[mackrevinack]

vivalidi is open source https://vivaldi.com/source

you can't contribute to it like you can with something on github, but the source is open none the less

[Macha]

Per their own documentation, this is their patched version of Chromium and not the full browser (notably the UI HTML/JS code is not included): https://help.vivaldi.com/desktop/privacy/is-vivaldi-open-sou...