Daily DCA and FIFO capital gains tax - a nightmare?

(I'm asking about taxes in USA but this could be relevant to other jurisdictions too)

Most people (I think) are using FIFO method to track capital gains if they sell Bitcoin.

Would this be a real pain in the ass to try and track later if you're doing a high frequency DCA?

If you were buying 50,000 sats a day, for example, then in 15 years you want to sell 2 million sats... You'd need to calculate your individual profit on each 50k sat chunk... Right?

I really like a daily DCA it's fun, but maybe it's not worth the significant accounting headache later?

Curious what y'all think?

Am I missing something or is there an easy software for this as long as you keep your record keeping tight?

PS - yeah I know there's really no difference between DCA frequencies on a long timeframe. It's just fun to get more sats everyday ????