Install lsfg-vk on Linux systems with an alternative version of Lossless Scaling.

lsfg-vk.sh

#!/bin/bash

# Install lsfg-vk on Linux systems with an alternative version of Lossless Scaling, without the need to purchase it.
# Supports every Linux x86_64 machine

DOWNLOAD_URL="https://github.com/PancakeTAS/lsfg-vk/releases/download/v1.0.0/lsfg-vk-1.0.0.x86_64.tar.zst"
TEMP_FILE="/tmp/lsfg_install.tar.zst"
INSTALL_DIR="/"

# Install LSFG-VK Release
if [ -f /etc/os-release ]; then
    . /etc/os-release
    if [[ "$ID" == "ubuntu" || "$ID" == "debian" || "$ID_LIKE" == *"debian"* ]]; then
        sudo apt-get update
        sudo apt-get install -y wget zstd qt6-qpa-plugins libqt6quick6 qml6-module-qtquick-controls qml6-module-qtquick-layouts qml6-module-qtquick-window qml6-module-qtquick-dialogs qml6-module-qtqml-workerscript qml6-module-qtquick-templates
    elif [[ "$ID" == "fedora" || "$ID" == "nobara" || "$ID_LIKE" == *"fedora"* ]]; then
        sudo dnf install -y wget zstd qt6-qtdeclarative qt6-qtbase
    elif [[ "$ID" == "arch" || "$ID_LIKE" == *"arch"* ]]; then
        sudo pacman -Sy --noconfirm wget zstd qt6-declarative qt6-base
    else
        echo "Cannot install dependencies out of the box, handle these by youself (mostly qt6 stuff and wget)"
    fi
else
    echo "Cannot detect OS information, skipping dependencies installation..."
fi
wget -O "$TEMP_FILE" "$DOWNLOAD_URL"
sudo tar --use-compress-program=unzstd -xvf "$TEMP_FILE" -C "$INSTALL_DIR"
sudo chmod 755 /usr/bin/lsfg-vk-ui

# Download original Lossless.dll
# VirusTotal analysis for this file: https://www.virustotal.com/gui/file/d8bde39e48f7ea12ad3e709354d3c321d3e470ea4db617e3fc64bf0becb3cd43/details
# SHA256: d8bde39e48f7ea12ad3e709354d3c321d3e470ea4db617e3fc64bf0becb3cd43
wget -O "$HOME/.local/usr/lib/Lossless.dll" "https://files.catbox.moe/ppy9g5.dll"

# Create an uninstall script
cat <<EOF | sudo tee "/usr/uninstall-lsfg.sh" > /dev/null
#!/bin/bash
sudo rm -f "/.PKGINFO"
sudo rm -f "/usr/lib/liblsfg-vk.so"
sudo rm -f "/usr/bin/lsfg-vk-ui"
sudo rm -f "/usr/share/vulkan/implicit_layer.d/VkLayer_LS_frame_generation.json"
sudo rm -f "/usr/share/applications/lsfg-vk-ui.desktop"
sudo rm -f "/usr/share/icons/hicolor/256x256/apps/gay.pancake.lsfg-vk-ui.png"
sudo rm -f "$HOME/.local/usr/lib/Lossless.dll" 
sudo rm -f "\$0"
echo "Uninstalled LSFG-VK"
EOF

sudo chmod 755 "/usr/uninstall-lsfg.sh"

# Patch VkLayer_LS_frame_generation.json for proper locate "liblsfg-vk.so"
sudo sed -i "s|\"library_path\": \"liblsfg-vk.so\"|\"library_path\": \"/usr/lib/liblsfg-vk.so\"|" "/usr/share/vulkan/implicit_layer.d/VkLayer_LS_frame_generation.json"

# Patch user LSFG-VK config to locate "Lossless.dll"
mkdir -p "$HOME/.config/lsfg-vk"
cat > "$HOME/.config/lsfg-vk/conf.toml" <<EOF
version = 1

[global]
dll = "$HOME/.local/usr/lib/Lossless.dll"

[[game]]
exe = "games"
multiplier = 3
flow_scale = 1.0
performance_mode = true
hdr_mode = false
experimental_present_mode = "fifo"
EOF

# Refresh launcher icons to get lsfg-vk gui
sudo update-desktop-database /usr/share/applications

echo "Installation finished successfully"
echo "When launch LSFG-VK ensure 'Lossless.dll' is set to '~/.local/usr/lib/Lossless.dll'."
echo "If you want to uninstall you can run '/usr/uninstall-lsfg.sh'"

Run with one command.

curl -fsSL https://gist.githubusercontent.com/nukhes/ecc665c139dba17271dba195d4785e91/raw/ | sh