# kellnr/kellnr

The registry for Rust crates

Repository: https://github.com/kellnr/kellnr
Canonical: https://ross.abutalabs.com/products/kellnr
Homepage: https://kellnr.io
Language: Rust
License: Apache-2.0
License Family: permissive
Topics: crate, crates, registry, rust, rustlang
Last push: 2026-08-29T14:30:37+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 100, release rhythm 99, longevity 77
- inputs: {"age_days": 1088, "days_push": 4, "days_rel": 4, "gap_med": 11.0, "n_releases_24m": 37}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1066, forks 90 (observed 2026-09-01T02:14:03.489436+00:00)

## What it is
Kellnr is a self-hosted, open-source registry for Rust crates, like a private crates.io you run on your own hardware. It supports cargo out of the box, hosts rustdocs, provides a web UI for crate management, and can act as a caching proxy for crates.io.

## Use cases
- host private rust crates for my company
- self-hosted alternative to crates.io
- cache crates.io downloads behind a proxy
- host rust documentation for internal crates
- set up a private cargo registry with docker
- manage crate versions with a web ui
- offline crate registry for air-gapped environments

## When to choose
- you need private Rust crates that cargo can consume without extra tooling
- you want to cache/proxy crates.io to speed up or control dependencies
- you want self-hosted docs.rs-style documentation for your crates
- you need an air-gapped or on-premises crate registry

## When to avoid
- you only publish public open-source crates, where crates.io is the standard
- you need a multi-language package registry (npm, PyPI, etc.) rather than Rust-only
- you don't want to operate any server infrastructure

## Facets
- artifact type: service
- maturity: active
- function: self-hosted, http-server, developer-tools, package-manager
- domain: developer-tools, self-hosted, backend, version-control
- platform: self-hosted, rust
- tags: crate-registry, cargo, rustlang, crates-io-proxy, docs-rs, private-registry, docker, linux, kubernetes, web-server

## Member repositories
- kellnr/kellnr (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-09-01T02:14:03.489436+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 2026-08-30T06:57:47.423836+00:00, confidence not recorded.
  - readme: https://github.com/kellnr/kellnr (fetched 2026-09-01T02:14:03.489436+00:00, sha 3acad7e78928)
  - homepage: https://kellnr.io (fetched 2026-08-29T12:59:21.057404+00:00, sha ca25b07afb9b)
  - registry_crates: https://crates.io/api/v1/crates/kellnr (fetched 2026-08-29T12:59:21.066277+00:00, sha d1ca8970ae7c)
- Data as of 2026-08-30T08:39:29.467469+00:00.