You need to modify main.odin to adjust the SDK path to your directory. Then it recursively crawls it for any .odin files to parse them and outputs definitions.
unicode/utf8/utf8.odin:383:full_rune_in_bytes :: proc "contextless" (b: []byte) -> bool {
unicode/utf8/utf8.odin:403:full_rune_in_string :: proc "contextless" (s: string) -> bool {
unicode/utf8/utf8string/string.odin:7:String :: struct {