revpdf-bin-4.0.0-2-x86_64.pkg.tar.zst - does not work

pkgname=revpdf-bin
pkgver=4.0.0
pkgrel=3
pkgdesc="The Best Free Offline PDF Editor"
arch=('x86_64' 'aarch64')
url="https://github.com/Pawandeep-prog/revpdf-release"
license=('custom')
depends=('gtk3' 'gcc-libs' 'glibc')
optdepends=('zenity: file picker dialog (fallback, simplest)'
            'xdg-desktop-portal-gtk: native file chooser via XDG portal')
provides=('revpdf')
conflicts=('revpdf')
source_x86_64=("revpdf_editor-${pkgver}-x86_64.AppImage::https://github.com/Pawandeep-prog/revpdf-release/releases/download/v${pkgver}/revpdf_editor-x86_64.AppImage")
source_aarch64=("revpdf_editor-${pkgver}-aarch64.AppImage::https://github.com/Pawandeep-prog/revpdf-release/releases/download/v${pkgver}/revpdf_editor-aarch64.AppImage")
sha256sums_x86_64=('5093767a07dea94d661baa8d1c9344850c83bc6b871f178fcff6a2968ac92145')
sha256sums_aarch64=('9646de92631ae98146b9f215e4c481afc5789592a50c83d6289eee2f718380df')

prepare() {
    cd "${srcdir}"
    chmod +x "revpdf_editor-${pkgver}-${CARCH}.AppImage"
    ./"revpdf_editor-${pkgver}-${CARCH}.AppImage" --appimage-extract
}

package() {
    cd "${srcdir}/squashfs-root"

    install -Dm755 revpdf_editor "${pkgdir}/usr/lib/revpdf/revpdf_editor"
    install -dm755 "${pkgdir}/usr/lib/revpdf/lib"
    cp -a lib/*.so* "${pkgdir}/usr/lib/revpdf/lib/"
    cp -a data "${pkgdir}/usr/lib/revpdf/"

    mkdir -p "${pkgdir}/usr/share/applications"
    sed 's|Exec=revpdf_editor %f|Exec=revpdf %f|' com.revpdf.editor.desktop \
        > "${pkgdir}/usr/share/applications/com.revpdf.editor.desktop"
    chmod 644 "${pkgdir}/usr/share/applications/com.revpdf.editor.desktop"
    install -Dm644 com.revpdf.editor.png "${pkgdir}/usr/share/icons/hicolor/256x256/apps/com.revpdf.editor.png"

    mkdir -p "${pkgdir}/usr/bin"
    cat > "${pkgdir}/usr/bin/revpdf" << 'WRAPPER'
#!/bin/bash
HERE=/usr/lib/revpdf
export LD_LIBRARY_PATH="${HERE}/lib:${LD_LIBRARY_PATH}"
export YAD_OPTIONS="--button=yad-open:0 --button=yad-cancel:1"
exec "${HERE}/revpdf_editor" "$@"
WRAPPER
    chmod 755 "${pkgdir}/usr/bin/revpdf"
}