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#!/usr/bin/env bash
set -euo pipefail
# Hardcoded mirror host for GitHub/API/RAW substitutions
DECKY_MIRROR_HOST="__DECKY_MIRROR_HOST__"
DECKY_PLUGIN_MIRROR_HOST="__DECKY_PLUGIN_MIRROR_HOST__"
DECKY_PLUGIN_TARGET_ID="__DECKY_PLUGIN_ID__"
# Check if Decky Loader is already installed and running on SteamOS
echo "Checking if Decky Loader is already installed and running..."
if systemctl is-active --quiet plugin_loader.service 2>/dev/null; then
echo "Decky Loader (plugin_loader.service) is already running. Skipping Decky Loader installation."
SKIP_DECKY_INSTALL=true
else
echo "Decky Loader is not running or not installed. Proceeding with installation."
SKIP_DECKY_INSTALL=false
fi
# Download the official installer script, rewrite domains to the mirror, then execute.
# This keeps the original installer logic intact while swapping network endpoints.
tmp_script="/tmp/decky_user_install_script.sh"
if [ "$SKIP_DECKY_INSTALL" != true ]; then
if ! curl -fsSL "https://${DECKY_MIRROR_HOST}/SteamDeckHomebrew/decky-installer/releases/latest/download/user_install_script.sh" \
| sed -E \
-e "s#github\.com#${DECKY_MIRROR_HOST}#g" \
-e "s#api\.github\.com#api.${DECKY_MIRROR_HOST}#g" \
-e "s#raw\.githubusercontent\.com/([^/]+)/([^/]+)/([^/]+)/#${DECKY_MIRROR_HOST}/\1/\2/plain/#g" \
> "${tmp_script}"; then
echo "Failed to download or rewrite the official installer script." >&2
exit 1
fi
bash "${tmp_script}"
fi
# Download and verify Decky Loader client (mirror-hosted).
decky_client="/tmp/decky_client.py"
decky_client_checksum="/tmp/decky_client.py.sha256"
# Download the client script
if ! curl -fsSL "https://${DECKY_MIRROR_HOST}/AeroCore-IO/decky-installer/releases/latest/download/decky_client.py" -o "${decky_client}"; then
echo "Failed to download Decky Loader client script." >&2
exit 1
fi
# Download the checksum file
if ! curl -fsSL "https://${DECKY_MIRROR_HOST}/AeroCore-IO/decky-installer/releases/latest/download/decky_client.py.sha256" -o "${decky_client_checksum}"; then
echo "Failed to download checksum file for Decky Loader client." >&2
exit 1
fi
# Verify the checksum
if command -v sha256sum >/dev/null 2>&1; then
if ! (cd /tmp && sha256sum -c decky_client.py.sha256); then
echo "Checksum verification failed for Decky Loader client. File may be compromised." >&2
rm -f "${decky_client}" "${decky_client_checksum}"
exit 1
fi
elif command -v shasum >/dev/null 2>&1; then
if ! (cd /tmp && shasum -a 256 -c decky_client.py.sha256); then
echo "Checksum verification failed for Decky Loader client. File may be compromised." >&2
rm -f "${decky_client}" "${decky_client_checksum}"
exit 1
fi
else
echo "Warning: No checksum tool available (sha256sum or shasum). Skipping integrity verification." >&2
echo "This is a security risk. Consider installing sha256sum or shasum." >&2
fi
# Install the plugin
python3 "${decky_client}" install \
--store-url "https://${DECKY_PLUGIN_MIRROR_HOST}/plugins" \
--target-id "${DECKY_PLUGIN_TARGET_ID}"
# Configure the custom store URL for future use
python3 "${decky_client}" configure-store "https://${DECKY_PLUGIN_MIRROR_HOST}/plugins"
# Clean up
rm -f "${decky_client}" "${decky_client_checksum}"
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