I suppose I would choose Darcs & Pijul for version control systems to bit into Git hegemony (& if you prefer Git hegemony, don’t use proprietary code forges).

Additionally just the general vibes of IRC & XMPP for battle-tested chat applications that are lightweight for clients & servers alike. These are the kinds of tools your next community should be built on if you want to minimize resource usage (data plans, storage capacity, battery, CPU churn).

Claude 3. Most people don't even know what it is, let alone the fact that it's as good and better than GPT4 in some ways.

SSLATT - an open source markerplace for the darket, supports btc/xmr, tor