.newsbeuter/config has a "browser" command where you can give arbitrary a shell command where %u is the URL, you could give it your own script that matches on t

.newsbeuter/config has a "browser" command where you can give arbitrary a shell command where %u is the URL, you could give it your own script that matches on the URL. For example, mine is 'browser "urxvt -e elinks %u"'.