Ebay works like this too. But because sniping is still permitted, I like to bid 'uncommon' amounts, like $3.17, so if someone else tried to bid a max of $3.00 even at the last moment, the bid for the few cents more wins.

  commit ecfd9009-5bae4398b13645e14ec4ce25 (HEAD -> deal-with-snipers)
  Author: sunrunner
  Date:   Thu Jan 22 13:57:34 2026 +0000

      Update BidBot default bid cents amount to be 18 (was 16), to deal with pesky sniping strategies discovered on HN.