This is a Gentoo overlay for QOwnNotes, the open source (GPL) plain-text file notepad with markdown support and todo list manager for GNU/Linux, Mac OS X and Windows, that (optionally) works together with the notes application of Nextcloud/ownCloud.
Add the QOwnNotes repository with the following command (see eselect-repository).
sudo eselect repository enable qownnotes-overlay
Then you can install QOwnNotes the usual way.
sudo emerge --sync qownnotes-overlay && sudo emerge -av qownnotes
If you run into troubles with libpcre you might have to do a env USE=pcre16 emerge -1 libpcre
.