# expo/fyi

Little bits of information that you may find useful when interacting with Expo tools and service. Append the markdown filename to https://expo.fyi/ to get a quick link to it.

Repository: https://github.com/expo/fyi
Canonical: https://ross.abutalabs.com/products/fyi
Language: Shell
License Family: other
Topics: expo, troubleshooting
Last push: 2026-07-17T18:30:44+00:00

## Health v2 (maintenance only)
Score: 74/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 93, release rhythm 35, longevity 100
- inputs: {"age_days": 2361, "days_push": 47, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1085, forks 442 (observed 2026-08-28T04:03:31.991159+00:00)

## What it is
A repository of short markdown notes ('FYIs') about Expo tools and services, each accessible via a short expo.fyi link that redirects to the file on GitHub. It serves as a lightweight, shareable knowledge base for troubleshooting and terminology explanations.

## Use cases
- share a quick link explaining a concept like bundle identifier
- troubleshoot expo cli issues
- look up short explanations of expo terminology
- create lightweight docs without a full docs page
- deploy a custom fyi shortener on my own domain

## When to choose
- you use Expo or React Native tooling and need quick contextual explanations
- you want friction-free shareable links to persistent notes
- you want to fork and self-host a similar shortener service

## When to avoid
- you need comprehensive official documentation
- you are not working with the Expo ecosystem
- you need versioned or structured documentation

## Facets
- artifact type: learning-resource
- maturity: active
- function: documentation, developer-tools
- domain: developer-tools, documentation, mobile-development
- platform: cross-platform
- tags: expo, knowledge-base, url-shortener, markdown-notes, troubleshooting, web-server

## Member repositories
- expo/fyi (main) score 74

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:31.991159+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 2026-08-30T06:49:48.441624+00:00, confidence not recorded.
  - readme: https://github.com/expo/fyi (fetched 2026-08-28T04:03:31.991159+00:00, sha 0d8123a142c1)
- Data as of 2026-08-30T08:39:29.467469+00:00.