---
phase: quick
plan: 260410-d4u
subsystem: sandbox
tags: [bugfix, portability, bwrap]
key-files:
  modified: [claudebox.sh]
decisions: []
metrics:
  duration: 28s
  completed: "2026-04-10"
  tasks_completed: 1
  tasks_total: 1
---

# Quick Task 260410-d4u: Fix /etc/static mount on non-NixOS Summary

Conditional /etc/static bwrap mount using CONDITIONAL_MOUNTS array -- non-NixOS hosts no longer fail on missing path.

## What Changed

Added a `CONDITIONAL_MOUNTS` array that checks for `/etc/static` existence before including it as a bwrap `--ro-bind`. The array is spliced into both the dry-run output path and the exec bwrap call, keeping the two in sync.

## Task Results

| Task | Name | Commit | Status |
|------|------|--------|--------|
| 1 | Conditionally mount /etc/static only when it exists | 97c10f8 | Done |

## Verification

- `bash -n claudebox.sh` passes
- On NixOS (where /etc/static exists): mount is included via CONDITIONAL_MOUNTS array
- On non-NixOS: CONDITIONAL_MOUNTS is empty, mount is skipped entirely
- Dry-run and exec paths both use the same array

## Deviations from Plan

None -- plan executed exactly as written.

## Self-Check: PASSED