FYI my Alice @OpenTimestamps calendar is out of money in its on-chain wallet; I still have funds in its Lightning wallet.
Since fees are ludicrously high right now I'm not going to refill it. If someone really wants it to work, they can send on-chain funds to it: alice.btc.calendar.opentimestamps.org
My Bob calendar still has 118,000 sats in its on-chain wallet, which should be enough for a few more days, and the calendars run by @BullBitcoin_ and @RCasatta have funds too, so timestamps are still being made. Just not quite as often.