Sunday, April 12, 2026
Hey, I'm Lee. I run Rally, a community for builders in San Francisco. This is the first issue of a weekly update: what's happening in the community, who's building what, and the events worth showing up to this week.
Last Saturday, 30 builders spent three hours at Rally's first hackathon trying to solve for IRL connection. The loudest signal from ideation: pre-event matching. When the same people sat down to build, almost nobody built matching. Most teams independently built retention layers. The stated preference is "help me find my people." The revealed preference is "I already found them. Help me not lose them."
Building in public is important to me, and I'll be sending these updates more regularly along with highlights of cool events happening in the city. If there's something you want to see more of, reply and tell me.
- Lee
Community Spotlight
Paras Savnani
Building tooling to help robotics teams go from raw teleoperation demos to clean training data. Combines open source time-series models + VLMs for sensor and video analysis, with a Claude Code agent interface to curate and query episodes. Founder of Lunaris AI. Consults on agentic AI engineering at Tribe AI.
Coming up at Rally
Builders Night
2026-04-13 · 6:30 PM - 9:00 PM
Monday co-working for AI builders. Two hours of focused build time with a share-back round to close.
Building Agent Architectures: Design Decisions That Matter
2026-04-27 · 7:00 PM - 8:45 PM
A deep dive into the design decisions that shape agent architectures, from tool use patterns to memory systems to orchestration strategies.
Around SF this week
Tuesday, Apr 14, 5 PM - 8:30 PM
Wednesday, Apr 15, 5 PM - 8 PM
Wednesday, Apr 15, 6 PM - 8 PM
Thursday, Apr 16, 5:30 PM - 8 PM
Thursday, Apr 16, 6 PM - 9 PM
Saturday, Apr 18, 4 PM - 6:30 PM
Wednesday, Apr 22, 6 PM - 10 PM
AGI House's new series on the bigger questions around where AI is heading. Provocative talks and real debate, not product demos.