# konmik/nucleus

Nucleus is an Android library, which utilizes the Model-View-Presenter pattern to properly connect background tasks with visual parts of an application.

Repository: https://github.com/konmik/nucleus
Canonical: https://ross.abutalabs.com/products/nucleus
Language: Java
License: MIT
License Family: permissive
Last push: 2019-05-09T20:06:48+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 4298, "days_push": 2673, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1950, forks 248 (observed 2026-08-28T04:05:58.145411+00:00)

## What it is
Nucleus is an Android library implementing the Model-View-Presenter pattern to reliably connect background tasks with UI components. It handles presenter persistence across configuration changes and process restarts, integrating with RxJava.

## Use cases
- implement MVP architecture on Android
- survive background tasks across configuration changes
- restart background tasks after process death
- replace AsyncTask and Loader with RxJava presenters
- avoid progress-bar-forever bugs after process restart

## When to choose
- maintaining a legacy Android app already built with Nucleus
- you specifically want MVP with RxJava on Android

## When to avoid
- starting a new Android project - it is deprecated and unmaintained
- you prefer Redux/MVI architectures - the author recommends ReKotlin instead
- you need ongoing support or updates

## Facets
- artifact type: library
- maturity: abandoned
- function: state-management, concurrency
- domain: mobile-development, android-tools
- platform: -
- tags: mvp, presenter, rxjava, android, deprecated

## Member repositories
- konmik/nucleus (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:58.145411+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 2026-08-30T03:06:52.529727+00:00, confidence not recorded.
  - readme: https://github.com/konmik/nucleus (fetched 2026-08-28T04:05:58.145411+00:00, sha 6f16d2f27b24)
- Data as of 2026-08-30T08:39:29.467469+00:00.