nostr:npub1l0s7uss5hmjvwmzqyq4klw0ku6g6a6nj9qcxlk9yg8p9rtr9k4esjlpgrv nostr:npub1scrtmdrspxks7h3s0gz45uagynxaz7ueqfex0ynsvpyk7p7se42ql3teus all engineering problems are hard until you retire.