For the HTTPS link: https://radiation.party/c/technews, but you should be able to subscribe in various parts of the Fediverse (maybe Mastodon, Lemmy and kbin.social at least? Maybe others? Although the details differ from site to site)
hmm, I haven't really figured out how to follow/find non-kbin content unless it's shoved in front of my face (e.g. your comment here). So, I am able to load your last link, but how exactly would I make it be included in my normal daily scrolling of the kbin front page?