# ndless-nspire/Ndless

The TI-Nspire calculator extension for native applications

Repository: https://github.com/ndless-nspire/Ndless
Canonical: https://ross.abutalabs.com/products/ndless
Homepage: http://ndless.me
Language: C
License Family: other
Last push: 2026-07-06T19:02:25+00:00

## Health v2 (maintenance only)
Score: 83/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 91, release rhythm 63, longevity 100
- inputs: {"age_days": 4553, "days_push": 58, "days_rel": 86, "gap_med": 143.0, "n_releases_24m": 3}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1015, forks 123 (observed 2026-08-28T04:03:14.104380+00:00)

## What it is
Ndless is an extension for TI-Nspire graphing calculators that combines an executable loader and an SDK, enabling third-party native C, C++, and assembly applications to run on the device. It includes an installer, runtime utilities, and a development SDK with emulator and GDB support.

## Use cases
- run native apps on a TI-Nspire calculator
- develop C or assembly programs for the TI-Nspire
- install games and emulators on a TI-Nspire CX
- run Python or JavaScript interpreters on a calculator
- build homebrew applications for TI-Nspire CX II
- debug calculator programs with GDB via an emulator

## When to choose
- you want to run or develop native third-party applications on a TI-Nspire calculator
- you need an SDK with ARM C/C++ toolchain and emulator support for Nspire development

## When to avoid
- you use a TI-Nspire OS newer than the supported versions (e.g. beyond 6.4.0.74)
- you want a risk-free setup - installation exploits can reboot-loop or brick the calculator
- you only need standard calculator functionality without native apps

## Facets
- artifact type: library
- maturity: maintenance
- function: sdk, compiler, developer-tools, interpreter
- domain: embedded-systems, developer-tools, hardware, education
- platform: embedded, cpp, c, cross-platform
- tags: ti-nspire, calculator, assembly, arm, homebrew, firmware-loader, graphing-calculator

## Member repositories
- ndless-nspire/Ndless (main) score 83

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:14.104380+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 2026-08-30T07:11:27.363739+00:00, confidence not recorded.
  - readme: https://github.com/ndless-nspire/Ndless (fetched 2026-08-28T04:03:14.104380+00:00, sha ea3c16b76343)
  - homepage: http://ndless.me (fetched 2026-08-29T13:10:38.509794+00:00, sha d82fcf647ff8)
- Data as of 2026-08-30T08:39:29.467469+00:00.