Here's my partial build.zig file of dependency containing the examples folder to build some test artifacts:
const examples_dir_lz = b.path("examples");
const examples_path = examples_dir_lz.getPath2(b, null);
var examples_dir = try std.fs.openDirAbsolute(examples_path, .{ .iterate = true });
var examples_dir_iter = try examples_dir.walk(b.allocator);
defer examples_dir_iter.deinit();
while (try examples_dir_iter.next()) |entry| {
switch (entry.kind) {