Simplified the json file and removed the ppsspp.desktop file

Changed command from ppsspp to PPSSPPSDL
removed libzip
Changed the buildsystem to cmake
Added environment variables for CC and CXX for aarch64
Defined config-opts for aarch64
Removed cleanup and build-commands
Added post-install commands
Removed Scripts

org.ppsspp.PPSSPP.json

@@ -4,7 +4,7 @@
   "runtime": "org.freedesktop.Platform",
   "runtime-version": "20.08",
   "sdk": "org.freedesktop.Sdk",
-  "command": "ppsspp",
+  "command": "PPSSPPSDL",
   "finish-args": [
     "--device=all",
     "--filesystem=host:ro",
@@ -15,44 +15,23 @@
   "modules": [
     "shared-modules/glu/glu-9.json",
     "shared-modules/glew/glew.json",
-    {
-      "name": "libzip",
-      "buildsystem": "cmake-ninja",
-      "config-opts": ["-DCMAKE_BUILD_TYPE=RelWithDebInfo"],
-      "cleanup": [
-        "/bin",
-        "/include",
-        "/lib/pkgconfig",
-        "/share/man"
-      ],
-      "sources": [
-        {
-          "type": "archive",
-          "url": "https://libzip.org/download/libzip-1.7.3.tar.xz",
-          "sha256": "a60473ffdb7b4260c08bfa19c2ccea0438edac11193c3afbbb1f17fbcf6c6132"
-        }
-      ]
-    },
     {
       "name": "ppsspp",
-      "buildsystem": "simple",
+      "buildsystem": "cmake",
       "build-options": {
-        "arch":{
+        "arch": {
           "aarch64": {
-            "env": {"EXTRA_OPTS":"-DUSING_GLES2=ON"}
+            "env": {
+              "CC": "clang",
+              "CXX": "clang++"
+            },
+            "config-opts": ["-DCMAKE_TOOLCHAIN_FILE=cmake/Toolchains/raspberry.armv8.cmake"]
           }
         }
       },
-      "cleanup": [
-        "/share/applications/"
-      ],
-      "build-commands": [
-        "cd ffmpeg && ../ffmpeg-build.sh",
-        "cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo -DCMAKE_INSTALL_PREFIX=${FLATPAK_DEST} ${EXTRA_OPTS} .",
-        "make -j${FLATPAK_BUILDER_N_JOBS} && make install",
-        "ln -s ${FLATPAK_DEST}/bin/PPSSPPSDL ${FLATPAK_DEST}/bin/ppsspp",
-        "install -Dm644 icons/icon-512.svg ${FLATPAK_DEST}/share/icons/hicolor/scalable/apps/${FLATPAK_ID}.svg",
-        "install -Dm644 ppsspp.desktop ${FLATPAK_DEST}/share/applications/${FLATPAK_ID}.desktop",
+      "post-install": [
+        "mv ${FLATPAK_DEST}/share/applications/{PPSSPPSDL,${FLATPAK_ID}}.desktop",
+        "desktop-file-edit --set-name=PPSSPP ${FLATPAK_DEST}/share/applications/${FLATPAK_ID}.desktop",
         "install -Dm644 appdata.xml ${FLATPAK_DEST}/share/appdata/${FLATPAK_ID}.appdata.xml"
       ],
       "sources": [
@@ -61,26 +40,6 @@
           "url": "https://github.com/hrydgard/ppsspp.git",
           "tag": "v1.11.3"
         },
-        {
-          "type": "script",
-          "dest-filename": "ffmpeg-build.sh",
-          "only-arches": ["aarch64"],
-          "commands":[
-            "rm -r linux",
-            "sed -i 's/GENERAL=/GENERAL_NO=/' linux_arm64.sh",
-            "./linux_arm64.sh"
-          ]
-        },
-        {
-          "type": "script",
-          "dest-filename": "ffmpeg-build.sh",
-          "only-arches": ["x86_64"],
-          "commands":["rm -r linux", "./linux_x86-64.sh"]
-        },
-        {
-          "type": "file",
-          "path": "ppsspp.desktop"
-        },
         {
           "type": "file",
           "path": "appdata.xml"

ppsspp.desktop

@@ -1,9 +0,0 @@
-[Desktop Entry]
-Version=1.0
-Type=Application
-Name=PPSSPP
-GenericName=PSP Emulator
-Comment=PlayStation Portable Simulator Suitable for Playing Portably (PPSSPP)
-Exec=ppsspp %f
-Icon=org.ppsspp.PPSSPP
-Categories=Game