Absolutely - self-hosting something like that is in and of itself a project!
I wouldn’t worry about discoverability - you want to hunt for the job you want, not necessarily wait to be discovered. Once you have a position in your sights, you get to point at your site / projects / git host via everything - your cover letter, resume, business cards, etc.
Having a blog is fantastic. You get to showcase your interests and skills in whatever areas you want, and a good combination of technical capability and enthusiasm will get you in most doors easily.