Case study

Capybara: reconstructing Sonix hardware for Tamagotchi Paradise firmware

Capybara reconstructs the Sonix SNC73410 hardware environment needed to run Tamagotchi Paradise factory firmware on a computer. Its Rust emulator implements an ARMv7-M core and peripherals modeled from measurement, imports a user-owned 16 MB flash dump and derives the dump's decryption value before booting it.

Targets: Firmware
Category: Independent reconstruction cases
Relationship: Independent reconstruction project
Sources reviewed: 2026-11-06

Stars: 25
Last commit: 2026-08-31
Language: Rust
License (GitHub): GPL-3.0

GitHub data as of 2026-11-09

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Requirements & limits

Prerequisites: A 16 MB flash dump read from the user's own Tamagotchi Paradise console is required.
Prerequisites: Cargo can build the Rust application in release mode.
Testing evidence: Land, Water, Sky and Jade Forest editions are reported tested; White Glacier and Orange Tropical are untested.
License: GPL-3.0-only license.

Cite

BibTeX

@misc{capybara-tamagotchi-paradise-case,
  title = {{Capybara: reconstructing Sonix hardware for Tamagotchi Paradise firmware}},
  howpublished = {\url{https://github.com/infinition/capybara}},
  url = {https://github.com/infinition/capybara},
  urldate = {2026-11-06},
  note = {Awesome REA entry: \url{https://awesomerea.org/resources/capybara-tamagotchi-paradise-case/}}
}

Plain text

Capybara: reconstructing Sonix hardware for Tamagotchi Paradise firmware. https://github.com/infinition/capybara (accessed 2026-11-06). Awesome REA entry: https://awesomerea.org/resources/capybara-tamagotchi-paradise-case/

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About this entry

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Primary sources

README.md GitHub · infinition/capybara · Revision e80354e
Cargo.toml GitHub · infinition/capybara · Revision e80354e