a55uka/nup

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Very new: it was created yesterday. Wait a little before installing it.
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Last change today.
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No licence: legally you can't reuse the code, unless the README says otherwise.

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What it is

Defines NUP, a clean-room container format for unencrypted Nintendo Switch 1 and 2 game dumps. Stores ExeFS program files and full RomFS trees for base games, updates and add-ons in one compressed file. Includes a Python reference implementation with pack, info, list, extract…

Who it's for

Developers and archivists who work with unencrypted Nintendo Switch game dumps and want a single packaged file format

How to use it

Install

pip install ./tools/nup

From its README. Check it there before running it.

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Help me install and set up a55uka/nup in my project. Follow its README: https://github.com/a55uka/nup. Explain each step and check it is safe before running anything.

Star curve

132From 0 to 132 stars between 1 Nov 2026 and 2 Nov 2026.

On the radar

Best place #89, on 2 Nov 2026. In the top 100 on 1 of the last 16 days.

Its place among the radar's top 100, day by day, with #1 at the top. Gaps are days it was out of the top 100.

Records

Best place on RepoAlerts: #89, on 2 Nov 2026

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