Oh, it looks like my X86-16 boot sector C compiler that I made recently [1]. Writing boot sector games has a nostalgic magic to it, when programming was actually fun and showed off your skills. It's a shame that the AI era has terribly devalued these projects.
Er, what? The article describes a compiler for a not-quite-C programming language which fits entirely in 512B. Your project, if I see this correctly, can optionally produce code meant to execute as boot sector.
Both interesting projects, but other than the words 'boot sector', 'C' and 'compiler', I don't see a similarity.
[1] https://github.com/Mati365/ts-c-compiler