I just got a very nice Xeon-powered dedicated server (no more VPS!) from an anonymous donation, so I'm covered for now.
Update: the server is currenly offline for an upgrade

That means I can add Ethereum data from Blockchair, and later Doge too.
I've been playing with an idea: I want to make a graph of funded (potential) ChipMixer chips over the years, with daily data.
Assumptions:
I'll start by looking for addresses that received 0.512
BTC. I'll exclude all addresses that received more than one transaction (ever), and I'll count the
chips from the day they were funded until they day they're emptied. In Bitcoin's early years, before ChipMixer even existed, many potential chips
were emptied the same day again. Those won't be counted.
Problem:
There's a lot of data, and I don't do databases. I was actually running out of disk space to sort the data, so this upgrade came at the right time.