SectorC: A C Compiler in 512 bytes
This reminded me the idea of compilers bootstrapping (<a href="https://news.ycombinator.com/item?id=35714194" rel="nofollow">https://news.ycombinator.com/item?id=35714194</a>). That is, now you can code in SectorC some slightly more advanced version of C capable of compiling TCC (<a href="https://bellard.org/tcc/" rel="nofollow">https://bellard.org/tcc/</a>), and then with TCC you can go forward to GCC and so on.