diff --git a/README.md b/README.md
index b7bf3fe..9fe0107 100644
--- a/README.md
+++ b/README.md
@@ -13,49 +13,30 @@ _Adwaita Template_ is a template application for the [Adwaita package](https://g
 
 ## Installation
 
-### Install the Swift Freedesktop SDK Extension
+### Install the Swift 5 Freedesktop SDK Extension
 
-1. Install `flatpak` and `flatpak-builder` (https://flatpak.org/).
+1. Install `flatpak`.
 2. Add Flathub to Flatpak:
 ```
 flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
 ```
 3. Install the newest version of the Freedesktop SDK:
 ```
-flatpak install org.freedesktop.Sdk
+flatpak install flathub org.freedesktop.Sdk
 ```
 4. Install the LLVM 16 Freedesktop extension:
 ```
-flatpak install org.freedesktop.Sdk.Extension.llvm16/x86_64/23.08
+flatpak install flathub org.freedesktop.Sdk.Extension.llvm16/x86_64/23.08
 ```
 5. Install the GNOME SDK. It's not required for building the Swift Freedesktop SDK extension, but later for building the application:
 ```
-flatpak install org.gnome.Sdk
+flatpak install flathub org.gnome.Sdk
 ```
-6. Download the [Swift Freedesktop SDK extension](https://github.com/AparokshaUI/org.freedesktop.Sdk.Extension.swift) using [this](https://github.com/AparokshaUI/org.freedesktop.Sdk.Extension.swift/archive/refs/heads/main.zip) link.
-7. In a terminal, enter the downloaded directory using `cd`.
-8. Install the Swift Freedesktop SDK extension:
+6. Install the Swift 5 Freedesktop SDK Extension.
 ```
-sudo flatpak-builder build-dir org.freedesktop.Sdk.Extension.swift.json --install --force-clean
+flatpak install flathub org.freedesktop.Sdk.Extension.swift5
 ```
 
-> [!NOTE]  
-> If you get the error:
-> ```
-> bwrap: Can't find source path [path]: Permission denied
-> ```
->
-> Run the following command:
-> ```
-> chmod u+s /usr/bin/bwrap
-> ```
-
-> [!NOTE]
-> Add the `--user` flag to the installation command if you get the error:
-> ```
-> open(O_TMPFILE): Permission denied
-> ```
-
 ### Install Other Tools
 
 The following tools are required or recommended for editing this repository:
@@ -88,6 +69,11 @@ file:///path/to/directory
 5. Edit the app's icons using the previously installed tools according to [this](https://blogs.gnome.org/tbernard/2019/12/30/designing-an-icon-for-your-app/) tutorial.
 6. In GNOME Builder, click on the dropdown next to the hammer and then on `Export`. Wait until the file explorer appears, open the `.flatpak` file and install the app on your device!
 
+### Flatpak SPM Generator
+
+If you want to e.g. publish your app on Flathub and there is no internet connection allowed while running the build commands,
+you can use [this tool](https://github.com/flatpak/flatpak-builder-tools/tree/master/spm) that lets you generate a Flatpak manifest JSON from a Swift package.
+
 ## Thanks
 
 ### Dependencies
diff --git a/io.github.AparokshaUI.AdwaitaTemplate.json b/io.github.AparokshaUI.AdwaitaTemplate.json
index 01e9ecc..804a31c 100644
--- a/io.github.AparokshaUI.AdwaitaTemplate.json
+++ b/io.github.AparokshaUI.AdwaitaTemplate.json
@@ -4,7 +4,7 @@
   "runtime-version": "45",
   "sdk": "org.gnome.Sdk",
   "sdk-extensions": [
-    "org.freedesktop.Sdk.Extension.swift"
+    "org.freedesktop.Sdk.Extension.swift5"
   ],
   "command": "AdwaitaTemplate",
   "finish-args": [
@@ -15,8 +15,8 @@
     "--socket=wayland"
   ],
   "build-options": {
-    "append-path": "/usr/lib/sdk/swift/bin",
-    "prepend-ld-library-path": "/usr/lib/sdk/swift/lib"
+    "append-path": "/usr/lib/sdk/swift5/bin",
+    "prepend-ld-library-path": "/usr/lib/sdk/swift5/lib"
   },
   "cleanup": [
     "/include",
@@ -44,9 +44,7 @@
       ],
       "build-commands": [
         "swift build -c release --static-swift-stdlib",
-        "rm -r -f /app/bin",
-        "mkdir /app/bin",
-        "cp .build/release/AdwaitaTemplate /app/bin",
+        "install -Dm755 .build/release/AdwaitaTemplate /app/bin/AdwaitaTemplate",
         "install -Dm644 data/io.github.AparokshaUI.AdwaitaTemplate.metainfo.xml $DESTDIR/app/share/metainfo/io.github.AparokshaUI.AdwaitaTemplate.metainfo.xml",
         "install -Dm644 data/io.github.AparokshaUI.AdwaitaTemplate.desktop $DESTDIR/app/share/applications/io.github.AparokshaUI.AdwaitaTemplate.desktop",
         "install -Dm644 data/icons/io.github.AparokshaUI.AdwaitaTemplate.svg $DESTDIR/app/share/icons/hicolor/scalable/apps/io.github.AparokshaUI.AdwaitaTemplate.svg",