Exploration, distinct from the correctness work in #67: an optional VHDX-backed Dev Drive (ReFS) as the store location on Windows. What it would buy: Defender performance-mode scanning by default (AV overhead on store writes is a real tax), snapshot/backup/move of the whole store as one file, and a natural size cap. What must be verified first: whether ReFS supports FILE_CASE_SENSITIVE_INFO per-directory (the #67 true-name mechanism assumes NTFS); if it does not, a Dev Drive store would fall back to the case-hack and trade correctness posture for performance. Install-time plumbing (mount at boot) is the other cost. Evaluate when install/perf work comes up; not part of the audit fixes.
Exploration, distinct from the correctness work in #67: an optional VHDX-backed Dev Drive (ReFS) as the store location on Windows. What it would buy: Defender performance-mode scanning by default (AV overhead on store writes is a real tax), snapshot/backup/move of the whole store as one file, and a natural size cap. What must be verified first: whether ReFS supports FILE_CASE_SENSITIVE_INFO per-directory (the #67 true-name mechanism assumes NTFS); if it does not, a Dev Drive store would fall back to the case-hack and trade correctness posture for performance. Install-time plumbing (mount at boot) is the other cost. Evaluate when install/perf work comes up; not part of the audit fixes.