Gentoo installation

$ sudo eselect repository add r7l
$ sudo emerge --sync

Add the following to /etc/portage/package.accept_keywords/obsidian:

app-text/obsidian ~amd64

then, to install:

$ sudo emerge -a app-text/obsidian

It appears that plugins are quite happy via Obsidian’s built-in manager and don’t need to be handled via Portage.