Backup, restore, download and GitHub-sync DeepSeek Harness user data (~/.dsh): /backup, scheduled auto-backup that survives restarts, sha256 checksums, integrity verify, rotation, credential redaction with a local vault (plaintext never leaves the machine

Obsidian 零成本同步：iPhone ↔ Mac，GitHub 自动备份。本地优先 + 长期积累。｜Local First. Zero-cost Obsidian sync across iPhone, Mac & GitHub. Let knowledge grow over time.