Refactoring, bug fixes and improved CI w/ cross compiling (#12) #36

Job	Run time
test-cross (x86_64-unknown-linux-musl)	2m 26s
test-wasm32-emscripten (static)	1m 15s
test-native (macos-13)	3m 2s
test-cross (s390x-unknown-linux-gnu)	2m 20s
test-wasm32-emscripten (shared)	1m 49s
test-native (macos-14)	1m 33s
test-cross (aarch64-unknown-linux-musl)	2m 31s
test-native (windows-latest)	2m 22s
test-native (ubuntu-latest)	2m 20s
	19m 38s

Provide feedback