add a first app

Apps/mycoolapp/app.json

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+{
+  "title": "MyCoolApp",
+  "description": "A cool custom app",
+  "developer": "Me",
+  "image": "linuxserver/jellyfin:latest",
+  "ports": {
+    "8096/tcp": "8096"
+  },
+  "volumes": {
+    "/config": "/mnt/data/jellyfin/config",
+    "/media": "/mnt/media"
+  },
+  "web_ui": "http://[HOST_IP]:[PORT:8096]",
+  "icon": "https://raw.githubusercontent.com/linuxserver/docker-templates/master/linuxserver.io/img/jellyfin-icon.png"
+}

manifest.json

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+{
+  "store": {
+    "name": "MyApps",
+    "apps": [
+      {
+        "id": "mycoolapp",
+        "name": "MyCoolApp",
+        "description": "A cool app",
+        "icon": "./Apps/mycoolapp/icon.png",
+        "app_file": "./Apps/mycoolapp/app.json"
+      }
+    ]
+  }
+}
+