Open-source notices

MyMissionLetters uses the following open-source software. The list is maintained alongside the running service and updated when a covered dependency is added, removed, or version-bumped.

libheif-js
Version
1.19.8
Project
github.com/catdad-experiments/libheif-js (an Emscripten distribution of libheif)
License
GNU Lesser General Public License version 3 (LGPL-3.0) — full text
Use in this service
Server-side conversion of iPhone HEIC photos to JPEG, used by the photo, social-media-screenshot, and email-attachment upload paths.
Twemoji
Version
@twemoji/api 17.0.2
Project
github.com/jdecked/twemoji — copyright Twitter, Inc and other contributors
License
Creative Commons Attribution 4.0 International (CC-BY 4.0) — license terms
Use in this service
Unicode emoji in user-generated content (emails, broadcasts, printed books) are replaced with Twemoji SVG renders so emoji display identically across devices and in print.
Contact

Questions about a listed dependency or its license should go to our contact page.