# Clickwill: reconstructing iPod library database editing

> Clickwill reconstructs direct editing of iPod classic and iPod nano music libraries in a Swift Mac app. It reads and writes iTunesDB and ArtworkDB on the device, preserves unknown record bytes, handles hash58 signatures and publishes a byte map that distinguishes measured fields from uncertain ones.

- Type: Case study
- Targets: App
- Category: Independent reconstruction cases
- Relationship: Independent reconstruction project
- Sources reviewed: 2026-11-06
- Added to the catalog: 2026-11-06
- Original resource: <https://github.com/jakubwarzecha00/clickwill>
- Primary source: <https://github.com/jakubwarzecha00/clickwill/blob/194b138f0cf3aa0239e5db532814d0bce5438660/docs/byte-map.md>
- Catalog page: <https://awesomerea.org/resources/clickwill-case/>
- Record JSON: <https://awesomerea.org/resources/clickwill-case/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/clickwill-case/index.md)

## Requirements & limits

- **Prerequisites:** macOS 14 or later and an iPod classic or supported iPod nano for normal writing.
- **Prerequisites:** Building from source requires Xcode 27 and XcodeGen.
- **Limits:** iPod nano third- and fourth-generation editing does not add new artwork until their formats are confirmed; other iPods open read-only by default.
- **License:** GPL-3.0 license.

## Primary sources

1. <https://github.com/jakubwarzecha00/clickwill/blob/194b138f0cf3aa0239e5db532814d0bce5438660/docs/byte-map.md>
2. <https://github.com/jakubwarzecha00/clickwill/blob/194b138f0cf3aa0239e5db532814d0bce5438660/README.md>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.