Several embedded units applying NetBSD have necessary no added application advancement aside from toolchain and target rehost.[24]??? ??? ?? ?? ??????? ?? ?????? ?? ??? ???, ??? ?? ????? ?? ?????????? ?? ???? ??? ??? ???? ?? ???? ???? ??????? ?? ??? ?? ????? ????? ???? ??? ???? ??? ?????? ??, ?? ????? ????? ?????? ???? ?? ?????? ???????????????????