diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
index 136c2bf..390d0bf 100644
--- a/.github/workflows/update.yml
+++ b/.github/workflows/update.yml
@@ -38,7 +38,7 @@ jobs:
     outputs:
       packages: ${{ steps.list.outputs.packages }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
       - id: list
         env:
           PACKAGE: ${{ inputs.package }}
@@ -71,7 +71,7 @@ jobs:
       - name: Install base tooling
         run: pacman -Syu --noconfirm --needed git openssh github-cli jq zstd
 
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v7
 
       - name: Update ${{ matrix.package }}
         env:
diff --git a/README.md b/README.md
index 9b29c8d..db61b13 100644
--- a/README.md
+++ b/README.md
@@ -65,7 +65,7 @@ source in the `PKGBUILD` (and drop the `-bin` suffix), or don't package it.
 | `timetable` | [ostfriese4/untis](https://codeberg.org/ostfriese4/untis) — "Timetable", a GTK4 + LibAdwaita client for WebUntis | *built from source* | [timetable](https://aur.archlinux.org/packages/timetable) |
 | `vacuumtube-bin` | [shy1132/VacuumTube](https://github.com/shy1132/VacuumTube) — YouTube Leanback (TV UI) with built-in adblocker | `.deb` | [vacuumtube-bin](https://aur.archlinux.org/packages/vacuumtube-bin) |
 | `waydroid-helper-bin` | [ayasa520/waydroid-helper](https://github.com/ayasa520/waydroid-helper) — GTK4 GUI for Waydroid configuration and extensions | AppImage | [waydroid-helper-bin](https://aur.archlinux.org/packages/waydroid-helper-bin) |
-| `wiiudownloader-bin` | [Xpl0itU/WiiUDownloader](https://github.com/Xpl0itU/WiiUDownloader) — Wii U title downloader (Go + GTK3) | AppImage | [wiiudownloader-bin](https://aur.archlinux.org/packages/wiiudownloader-bin) |
+| `wiiudownloader-bin` | [Xpl0itU/WiiUDownloader](https://github.com/Xpl0itU/WiiUDownloader) — Wii U title downloader (Go + GTK4) | AppImage | [wiiudownloader-bin](https://aur.archlinux.org/packages/wiiudownloader-bin) |
 | `zapzap-bin` | [rafatosta/zapzap](https://github.com/rafatosta/zapzap) — WhatsApp desktop client (PyQt6 + WebEngine) | wheel | [zapzap-bin](https://aur.archlinux.org/packages/zapzap-bin) |
 
 ## Setup (one-time)
diff --git a/wiiudownloader-bin/.SRCINFO b/wiiudownloader-bin/.SRCINFO
index 3324e1b..b675b51 100644
--- a/wiiudownloader-bin/.SRCINFO
+++ b/wiiudownloader-bin/.SRCINFO
@@ -1,29 +1,18 @@
 pkgbase = wiiudownloader-bin
 	pkgdesc = Download encrypted Wii U files from Nintendo's official servers (upstream AppImage)
-	pkgver = 2.105
+	pkgver = 3.1
 	pkgrel = 1
 	url = https://github.com/Xpl0itU/WiiUDownloader
 	arch = x86_64
 	license = GPL-3.0-or-later
-	depends = glibc
-	depends = libx11
-	depends = libxcb
-	depends = wayland
-	depends = fontconfig
-	depends = freetype2
-	depends = harfbuzz
-	depends = fribidi
-	depends = zlib
-	depends = bzip2
-	depends = expat
-	depends = libgpg-error
 	depends = hicolor-icon-theme
+	depends = sh
 	provides = wiiudownloader
 	conflicts = wiiudownloader
-	noextract = wiiudownloader-bin-2.105.AppImage
+	noextract = wiiudownloader-bin-3.1.AppImage
 	options = !strip
 	options = !debug
-	source = wiiudownloader-bin-2.105.AppImage::https://github.com/Xpl0itU/WiiUDownloader/releases/download/v2.105/WiiUDownloader-Linux-x86_64.AppImage
-	sha256sums = 5e9b6fee20657fd1e3d7034a9f119ee77934b9b6613caf6a3cc8b012dfbc58a2
+	source = wiiudownloader-bin-3.1.AppImage::https://github.com/Xpl0itU/WiiUDownloader/releases/download/v3.1/WiiUDownloader-Linux-x86_64.AppImage
+	sha256sums = 49bfdb7371b650680aeb7cd799942e2802b54cf70d10acfe2cc50074af35ebf0
 
