The next thing to do is to install Leafnode, then download one’s favorite subreddits for offline reading. Too bad trn was never open-sourced, but it’s the Usenet client I know how to use.
trn was the first newsreader I used. I think it was on Ultrix, DEC Unix or Slackware. Googling brought me to this sourceforge project: https://sourceforge.net/p/trn/code/