5 GitHub repos that gained 20,000+ stars combined this week

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Comment ‘GITHUB’ and I’ll DM you install commands and my full notes on all 5 repos.

These 5 repos gained over 20,000 GitHub stars combined this week. Cathryn Lavery’s diagram-design was the fastest riser at 11,325 stars in 7 days, a Claude Code skill that renders 39 editorial diagram types matched to your brand. DHH’s omarchy got an 8M foundation behind it, 8 tech CEOs at 1M each, a week after its 4.0 release shipped with a Claude Code widget in the menu bar. Cactus Compute squeezed a tool-calling model into 14MB that runs agents on a Raspberry Pi. ByteDance open sourced OpenViking, a context database that lets agents browse memory like a filesystem and claims Claude Code recall jumps from 57% to 80%. And NVIDIA’s Switchyard routes easy agent calls to cheap models, cutting task costs 74% in their own eval.

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Key Points

• diagram-design (Cathryn Lavery): Claude Code skill rendering 39 editorial diagram types; +11,325 stars in 7 days.
• omarchy (DHH): 8M foundation, 8 tech CEOs at 1M each; 4.0 shipped with a Claude Code menu-bar widget.
• Cactus Compute: tool-calling model in 14MB that runs agents on a Raspberry Pi.
• OpenViking (ByteDance): agent memory browsed like a filesystem; claims Claude Code recall jumps 57% → 80%.
• Switchyard (NVIDIA): routes easy agent calls to cheap models, cutting task costs 74% in their own eval.
• List gated via comment ‘GITHUB’ → DM.