I saw this opening for the first time and was amazed by the position of the white king.
[FEN "?"] [startply "21"] 1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h6 5. g4 Bd7 6. h5 e6 7. f4 c5 8. c3 Nc6 9. Nf3 Qb6 10. Kf2 O-O-O 11. Kg3
In this position, white made one knight move, two king moves, and no moves with the other pieces. Usually, we should castle early and hide the king in a safe corner. In this opening, white does the opposite by moving his king to g3 in the opening stage before developing most of their pieces. Is it really a good idea? Are there any other openings that you develop your king early in the game?