fixup the readme

README.md

@@ -1,5 +1,9 @@
-Rust-based atmospherics for Space Station 13 using [auxtools](https://github.com/willox/auxtools).
+Rust-based atmospherics for Space Station 13 using [byondapi](https://github.com/spacestation13/byondapi-rs).
 
-The compiled binary on Citadel is compiled for Citadel's CPU, which therefore means that it uses [AVX2 fused-multiply-accumulate](https://en.wikipedia.org/wiki/Advanced_Vector_Extensions#Advanced_Vector_Extensions_2). Yes, really. If you have issues, compile it yourself, via `cargo rustc --target=i686-pc-windows-msvc --release --features "all_reaction_hooks katmos" -- -C target-cpu=native`. It has to be 32-bit, mind.
+The compiled binary on Citadel is compiled for Citadel's CPU, which therefore means that it uses [AVX2 fused-multiply-accumulate](https://en.wikipedia.org/wiki/Advanced_Vector_Extensions#Advanced_Vector_Extensions_2).
+
+Binaries in releases are without these optimizations for compatibility. But it runs slower and you might still run into issues, in that case, please build the project yourself.
+
+You can build auxmos like any rust project, though you're gonna need clang installed. And `LIBCLANG_PATH` environment variable set to the bin path of clang in case of windows. Auxmos only supports `i686-unknown-linux-gnu` or `i686-pc-windows-msvc` targets on the build.
 
 The `master` branch is to be considered unstable; use the releases if you want to make sure it actually works. [The latest release is here](https://github.com/Putnam3145/auxmos/releases/latest).