# Proton Drive Backup

> Automated backup to Proton Drive with age-based truncation — sync configs, memory files, content drafts, and media with configurable retention periods. Use when you need privacy-first cloud backup for AI workspaces. Requires Proton Drive desktop app.

- Skill: `knownasnaffy/proton-drive-backup-3` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add knownasnaffy/proton-drive-backup-3`
- Raw SKILL.md: https://api.skillmd.com/api/skills/knownasnaffy/proton-drive-backup-3/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra
- Author: knownasnaffy (https://skillmd.com/u/knownasnaffy)
- Updated: 2026-09-22
- Page: https://skillmd.com/skills/knownasnaffy/proton-drive-backup-3

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# Proton Drive Backup

Privacy-first cloud backup via Proton Drive's local sync folder. Copies workspace files with age-based truncation to keep storage manageable.

## Retention Policy

| Content Type | Retention | Rationale |
|---|---|---|
| Configs (plists, JSON) | Forever | Small, critical |
| Memory files | 60 days | Daily notes age out |
| Content drafts | Forever | Intellectual property |
| Images | 90 days | Large, reproducible |
| Audio | 30 days | Very large, reproducible |
| Video | 60 days | Largest files |
| Docker backups | Keep 3 | Rotated |

## Usage

```bash
bash scripts/backup_to_proton.sh
```

Safe to run multiple times — uses rsync for incremental sync.

## Files

- `scripts/backup_to_proton.sh` — Backup script with configurable paths and retention