I am really surprised that no-one mentioned https://www.uiua.org/ https://www.uiua.org/ yet. If you like APL/BQN/K/L, look at Uiua! You're going to love it! It'

I am really surprised that no-one mentioned https://www.uiua.org/ https://www.uiua.org/ yet. If you like APL/BQN/K/L, look at Uiua! You're going to love it! It's very ergonomic, and has awesome and fun facilities for audio and video rendering!