.{
    .dependencies = .{
        .@"zig-md4" = .{
            .path = "./lib/zig-md4",
        },
        ...
    },
    ...
}

    const zig_md4_dep = b.dependency("zig-md4", .{});
    exe.root_module.addImport("zig-md4", zig_md4_dep.module("zig-md4"));

const zig_md4 = @import("zig-md4");

const std = @import("std");
const MD4 = @import("zig-md4").MD4;
pub fn main() !void {
    var out: [16]u8 = undefined;
    
    var h = MD4.init(.{});
    h.update("abc");
    h.final(out[0..]);
    
    // output: a448017aaf21d8525fc10ae87aa6729d
    std.debug.print("output: {x}\n", .{out});
}