Now that Mastodon and the Fediverse are getting a big influx of new users, I thought it would be worthwhile mentioning that you can follow this blog on the Fediverse. Just search for @frederik on your favourite Fediverse server and you should be able to follow this blog.
If you are not a fan of social media, you can subscribe to the RSS feed of this site: https://blog.frehi.be/feed/. You will need an RSS aggregator on your system, such as Thunderbird, NewsFlash (GNOME), Akregator (KDE), Feeder (Android), NetNewsWire (macOS, iOS). There are also web-based solutions available. Web-based feed aggregators which you can install on your own server are TT-RSS, Nextcloud News. Feedly is a popular proprietary web-based solution, but as usual the problem is that this limits your privacy, and makes you depend on a commercial party.