I am a programmer living in Asturias. I work at 37signals as a Principal Programmer in the Product team.

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Articles I write

You can subscribe to my posts by email or see the full list. The last one:

• Anyone can cook (Jun 12)

And my favorite ones:

• The gift of constraints (Sep 9, 2024)

• The radiating programmer (Nov 20, 2023)

• Difficult and complex (Aug 11, 2023)

• Code I like (V): Active Record, nice and blended (Dec 19, 2022)

• Code I like (IV): Vanilla Rails is Plenty (Nov 8, 2022)

• Aging programmer (Sep 24, 2022)

• Performance in context (May 14, 2022)

• Writing for yourself (Apr 4, 2022)

• Balance (Feb 8, 2022)

• Timeboxing away (Aug 29, 2021)

• Escaping the SPA rabbit hole with modern Rails (Jul 4, 2018)

I am currently writing a series called “Code I like” on Rails patterns and techniques.

Things I do

Some of my open source contributions:

• Turbo 8 morphing. Smoother page refreshes in Turbo using morphing. Learn more.
• Active Record Encryption. Application-level encrypted-attributes for Active Record, introduced in Rails 7. Learn more.
• mass_encryption. Bulk encryption for Rails apps. Learn more.
• console1984. Rails console extension that protects sensitive accesses and makes them auditable.
• audits1984. A simple auditing tool for Console 1984.
• ib_ruby_proxy: Invoke Interactive Brokers API from Ruby.
• impersonator: Ruby library to record and replay object interactions.
• turbolinks_render: Support for using Rails render when responding to ajax requests.

You can check my Github profile.