pub fn main(world: World) -> Void raises [NotFound, TooLarge, Io] {
    let fs: Fs = std.fs.host()
    var file: owned<File> = check std.fs.createOrRaise(fs, ".zero/bench/zero-fs-resource.txt")
    check std.fs.writeAllOrRaise(&mut file, std.mem.span("fs resource payload\n"))
    let size: usize = check std.fs.fileLenOrRaise(&mut file)
    std.fs.close(&mut file)
    var opened: owned<File> = check std.fs.openOrRaise(fs, ".zero/bench/zero-fs-resource.txt")
    var buf: [32]u8 = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
    let read: usize = check std.fs.readOrRaise(&mut opened, buf)
    if size == read && read > 0 {
        check world.out.write("fs resource\n")
    }
}