This just looks like a bundler. The thing about gcc, the name you're aping here, is that it's a <i>collection</i> of <i>compilers</i>. This looks like neither a compiler nor a collection of them.<p>As far as I can tell this seems to be approximately 2,000 lines of JavaScript (half of which is tests) that wires together existing tools in an rather un-novel way. Or, in other words: an ad for "zeit".