Landon
@thedayisntgray
👨🏾💻Software + AI Engineer - 🏗️: http://dashirb.com | 👨🏾🏫: http://rubyaitraining.com
Enjoy - RAG in less than 100 lines of Ruby code. No frameworks only libraries.

I can't seem to break the habit of typing *clear* in a development terminal. The 10+ years of muscle memory is strong. Modern equivalent of smoking cigarettes and trying to break the habit.
I've written 50 articles about designing AI products as we've built multiple AI-first companies from the ground up over the past 2+ years. have at 'em: lukew.com/ff?tag=ai%20de…
I'm about to abandon my "AI Engineer" title. It was fun y'all. I'm still hacking on AI stuff though. But instead of wearing it on my sleeve I'm injecting it in my bones.
ActivePrompt 🗒️
I'm building a @rails engine for managing prompts that your application uses. There's a CRUD interface for creating the prompts, defining the variables, model parameters, etc. Prompts get versioned. You can load your prompt in your code via a slug. It will also provide…
Structured output just landed in RubyLLM! 🎉 No more parsing JSON and crossing your fingers. Define your schema, get exactly what you asked for. Every time. chat.with_schema(PersonSchema).ask("Generate a person") # => {"name" => "Alice", "age" => 30} rubyllm.com/guides/chat#st…
I went to school here. Dang, I wish I bought that town house.
we have signed a deal for an additional 4.5 gigawatts of capacity with oracle as part of stargate. easy to throw around numbers, but this is a _gigantic_ infrastructure project. some progress photos from abilene:
Question for my Ruby friends 🧼 Is there a repository of Rails, Ruby best practices or RuboCop style guides broken down by various organizations? I’m researching how best practices vary across different companies or teams.
genuinely the coolest blog ever: ampcode.com/how-to-build-a… sending this to an agent to make your first agent is nuts
“Where to get started in Al assisted Rails development in 2025?” Chime in!

"You’ve probably encountered this frustrating scenario: you ask about a specific library or framework, and the AI confidently provides outdated information" zolkos.com/2025/07/21/con…
I've kept coding in Ruby from 2007 and organize almost Ruby community events in Taiwan and we are going to organize this year's @rubyconftw with @coscup together during 9~10 Aug, 2025.rubyconf.tw hope to seeing #rubyfriends weeks after.
A bunch of people have asked me how I was able to vibe code Protocollie in 4 days with Claude Code, so I wrote up some thoughts about the system and how it evolved.
Did some digging into Claude System Prompts today. I feel safer knowing a prompt stands between prompt engineers and nuclear holocaust. Like if this wasn't here could someone theoretically build a weapon? If not why add it? 💣

Just waiting for Justin to post a "Build an Agentic Chat Service in 15 minutes" video 🦾🚀
Had a great consulting call with @kaspth this morning, diving into the Active Agent code! Got some expert feedback that inspired some new issues. 🙌 @rhiannon_io helped document them -- if anyone is looking for ways to contribute! 👇github.com/activeagents/a…