# SciresM/boot9strap

Boot9/Boot11 code execution.

Repository: https://github.com/SciresM/boot9strap
Canonical: https://ross.abutalabs.com/products/boot9strap
Language: C
License: GPL-3.0
License Family: copyleft
Last push: 2025-12-12T18:58:57+00:00

## Health v2 (maintenance only)
Score: 48/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 56, release rhythm 8, longevity 100
- inputs: {"age_days": 3393, "days_push": 264, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1205, forks 73 (observed 2026-08-28T04:03:59.233666+00:00)

## What it is
Boot9strap is a custom firmware bootloader for the Nintendo 3DS that achieves Boot9/Boot11 code execution via a bootrom exploit. It loads a 'boot.firm' payload (such as Luma3DS) from the SD card or CTRNAND at boot time.

## Use cases
- install custom firmware on a Nintendo 3DS
- boot homebrew payloads like Luma3DS on a 3DS
- run code with Boot9/Boot11 privileges on 3DS hardware
- recover a 3DS with a corrupt firmware via CTRNAND fallback boot
- set up a permanent custom firmware chain using SafeB9SInstaller
- diagnose boot failures using LED status codes

## When to choose
- you are modding a Nintendo 3DS or 2DS and need a bootrom-level exploit for persistent custom firmware
- you want to load Luma3DS or another boot.firm payload automatically at power-on
- you need a reliable boot chain with fallback from SD to CTRNAND firmware

## When to avoid
- you are not working with Nintendo 3DS family hardware
- you want a userspace homebrew launcher rather than a low-level bootloader
- you are unwilling to follow careful installation steps, since misuse can brick the console

## Facets
- artifact type: application
- maturity: stable
- function: security, embedded, developer-tools
- domain: security, hardware, developer-tools
- platform: embedded, cross-platform
- tags: nintendo-3ds, custom-firmware, bootloader, bootrom-exploit, homebrew

## Member repositories
- SciresM/boot9strap (main) score 48

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:59.233666+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:19:20.460079+00:00, confidence not recorded.
  - readme: https://github.com/SciresM/boot9strap (fetched 2026-08-28T04:03:59.233666+00:00, sha 66e9e53b5f6b)
- Data as of 2026-08-30T08:39:29.467469+00:00.