Mupen64Plus/hires_texture
 how-to-install-Duckstation-textures.txt^$texture_packs_folder/Duckstation
+
+# customs
+how-to-install-custom-emulators.txt^$rdhome/customs

es-configs/es_find_rules.xml

@@ -841,6 +841,12 @@
             <entry>~/.local/share/flatpak/exports/bin/org.yuzu_emu.yuzu</entry>
         </rule>
     </emulator>
+    <emulator name="YUZU-CUSTOM">
+        <!-- Nintendo Switch emulator Yuzu Custom provided by the user -->
+        <rule type="staticpath">
+            <entry>~/retrodeck/customs/yuzu/yuzu*.AppImage</entry>
+        </rule>
+    </emulator>
     <emulator name="ZESARUX">
         <!-- Sinclair ZX Spectrum emulator ZEsarUX -->
         <rule type="systempath">

es-configs/es_systems.xml

@@ -1657,6 +1657,7 @@
         <extension>.nca .NCA .nro .NRO .nso .NSO .nsp .NSP .xci .XCI</extension>
         <command label="Yuzu (Standalone)">%INJECT%=%BASENAME%.esprefix %EMULATOR_YUZU% -f -g %ROM%</command>
         <command label="Ryujinx (Standalone)">%EMULATOR_RYUJINX% %ROM%</command>
+        <command label="Yuzu (User provided)">%INJECT%=%BASENAME%.esprefix %EMULATOR_YUZU-CUSTOM% -f -g %ROM%</command>
         <platform>switch</platform>
         <theme>switch</theme>
     </system>

functions/prepare_emulator.sh

@@ -642,6 +642,7 @@ prepare_emulator() {
       dir_prep "$logs_folder/yuzu" "/var/data/yuzu/log"
       dir_prep "$screenshots_folder" "/var/data/yuzu/screenshots"
       dir_prep "$mods_folder/Yuzu" "/var/data/yuzu/load"
+      mkdir -pv "$rdhome/customs/yuzu"
       # removing dead symlinks as they were present in a past version
       if [ -d $bios_folder/switch ]; then
         find $bios_folder/switch -xtype l -exec rm {} \;