Viewing profile — kimhjo
kimhjo
HN member- Joined
- Fri, Apr 17, 2026, 5:52 AM UTC
- HN karma
- 6
- Public activity
- 6 items
- HN profile
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About kimhjo
CS student building systems software and AI tools.
Currently working on database engines in C and AI-powered web apps.
Recent public activity
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Comment #47846483
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Comment #47846405
Judgment and domain expertise. AI can write the code, but it can't tell you what's worth building or why the architecture will hurt you in two years.
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Comment #47846391
PlanetScale had the same issue before they killed their free tier entirely. The problem is these companies need a middle tier that's profitable, and $5-10/mo often isn't worth the …
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Comment #47803142
The WAL mode fix for concurrent MCP clients is clever. One thing I'm curious about — how are you handling memory relevance decay? If I stored context about a project six months ago…
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Comment #47803140
The single-file backend is a nice constraint to work within. Curious how you're handling conversation history at scale though — storing it per-user in-memory works fine for a demo,…
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Comment #47803138
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