Having one blog that covers all of my interests has kept things simple, but the reality is that only the rarest of followers will be interested in both my “personal” posts and my “technical” ones (which are usually incomprehensible to non-nerds). I’m planning to write both types more regularly in the coming months and thought you’d be better served by keeping them separate.
If/when time permits (ha!), I’ll do some design work on both blogs, but for now, they look the same. Which is probably a bit confusing, but I’m sure you’ll cope.