# idno/idno

A social publishing platform.

Repository: https://github.com/idno/idno
Canonical: https://ross.abutalabs.com/products/idno
Homepage: https://withknown.com/opensource
Language: PHP
License: NOASSERTION
License Family: other
Topics: php, social-network, cms, cms-framework, indieweb
Last push: 2026-08-11T16:24:34+00:00

## Health v2 (maintenance only)
Score: 89/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 97, release rhythm 72, longevity 100
- inputs: {"age_days": 4972, "days_push": 22, "days_rel": 185, "gap_med": 15, "n_releases_24m": 2}
- 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 1122, forks 197 (observed 2026-08-28T04:03:39.874832+00:00)

## What it is
Idno (also known as Known) is an open-source social publishing platform written in PHP that lets individuals and groups share stories and media on a site they control. It supports IndieWeb technologies like Webmention and Microformats 2, plus ActivityPub federation, with a plugin and theme system and an internal/external API.

## Use cases
- self-host a personal social publishing site I own
- run a group blog with social networking features
- join the IndieWeb with webmention and microformats support
- federate posts to ActivityPub followers like Mastodon
- syndicate posts to third-party social networks
- build a customizable CMS on a PHP framework with plugins and themes

## When to choose
- you want a self-hosted, IndieWeb-friendly publishing/social platform
- you need ActivityPub federation and Webmention support out of the box
- you want a PHP-based CMS that is easy to extend with plugins and themes

## When to avoid
- you need a large-scale social network with millions of users
- you prefer a static site generator or headless CMS workflow
- you cannot run a PHP web server with MySQL/MongoDB

## Facets
- artifact type: application
- maturity: active
- function: web-framework, templating, plugin-system, api-framework, self-hosted
- domain: social-media, cms, web-development, self-hosted
- platform: php, self-hosted, cross-platform
- tags: indieweb, social-publishing, activitypub, webmention, microformats, known, blogging, federation, publishing, web-server, linux

## Member repositories
- idno/idno (main) score 89

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:39.874832+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 2026-08-30T06:40:55.765452+00:00, confidence not recorded.
  - readme: https://github.com/idno/idno (fetched 2026-08-28T04:03:39.874832+00:00, sha c2934ea806f2)
  - homepage: https://withknown.com/opensource (fetched 2026-08-29T12:44:26.223912+00:00, sha ce89c2fefd64)
  - site_page: http://docs.withknown.com (fetched 2026-08-29T12:44:26.233989+00:00, sha 689a47816413)
  - site_page: http://docs.withknown.com/en/latest/install/requirements (fetched 2026-08-29T12:44:26.236685+00:00, sha 33f1f973a4cb)
- Data as of 2026-08-30T08:39:29.467469+00:00.