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Engineering in the open

Ryan Duffy

Site reliability engineer who builds AI infrastructure. A global network by day, a self-hosted AI platform by night — and the decisions written down along the way.

428 days building Rootweaver Since

Latest from the journal

The Rootweaver engineer compares differently headed paper forms in a municipal print shop.

Season 5, Episode 7

The Evidence Was There. The Parser Missed It.

A claim ledger used a different source-column heading. The repair had to accept real equivalents and reject misleading tables without weakening the evidence gate.

Read the episode

Latest updates

1 website commit Website · WK·46

1 commit — Merge pull request #42 from rduffyuk/prepare/s5e08-vw2170-20261112

Publication dates and public build notes. Journal entries describe earlier work. “Merged” does not confirm a live deployment.

The project behind the writing

Rootweaver

My independent AI engineering platform. Coding tools, persistent memory, searchable knowledge and code relationships, connected with signed provenance.

I design and operate it with AI-assisted development.