Echo Chamber 4 the Totally Cuckoo Mining & CosbyCoin User Group
Bitcoin Blockchain Friday evening December 8th Rotterdam Meetup
Bitcoin Blockchain (UASF, BIP148) Bitcoinference: Bitcoin Fullnode Blockchain4Beginners (SegWit, ASICBOOST, UASF, BIP148), Monero, Sia: decentralized private cloud, Distributed Ledger Technology, Ethereum, Smart & Wise Contracts4Beginners, MimbleWimble Grin, Buzzword Compliancy, Intolerant Minorité & Economic Majority, Skin in the Game, Anti-Fragility, The Flappening Birds and offcourse ... PepeCash/RarePepe!
Entrance is free. Food & drinks at your own expense(!).