Per the article, ONT sells tiny sequencers that all this genre of "Omg I just sequenced my genome" posts use. They've been around for a decade or so. A commercial lab will give you 30x illumina sequencing for maybe 5% of the cost of this post.

As an 'at home' science project? Totally do-able, but very expensive. I did it as part of epidemiological field with a backpack of materials, so you can definitly do it at home.

As a useful genome? Marginal. ONT will need a couple runs to get complete human genome coverage and the substitution error rate is still high compared to short reads. For a fraction of the price and effort you can get your DNA resequenced at 10 times the quality.

I guess if you are super-ultra paranoid you can do it all yourself at home, but honestly. You're not that special, and if someone really actually wanted your genome that bad they'd just take it from a used coffee cup.