Gossiper: Building for Slack's Hidden Private Layer
How I built Gossiper, a Slack app that uses ephemeral messages to privately gossip about public channel conversations.
Joe Hsu · Personal blog
Notes from the building side of software.
Practical writing on AI products, agent systems, and the decisions that help good ideas ship.
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Notes from the workbench
02
DoDaily: My AI-Powered Personal Knowledge Base
How I built DoDaily, an AI-powered journaling app that turns daily writing into a searchable personal knowledge base.
Read note 03
ClawCon NYC Recap
Notes from ClawCon NYC, a packed night of OpenClaw demos, business use cases, and agent builders.
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AI Tinkerers NYC Hackathon Recap
A short recap of my experience at the AI Tinkerers NYC hackathon with Claude.
Read note 05
Recursive Language Models with ai-rlm
A practical introduction to recursive language models and how ai-rlm uses the AI SDK to build an Agent.
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