# crosspoint-reader/crosspoint-reader

Open-source e-reader firmware

Repository: https://github.com/crosspoint-reader/crosspoint-reader
Canonical: https://ross.abutalabs.com/products/crosspoint-reader
Homepage: https://crosspointreader.com
Language: C
License: MIT
License Family: permissive
Topics: eink, ereader, esp32, firmware, e-reader, epub, epub-reader
Last push: 2026-08-26T16:22:49+00:00

## Health v2 (maintenance only)
Score: 82/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 96, longevity 19
- inputs: {"age_days": 273, "days_push": 7, "days_rel": 26, "gap_med": 2, "n_releases_24m": 28}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 7358, forks 1554 (observed 2026-08-28T04:09:58.447489+00:00)

## What it is
CrossPoint Reader is open-source, community-maintained e-reader firmware for ESP32-C3-based Xteink X3/X4 devices. It provides EPUB rendering, wireless file transfer, OPDS browsing, themes, and extensive customization on e-ink hardware.

## Use cases
- read epubs on an esp32 e-ink device
- replace stock e-reader firmware with open source
- transfer books to my e-reader over wifi
- browse and download books via OPDS
- sync reading progress with KOReader
- install custom fonts and themes on my e-reader
- look up words with a dictionary while reading

## When to choose
- you own an Xteink X3 or X4 e-ink device and want hackable, community-driven firmware
- you want EPUB reading with wireless workflows like WebDAV, OPDS, and OTA updates
- you value open source, localization, and deep customization of your e-reader

## When to avoid
- you have a Kindle, Kobo, or other non-ESP32 e-reader
- you need PDF or DRM-protected book support
- you want a polished commercial product with vendor support

## Facets
- artifact type: application
- maturity: active
- function: embedded, file-system, http-server, websocket, internationalization, theme
- domain: embedded-systems, hardware, cross-platform, files
- platform: embedded, iot
- tags: e-reader, eink, firmware, epub, esp32, ereader, opds, webdav, ota-updates, stardict, localization, web-server

## Member repositories
- crosspoint-reader/crosspoint-reader (main) score 82

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:58.447489+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 2026-08-29T17:38:25.453013+00:00, confidence not recorded.
  - readme: https://github.com/crosspoint-reader/crosspoint-reader (fetched 2026-08-28T04:09:58.447489+00:00, sha dfcf8cde1a42)
  - homepage: https://crosspointreader.com (fetched 2026-08-29T08:33:43.876632+00:00, sha 225ef73f75e2)
- Data as of 2026-08-30T08:39:29.467469+00:00.