@SudachiTheDev

Sudachi Dev

@SudachiTheDevYokohama, JapanJoined December 2025

Cognitreus - self-hosted, privacy-first, personal memory layer for LLMs

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Software Engineer living in Japan.

I'm contactable at sudachi.the.dev@proton.me

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Sudachi Dev's blogs

Cognitreuscognitreus.hashnode.dev4 posts

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Recently published

SDSudachi Devcognitreus.hashnode.devDec 26, 2025 · 1 min read

Holidays and plans for the new year

So the holidays are upon me, and this will (hopefully!) give me time to step back from the constant pace I have been pushing Cognitreus and re-approach some of the assumptions I have made. So far stripping most of the autonomy from the model and fo...

SDSudachi Devcognitreus.hashnode.devDec 16, 2025 · 4 min read

Cognitreus: Why v0.5 Took Longer Than Planned

I was hoping to publish this release over the weekend, that obviously didn’t happen haha. Not because nothing was working, but because what was working wasn’t yet honest enough to release. Cognitreus is explicitly about trust, grounding, and knowing ...

SDSudachi Devcognitreus.hashnode.devDec 9, 2025 · 6 min read

Where I Finally Landed After Months of Trying to Make LLMs Remember Things

At the start of this whole journey, I naively thought the hard part would be “storing stuff.” Turns out the real difficulty is getting an LLM to use stored information consistently, without guessing, drifting, or confidently inventing memories that n...

SDSudachi Devcognitreus.hashnode.devDec 8, 2025 · 6 min read

Cognitreus - Why did I start this?

What I Actually Wanted LLMs to Do When I first started playing with LLMs, I wasn’t trying to build some grand system to solve world issues. I just wanted help with a bunch of completely normal, practical things: A tool to scan receipts and bank stat...