The Bathroom That
Started Everything.

A $33,000 quote, six thousand dollars of research, and a knowledge problem that LLMs finally solved.

A few years ago I bought a 1970s house that needed work. Bathroom hadn't been touched in decades. First contractor quote: thirty-three thousand dollars.

I didn't accept it.

What research actually looks like

Instead I started digging. Contractors. Materials. Methods. Alternatives. Every time I found something worth keeping, I forwarded it to myself. A link. An article. A product spec.

Weeks of that. Hundreds of emails.

The bathroom got done for six thousand dollars. Came out great.

But then I was left staring at an inbox full of forwarded links with no real way to use what I'd built. The knowledge was there. The structure wasn't. And the next time I needed it — to tackle the windows, the insulation, anything else on that house — I'd be starting over.

The problem I actually wanted to solve

What I wanted was a place where the research didn't disappear. Something that would parse the content, categorize it, and let me search it later. An app I could just email to.

That's a reasonable thing to want. And for a long time, nothing really solved it.

Then LLMs arrived and the problem got more interesting. It wasn't just about storing what I found anymore. It was about being able to have a conversation with it. To bring past thinking into today's work. To ask a question and get an answer that actually knew my history — what I'd researched, what I'd decided, what I'd learned the hard way.

What CapsuleBase is

CapsuleBase started as that problem. Not as a product idea. As a thing I actually needed, in a real house, with a real bathroom, and a quote that was fair, but I wasn't going to accept.

It saves your AI conversations locally. One-click Chrome extension. Hybrid text and semantic search — so you can find what you meant, not just what you typed. And an MCP server (coming on the next release) that connects your knowledge base to Claude Desktop, so Claude searches your history before it answers you. Without you having to ask.

No cloud. No subscription. No account required. Local database. Local AI search, on your own machine. Your data stays yours.

Why local first

I've been building software for thirty years. Most of that for small businesses who needed tools that actually worked — without a monthly bill and a vendor who could change the terms whenever they felt like it.

Local first isn't a limitation. It's a deliberate choice.

All that bathroom research had value because I owned it. The knowledge was mine — even if I couldn't use it well yet. CapsuleBase is that same idea applied to every conversation you have with an AI.

Your thinking shouldn't be held hostage by a SaaS platform. The research you did, the decisions you worked through, the solutions you found — those belong to you. Not to whoever's servers you happened to store them on.

That's the problem it solves. Every AI session starts fresh. Everything you worked through last week is gone unless you remember to go find it. CapsuleBase gives it somewhere to live.