 pkgname = wiiudownloader-bin
diff --git a/wiiudownloader-bin/PKGBUILD b/wiiudownloader-bin/PKGBUILD
index 20f7cab..29c27d8 100644
--- a/wiiudownloader-bin/PKGBUILD
+++ b/wiiudownloader-bin/PKGBUILD
@@ -3,22 +3,21 @@
 # https://github.com/Felitendo/PKGBUILDS
 
 pkgname=wiiudownloader-bin
-pkgver=2.105
+pkgver=3.1
 pkgrel=1
 pkgdesc="Download encrypted Wii U files from Nintendo's official servers (upstream AppImage)"
 arch=('x86_64')
 url="https://github.com/Xpl0itU/WiiUDownloader"
 license=('GPL-3.0-or-later')
-# the AppImage bundles GTK3 and its stack; these are what is left over
-depends=('glibc' 'libx11' 'libxcb' 'wayland' 'fontconfig' 'freetype2'
-         'harfbuzz' 'fribidi' 'zlib' 'bzip2' 'expat' 'libgpg-error'
-         'hicolor-icon-theme')
+# the AppImage is built with sharun and carries GTK4, libadwaita, Mesa and its
+# own glibc and dynamic loader; only the shell that runs its AppRun.sh is left
+depends=('hicolor-icon-theme' 'sh')
 provides=('wiiudownloader')
 conflicts=('wiiudownloader')
 options=('!strip' '!debug')
 source=("${pkgname}-${pkgver}.AppImage::${url}/releases/download/v${pkgver}/WiiUDownloader-Linux-x86_64.AppImage")
 noextract=("${pkgname}-${pkgver}.AppImage")
-sha256sums=('5e9b6fee20657fd1e3d7034a9f119ee77934b9b6613caf6a3cc8b012dfbc58a2')
+sha256sums=('49bfdb7371b650680aeb7cd799942e2802b54cf70d10acfe2cc50074af35ebf0')
 
 prepare() {
   chmod +x "$srcdir/${pkgname}-${pkgver}.AppImage"
@@ -26,7 +25,8 @@ prepare() {
 }
 
 package() {
-  # upstream's AppImage payload, installed unchanged
+  # upstream's AppImage payload, installed unchanged; its self-updater hook
+  # only acts when started from an AppImage ($APPIMAGE), so it stays inert
   install -d "$pkgdir/opt/$pkgname"
   cp -a "$srcdir/squashfs-root/." "$pkgdir/opt/$pkgname/"
   rm -f "$pkgdir/opt/$pkgname/.DirIcon"
@@ -40,10 +40,11 @@ exec /opt/$pkgname/AppRun "\$@"
 EOF
   chmod 755 "$pkgdir/usr/bin/wiiudownloader"
 
-  install -Dm644 "$srcdir/squashfs-root/usr/share/icons/hicolor/512x512/apps/WiiUDownloader.png" \
+  install -Dm644 "$srcdir/squashfs-root/WiiUDownloader.png" \
     "$pkgdir/usr/share/icons/hicolor/512x512/apps/wiiudownloader.png"
   install -Dm644 "$srcdir/squashfs-root/WiiUDownloader.desktop" \
     "$pkgdir/usr/share/applications/wiiudownloader.desktop"
   sed -i -e 's|^Exec=.*|Exec=wiiudownloader|' -e 's|^Icon=.*|Icon=wiiudownloader|' \
+    -e '/^X-AppImage-/d' \
     "$pkgdir/usr/share/applications/wiiudownloader.desktop"
 }
diff --git a/wiiudownloader-bin/pkg.sh b/wiiudownloader-bin/pkg.sh
index c7d0f33..a7ca359 100644
--- a/wiiudownloader-bin/pkg.sh
+++ b/wiiudownloader-bin/pkg.sh
@@ -1,10 +1,14 @@
 # wiiudownloader-bin - WiiUDownloader
-# (https://github.com/Xpl0itU/WiiUDownloader), a Go + GTK3 downloader for
-# Wii U titles from Nintendo's official servers.
+# (https://github.com/Xpl0itU/WiiUDownloader), a Go + GTK4/libadwaita
+# downloader for Wii U titles from Nintendo's official servers.
 #
 # Upstream publishes an AppImage per release, which the PKGBUILD unpacks and
 # installs into /opt - so there is no build step here, only pkgver and the
 # checksum are refreshed on a new version.
+#
+# Since v3.0 the AppImage is built with sharun (pkgforge-dev/Anylinux-AppImages)
+# and bundles everything down to glibc, which is why the PKGBUILD depends on
+# little more than a shell. Icon and desktop entry sit at the top of the image.
 
 UPSTREAM_REPO="Xpl0itU/WiiUDownloader"