Hamilton Ulmer
@hamiltonulmer
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👁️📈👁️ @motherduck. Building new tools for data exploration and query iteration. Ex @rilldata, @mozilla
Bay Area
Joined January 2009
So thrilled to announce we've released Instant SQL!. It's a new interaction pattern for writing SQL queries that provides realtime result previews and deep query inspection & debugging. Bye bye run button 👋. Truly, literally only possible with DuckDB
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RT @LukeW: If context engineering is the new hotness for engineering, context management is the new UI hotness/challenge for designers. htt….
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What are people doing for fast, local-first search in web apps these days?.
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I could see a pretty sick feature of Claude Code or Cursor being some kind of annotated walkthrough of a branch that explains it. I'm writing hybrid plans for both humans & AI right now, and we're interleaving code examples with prose. literate programming has a bright future!.
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using Claude Code to plan features I've been thinking about for months but haven't gotten around to designing. We collaborate on the big, ambitious version then carve out the v1. These become 2 md files. Will see if having it read both before implementing v1 is useful.
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new hack is to tell claude code to put a tldr at the end, not benefits or whatever nonsense I don't care about.
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RT @duckdb: 📢 DuckLake 0.2 is out! We added new features to the specification and improved support in the DuckDB ducklake extension. See t….
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Looking for a good SF based in-person browser tech focusedm meetup to talk about how we push the browser to the limit at MotherDuck. Any ideas?.
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the problem with spawning subagents to review a detailed plan is that they're also idiots, just like the idiot I generated the plan with in the first place.
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Totally game-changing. I’m so excited for DuckLake. We patched in time travel support for Instant SQL so you can easily explore any snapshot of data!.
MotherDuck now supports DuckLake! 🦆 . New open table format for extreme scale with database-backed metadata. Two options: .🚀 Fully managed .☁️ Bring your own bucket . Ready to dive in (the lake 🥁)? . CREATE DATABASE (TYPE ducklake);.
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Another Tuesday, another successful pair coding session w/ Claude Code and teammates. Last week’s session gets shipped next week, but it’s basically done. This week’s will turn out similarly. We’re accelerating whole parts of the UI roadmap each week while I multitrack other work.
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so cool!. I tried to implement this in canvas for web editors while on parental leave. Was not upset with the result.
Cursor position and color uniforms are now available to custom shaders in Ghostty, enabling cursor animations (and other effects). Video below is a rough demo of something simple. Can't wait to see what the custom shader community does with this. :) Docs:
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going on vacation soon. will probably get to finally building the dataviz system of my dreams.
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Does anyone have a good resource on effective local RAG? I'm thinking about how to set up obsidian to be more easily searchable.
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I just tried this, and wow does it make a difference when I ask Claude Code to give me status updates, PR messages, code comments, etc.!.
Here's my growing list of writing guidelines in my prompts. I feel that the RLHF isn't working well on writing? I have to fight slop aggressively. Rule of thumb: delete 50% of what AI writes because at least that much is low value fluff (but AI is still helpful). 1. Do not.
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RT @andy_matuschak: This is an appreciation thread for EuterPen, a multimodal music notation system by @Vincent_Cavez et al. It aims to sup….
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This Cursor-led feature dev sprint was more than just a quick afternoon prototype; we're probably a few follow-ons from shipping it and maintaining it for years. Having all three of us made a huge difference. And it was fun!.
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Yesterday I sat with a PM & an engineer and built a feature in one afternoon that would have taken 2+ wks of design & impl work. We used Cursor to implement.- the PM came w/ reqs & customer quotes.- I kept the design on the rails.- engineer kept the implementation comprehensible.
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One could easily build a multitrack agent workflow with Cursor, but of course “we shape our tools and our tools shape us”. A CLI lends itself to composability better than an IDE. I think this is why we’re seeing people jumping into Claude Code. Same story, new decade.
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I think I’m one step away from writing evals on my own Claude rules.
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