i just shell out the money for a service like koinly.io. Export my transactions from my wallets in Sparrow and import them into Koinly and it does the rest.
Discussion
I do something similar with a comparable service.
I guess my question is: are y'all reorganizing pricepoints for your buys as part of the safe haven declaration, or just planning to get the screws come tax time given that FIFO will be the only option?