Building an operating system from scratch is one of the ultimate challenges for a software engineer. Recently, I came across BoltOS (hosted on GitHub at adriantips/boltossource), a fascinating 64-bit higher-half hobby operating system written entirely in C and Assembly. Instead of just recycling legacy tutorials, BoltOS aims for a modern environment—skipping old limitations to support advanced hardware and even running Windows binaries natively. Here is a quick breakdown of what makes this pro...