Here is what you can expect next week

Speaking about #AI on our #Ruby user group next Monday. Don't forget to join us.

We are #hiring full-time #remote (European timezones) Senior #Ruby Engineer. Our current tech stack is Ruby, #Rails, PostgreSQL, ElasticSearch, GraphQL, Kafka, K8s. Mostly working on majestic monolith, occasionally on one of the smaller services.

I've been working remotely for 15 years. Still gives me joy when I can work from gov office or hotel. Did both today, no regrets. Ready for lovely weekend in the mountains.

It's amazing what you can learn from #LLMs if you ask questions. I asked it to implement an algorithm, it did excellent job. Then I asked which generic libraries could have something similar and that's how I learned about downsampling with #LTTB algorithm. Perfect for my use-case. #AI #VibeCoding

2 pull requests today: -2K, +1K. Good day, I think.

Gemini's deep research is absolutely fantastic. Using it second time and it is a great tool for expanding one's knowledge about certain topics. Feels like learning supercharged.

I think this photo turned out pretty well

As usually feature toggles made the day nice and easy. 5 of them actually. Granular toggles allowed small user testing on production and the big release day was mostly about turning them all on.

The amount of UI sync bugs in Jira is infinite probably. You can't solve it, just keep refreshing...

Started reading 500 pages of "AI-Powered Search". Learning mode activated. This shit is hard.

I actually implemented semantic search for the first time. Nice!

Impossible task for LLMs. Tell it to do something with a text, but without using words from the text. Spoiler: it's gonna use all the words from the text...

Cooking very slowly some strmnl.app updates recently for non-bikers and non-runners. Since Strava does not have stats for those activities, the plan is to show more info about them, when available. I hope this will be a qualit of life improvement for other athletes.

When was the last time you've heard about XML

You are vibe coding, I am vibe riding. We are not the same.

When not using Zeitwerk I still use a normal file organization, generally. There would be a menu.rb defining the module, and require_relatives to load child constants *in the module body*, not before. That way, who creates is well-defined, and everyone else knows it reopens can use that style.

Using HTTP request body for #Rails routing: Slack integration case study. Check it out here: pankowecki.pl/posts/slack-...

As a #Rails community we are missing so much by not coding views just in #ruby... I just implemented Slack views using components on top of slack-ruby-block-kit and it is a delightful experience. The only hope is in @joel.drapper.me and his gems. Congrats to @plane.com for the hire.

Workshops alert 🚨 Join Chris Hasiński at Image Vector Search workshops on April 11 to learn how to build an AI-powered image search engine. Workshops are included in the ticket's price and registration starts on April 2 (number of seats is limited), stay tuned for more info!

i feel compelled to remind everyone that chatgpt/LLMs are functionally the *opposite* of an actual expert. the more your problems are unusual or novel, the more likely LLMS are to be wrong. they are least helpful when it's most important

Wake me up when AI understands time zones related code.

Are you aware that oldest #Ruby and #rubyonrails conference in Poland is happening in 6 weeks? And most of the speakers are already announced, so there is no point to wait with buying a ticket! wrocloverb.com

I am now having weekly random conversations with people about strmnl.app and @usetrmnl.com. What a lovely growing community it is. I can see through comments how much joy this device brings to people and how everyone wants to write just one more plugin for it.

Just bought my @wrocloverb.com ticket. Can wait to see @joel.drapper.me on the scene and hang out with the lovely Polish Ruby community.

Day 2 of using #ClaudeCode. I am becoming a bit lazy with code writing. Created a pull request with 95% of the code written by AI. It definitely does not follow my coding style, but with a bit of guidance it adhers and works lovely. #Claude #LLM

Thoughts on first two hours of using #Claude Code: * It's expensive * It's pretty smart * It does more than I would like, not iterative enough * Pretty good at figuring out the codebase and following existing conventions * It's so slow that it breaks my flow and makes me want context switch #llm

No discussion #ruby.

hey #ruby friends. Is there a way to install bundler in the version specified by Gemfile.lock without me writing code that needs to grep/parse Gemfile.lock? Is there a built-in functionality in rubygems or something?

It's 2025 and most web pages still don't accept HEIC photo file uploads... Why?

I am gonna ask today an engineer about some code they wrote 8 years ago :> Love when that happens, but rarely anyone remembers anything more than the commit message says.

Always happy to see awesome Ruby jobs. As a happy TRMNL user, this might be an excellent opportunity for someone. I hope the business goes to the moon.

I want to write a post about Pitchfork, but before I can get to that I need to share some thoughts. I suspect this one may be more controversial than the optimizing JSON series 😅. byroot.github.io/ruby/perform...

If 3 different AIs give 3 different answers about certain products, the company could rethink whether their documentation is discoverable and understandable, I guess.

Guess what's my first muted word on this platform...

LLMs are great when you are learning to work with a new language. They can be great at translating the usual compilers mambo-jumbo into something meaningful. Also, JS stack has often pretty confusing errors if you ask me. Not just TypeScript, but everything. But I am getting through.

This device (@usetrmnl.com) has rejuvenated my coding joy as now I am coding plugins for it every weekend.

Turns out building a snowman is good for your health

Recently I am digging into 10-7 years old codebase using 5 different Css / Js technologies, multiple different bundling tools. Let's just say I am fighting for sanity

Hard to believe it, but I have my first real-time syncing ToDo Rails application built with @electric-sql.com

Holiday season in progress so after taking a break for @electric-sql.com. I am still cooking for @usetrmnl.com.

I am building a small demo app combining @electric-sql.com , rails and traefik. Should be ready within a week. Star here github.com/paneq/electr... .

While this isn't a primary focus at the moment, I did complete a successful experiment to convert Ruby expressions to the structured Ruby format that can then be parsed into SQL expressions thanks to `RubyVM::AbstractSyntaxTree.of(block)`, e.g.:

A few minutes of coding with @anthropic.com's Claude AI + @cloudflare.social workers and I have the seed for my next @usetrmnl.com plugin. Football match scores, obviously. I am still amazed as how easy it is to build in this setup. Feels like no code environment basically for me.

Rails gave us *CRUD blogs in 15 minutes*. Our aim for @yippee.fun is to demo *Google Docs in 15 minutes*. 🤞

Rendering a map of the latest strava ride on @usetrmnl.com? Why not? Why not! I am having a blast with this little screen.

Ruby only guarantees that any method returns something and that anything is truthy/falsey. This is the same as saying Ruby doesn’t really guarantee anything about anything, which we already knew. But by convention, predicates should return true|false.

I like to use an *exclusive arc* (with a check constraint) over multiple nullable associations rather than type/id-style polymorphic associations. This allows you to use foreign keys and means you can’t just assign anything as the polymorphic attachment. Post#content is either a video or an article.

Tough season for #biking

Having fun prototyping my @usetrmnl.com #Strava screen with @cloudflare.social workers.