npx siikafish # ask the fish a yes/no question
npx siikafish "ship on friday?" # ...with the question on screen (optional)
npx siikafish apple banana # spin to pick one of two options
npx siikafish swim # just watch the fish swim forever
By default the fish spins like a coin with real momentum — it whirls, slows under friction, and wobbles to a stop pointing left for YES or right for NO, with the verdict spelled out in big letters on that side, and confetti for a YES.
Pass two arguments and it becomes a duel between them — the first is the left outcome, the second the right. The options stay hidden while it spins; once the fish commits to a side, the winner is revealed in big ASCII art (a block font for short words, a bordered box for longer phrases — picked to fit, with a little per-run variety) in your terminal's own text colour, and confetti rains on whichever side won. The answer is also printed to stdout on exit, so it's scriptable:
[ "$(npx siikafish | tail -1)" = YES ] && echo "doing it"
Press q or Ctrl-C to quit at any time.