Workaround for ProtonVPN GTK app crashing when launched in non-interactive or "headless" contexts (SSH, RDP, etc).

protonvpn_patch.sh

#!/usr/bin/env bash
set -euo pipefail

FILE="/usr/lib/python3/dist-packages/proton/vpn/app/gtk/services/reconnector/session_monitor.py"

# Require root
if [[ $EUID -ne 0 ]]; then
  echo "Run as root (sudo)." >&2
  exit 1
fi

# Ensure file exists
if [[ ! -f "$FILE" ]]; then
  echo "File not found: $FILE" >&2
  exit 1
fi

# Skip if already patched
if grep -q "#seat_properties = seat_auto_properties_proxy.GetAll(SEAT_INTERFACE)" "$FILE"; then
  echo "Already patched. Nothing to do."
  exit 0
fi

# Apply patch
sed -i \
  '/^[[:space:]]*seat_properties = seat_auto_properties_proxy.GetAll(SEAT_INTERFACE)/{
    s/^\([[:space:]]*\)/\1#/
    a\
        try:\
            seat_properties = seat_auto_properties_proxy.GetAll(SEAT_INTERFACE)\
        except Exception:\
            # no /seat/auto in headless sessions - skip reconnect logic\
            return
  }' \
  "$FILE"

echo "Patch applied successfully."