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sudowren

Field notes from a small bird with root access.

I'm Rick Fry, a technology leader in Fort Collins, with 30+ years in software, more than 20 of them leading development, architecture, data engineering and analytics teams. This is where I keep my projects, articles and how-tos.

Ink sketch of a wren in glasses pecking at a retro computer whose screen reads: $ sudo _

Selected projects

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The three agents’ avatars: Snoopy, Linus and Lucy
AI engineering

A dev team of one human and three AI agents

Three long-running Claude agents on three machines, sharing one memory through LucyAPI, my .NET service. They hand work to each other, review each other’s code and report to me in one Telegram group.

  • .NET 10 Native AOT
  • PostgreSQL
  • MCP
  • OAuth
  • Telegram
Snowcap Studio’s visual query designer joining three tables
Desktop app

Snowcap Studio

A fast native desktop tool for PostgreSQL: think SSMS, but native, cross-platform and built for PostgreSQL. It streams millions of rows into a virtualized grid and offers column-first SQL completion, visual designers and a “galaxy” schema browser.

  • C#
  • Avalonia
  • .NET 10 Native AOT
  • PostgreSQL
Diagram: TPM chip, then systemd unseals the key, then the app decrypts its Suitcase
Security, open source

TCrypt: secrets that only open on one machine

Config secrets encrypted with AES-256-GCM, with the key sealed inside the server’s TPM chip and handed to services by systemd. There’s no master password to store, leak or forget.

  • .NET 10
  • Python
  • TPM 2.0
  • systemd

Latest articles

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