Tech blogging isn't about traffic. It's not about other people. It's not about a particular bit of software. It's not about fame or fortune. It's not about recognition. It's not about being the go-to point.
It's all about you. It's about you learning more about the topic you're covering. It's about you practicing writing. It's about improving as a writer. It's about enjoying the whole experience of writing and learning while sharing the experience with a wider audience. Feedback on your content, if you get some, is just another way of learning.
The readers will come. Or they won't.
Write for yourself.