Yes. The source is not available publicly. There is a petition for opening the sources here - https://www.change.org/petitions/opera-software-open-sources-of-pr

Yes. The source is not available publicly. There is a petition for opening the sources here - https://www.change.org/petitions/opera-software-open-sources-of-presto-engine https://www.change.org/petitions/opera-software-open-sources... - but I wouldn't hold my breath.