If your goal is to cash in on the blog, your best bet aside from ads is to look for sponsorship opportunities. You can look into services that align with your user's interests and contact them to set up affiliate links for you (like how any decently-popular YouTube channel has a sponsored segment).
This can be in the form of an ad in the header/footer of your blog, an ad shown on the side of the screen, or affiliate links you put in your posts. If you're going to casually recommend your affiliates, I think you're legally required to add a disclaimer that it's an ad, lots of blogs do this in a small text at the top of the post.
Taking a quick look at your blog, you can probably start shooting emails to popular vpn providers and ask if they're interested in getting sponsored here.
The project is for making unofficial drivers for Apple's chips, which very few people are trying to do. Without Asahi, you can't run Linux on Macbooks.