What are you favorite 1-3 products of the past 2-4 years? Main criterion is “exceeded expectations by a significant margin” or “opened up a new dimension” in a domain you were familiar with

(summer of) protocol {support | guild | fellowship} ☀️


replies made me realize that i live in a bubble inside of a bubble inside of a bubble but

1. ledger nano x
2. ethereum proof of stake
3. farcaster

domain i was previously familiar with: tech
new dimension: self custody of my finance and identity