The foxhunt-runtime image runs as non-root user 'foxhunt' and uses /bin/sh (dash), not bash. Two issues: 1. &>/dev/null is bash-only — use >/dev/null 2>&1 for POSIX sh 2. Fallback download to /tmp (writable), not /usr/local/bin (root-only) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>