SINAPTIA

Read the full post here: sinaptia.dev/posts/storing-…

New post! Storing multi-valued enum fields in ActiveRecord Rails' enum DSL is great for single values, but what about multiple? We compared 4 approaches across performance, extensibility, and maintainability to find the best fit.

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New post: Evaluating LLM prompts in Rails. Finding the right model and prompt for your AI feature is harder than it looks. Spreadsheets help, until they don’t. So we did something about it.

Read the post here: sinaptia.dev/posts/ai-agent…

New post: AI agents in Ruby: Why is it so easy? We found two keys to answer this question while building a full-featured coding agent in just 250 lines of Ruby code.

Read the full post: sinaptia.dev/posts/ruby-llm…

New post: RubyLLM::Instrumentation: the foundation for RubyLLM monitoring While working on RubyLLM::Monitoring, we needed a way to instrument all RubyLLM operations. But we wanted to do it without changing RubyLLM. Read along to know how we did it.

Read the full post here: sinaptia.dev/posts/monitori…

When you're using multiple LLM providers, tracking costs manually becomes impossible fast. We needed visibility into our AI spending and LLM performance. Here's the monitoring engine we built for Rails.

Read our recap here: sinaptia.dev/posts/la-plata…

la_plata.rb November meetup! On November 27th, the la_plata.rb community gathered for its first and last meetup of 2025. Observability, AI, and A/B testing. It was a pleasure to have the entire La Plata Ruby community gathered once more. Thanks to everyone who came!

Es mañana! Los invitamos a la primera y última meetup del año de la_plata.rb. Pueden inscribirse acá: eventbrite.com.ar/e/la-platarb-t… Nos vemos ahí!

Read the blog post here: sinaptia.dev/posts/whats-ac…

What's actually slow? A practical guide to Rails performance Learn how to measure and identify slow Rails actions and their components: database queries, view rendering, and API calls.

Se viene la última meetup de RubySur del año! El 13/11 a las 19hs nos vamos a encontrar en Huerta Co-Working (Buenos Aires) para despedir este increíble año de meetups! Toda la info en el flyer y en el sitio de RubySur (ruby.com.ar). Nos vemos!

Read the full post here: sinaptia.dev/posts/rails-vi…

Rails views performance matters: can `render` slow you down? In this post, we'll benchmark and analyze the most used view rendering options, the optimizations Rails provides, and when it makes sense to use each alternative (or not).

Read the post here: sinaptia.dev/posts/ruby-arg…

Another lovely meetup from the Ruby Argentina community in Buenos Aires on September 10th, 2025. This time, about AI Agents and Breaking Monoliths.