# Polprzewodnikowy/SummerCart64

SummerCart64 - a fully open source N64 flashcart

Repository: https://github.com/Polprzewodnikowy/SummerCart64
Canonical: https://ross.abutalabs.com/products/summercart64
Homepage: https://summercart64.dev
Language: C
License: GPL-3.0
License Family: copyleft
Topics: n64, flashcart
Last push: 2025-05-11T08:29:57+00:00

## Health v2 (maintenance only)
Score: 43/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 21, release rhythm 40, longevity 100
- inputs: {"age_days": 2161, "days_push": 479, "days_rel": 653, "gap_med": 22, "n_releases_24m": 4}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1129, forks 74 (observed 2026-08-28T04:03:41.979684+00:00)

## What it is
SummerCart64 is a fully open source flashcart for the Nintendo 64 console, combining hardware design files, firmware, and a PC companion app. It supports playing retail and homebrew ROMs from SD card, 64DD emulation, automatic save backup, and rich game development/debugging features.

## Use cases
- play n64 roms from sd card
- develop and test n64 homebrew on real hardware
- emulate 64dd disk games on n64
- debug n64 games over usb
- back up game saves automatically
- build my own n64 flashcart from open source files

## When to choose
- you want a fully open source, feature-complete N64 flashcart
- you are an N64 homebrew developer needing fast USB/SD I/O and debug features
- you want 64DD emulation and automatic save writeback
- you want to tinker with or manufacture the hardware yourself

## When to avoid
- you want a plug-and-play commercial product with support
- you lack electronics knowledge needed for DIY assembly and initial programming
- you need flashcarts for consoles other than the N64

## Facets
- artifact type: application
- maturity: active
- function: developer-tools, embedded, sdk
- domain: gaming-tools, embedded-systems, hardware, developer-tools
- platform: embedded, cross-platform, cli
- tags: n64, flashcart, firmware, retro-gaming, open-source-hardware, homebrew, 64dd-emulation, game-development

## Member repositories
- Polprzewodnikowy/SummerCart64 (main) score 43

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:41.979684+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 2026-08-30T06:38:23.291383+00:00, confidence not recorded.
  - readme: https://github.com/Polprzewodnikowy/SummerCart64 (fetched 2026-08-28T04:03:41.979684+00:00, sha a63e9d006601)
  - homepage: https://summercart64.dev (fetched 2026-08-29T12:42:48.479154+00:00, sha 754bc486e417)
  - site_page: https://summercart64.dev/features.html (fetched 2026-08-29T12:42:48.484180+00:00, sha 13cec34458f9)
  - site_page: https://summercart64.dev/faq.html (fetched 2026-08-29T12:42:48.486756+00:00, sha b94ba303e04d)
- Data as of 2026-08-30T08:39:29.467469+00:00.