These articles are aimed at a variety of knowledge levels. I post some tutorials and some stuff aimed at fellow programmers.
If you're looking for code I've written, it's on Github (but most of it was made years ago and doesn't reflect my current abilities). The code for this website is here. I also post to dev.to.
Intro to computing¶
Binary explained (a Youtube video, not mine)
Unix and Internet Fundamentals - external. Most of it is not Unix-specific and is pretty well-explained, especially the section on the internet.