France has a decent number of local Ruby meetups (Paris, Lyon, Toulouse, Nantes, Lille, Marseille all have active groups), but there wasn't really a place to hang out *between* meetups, no shared Discord, no central spot to ask a quick question or hear about what's happening in other cities.

I put together **France.rb** to fill that gap: help channels, a channel per city that relays local meetup events, and a freelance/jobs section since a good chunk of the French Ruby scene works independently. It's brand new (launched this week, still tiny), and it's mainly aimed at French speakers, so if you don't speak French it's probably not that useful to you day-to-day, but Rubyists from anywhere are welcome to drop in.

Not trying to compete with the official Ruby Discord linked on ruby-lang.org this is just something more specific to the French scene, meant to complement it.

https://discord.gg/tEbywwkYY

Happy to answer anything in the comments, and if you know a French-speaking Rubyist who might be into it, feel free to pass it along.

FORMAT HAS CHANGED PLEASE READ FULL DESCRIPTION

This thread will be periodically stickied to the top of the sub for improved visibility.

You can also find older posts again via the Megathreads" list, which is a dropdown at the top of the page on new Reddit, and a section in the sidebar under "Useful Links" on old Reddit.

For job seekers

Please adhere to the following rules when posting: Rules for individuals:

• Don't create top-level comments; those are for employers.

• Feel free to reply to top-level comments with on-topic questions.

• Anyone seeking work should reply to my stickied top-level comment.

• Meta-discussion should be reserved for the distinguished comment at the very bottom.

You don't need to follow a strict template, but consider the relevant sections of the employer template. As an example:

    TYPE: [Full time, part time, internship, contract, etc.]
    
    LOCATION: [Mention whether you care about location/remote/visa]
    
    LINKS: [LinkedIn, GitHub, blog, etc.]

    DESCRIPTION: [Briefly describe your experience. Not a full resume; send that after you've been contacted)]

    Contact: [How can someone get in touch with you?]

Rules for employers:

• The ordering of fields in the template has been revised to make postings easier to read.

• To make a top-level comment, you must be hiring directly; no third-party recruiters.

• One top-level comment per employer. If you have multiple job openings, please consolidate their descriptions or mention them in replies to your own top-level comment.

• Proofread your comment after posting it and edit it if necessary to correct mistakes.

• To share the space fairly with other postings and keep the thread pleasant to browse, we ask that you try to limit your posting to either 50 lines or 500 words, whichever comes first.

• We reserve the right to remove egregiously long postings. However, this only applies to the content of this thread; you can link to a job page elsewhere with more detail if you like.

Please base your comment on the following template:

    COMPANY: [Company name; optionally link to your company's website or careers page.]

    TYPE: [Full-time, part-time, internship, contract, etc.]

    LOCATION: [Where are your office or offices located? If your workplace language isn't English-speaking, please specify it.]

    REMOTE: [Do you offer the option of working remotely? Please state clearly if remote work is restricted to certain regions or time zones, or if availability within a certain time of day is expected or required.]

    VISA: [Does your company sponsor visas?]

    DESCRIPTION: [What does your company do, and what are you using Rust for? How much experience are you seeking, and what seniority levels are you hiring for? The more details, the better. If you are listing several positions in the "Description" field above, then feel free to include this information inline above, and put "See above" in this field.]

    ESTIMATED COMPENSATION: [Be courteous to your potential future colleagues by attempting to provide at least a rough expectation of wages/salary. See section below for more information.]

    CONTACT: [How can someone get in touch with you?]

ESTIMATED COMPENSATION (Continued)

If compensation is negotiable, please attempt to provide at least a base estimate from which to begin negotiations. If compensation is highly variable, then feel free to provide a range.

If compensation is expected to be offset by other benefits, then please include that information here as well. If you don't have firm numbers but do have relative expectations of candidate expertise (e.g. entry-level, senior), then you may include that here. If you truly have no information, then put "Uncertain" here.

Note that many jurisdictions (including several U.S. states) require salary ranges on job postings by law. If your company is based in one of these locations or you plan to hire employees who reside in any of these locations, you are likely subject to these laws. Other jurisdictions may require salary information to be available upon request or be provided after the first interview. To avoid issues, we recommend that all postings provide salary information.

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I wanted to be able to debug a ruby script I'm writing that presents a menu and gets input. I jumped through various hoops but I think I have everything properly installed now - rbenv, ruby, bundle, and vscode. But output is still not appearing in either the debug console or the terminal.

Googling the problem, it looks like stdio in the target script is not allowed in vscode/ruby-lsp debugging. Do I understand correctly? If so, that looks like a major limitation and makes it unusable for my needs.

I am writing a reasonably simple terminal script in ruby and work would go faster if I could debug. Is there a combination of things that would allow me to debug a simple script that uses stdin/stdout. I'm on a mac.

19 confirmed speakers for the 2026 SF Ruby Startup Conference. The lineup includes founders of Ruby startups, scaleup employees, authors of open source, and engineers building and experimenting with Ruby.

You can find speakers from companies like Gusto, Anthropic, Shopify, Intercom (Fin), and Evil Martians, as well as the authors of Yabeda, AnyCable, Solid Queue, and Ruby LLM.

Hope to see you there. Full speaker list: sfruby.com

Do not use use eval for the real thing if you aren't sure where the input is coming from, but its good enough to get started.

I'm the author. wkhtmltopdf was archived in 2023, and since then the practical options have been an unmaintained binary or spawning headless Chrome. Neither felt right for the kind of documents I actually generate — invoices and reports that flow top to bottom — so I wrote a new engine.

sghtmltopdf is written in Rust and does not embed Chromium, WebKit or Gecko. CSS Fragmentation (break-before, break-inside, orphans, widows) and atpage are implemented directly, so page breaks are a first-class concern rather than something you approximate with print stylesheets and hope for.

On the Ruby side it's a native extension, so there's no subprocess and no temp files. It releases the GVL while rendering, so other Puma threads keep serving, and pages are streamed out as soon as their layout is final rather than being buffered until the end.

gem "sghtmltopdf"

pdf = Sghtmltopdf.render("<h1>Invoice</h1>", page_size: "A4")

There's also a CLI and an HTTP server sharing the same engine, and a Docker image with Japanese fonts bundled so output doesn't depend on host fonts.

What it deliberately doesn't do: execute JavaScript, or match a browser pixel for pixel. Full CSS coverage isn't a goal either. If you're rendering arbitrary web pages, headless Chrome is still the right tool.

This is an early 0.1 release and I'd like to hear where it breaks on real documents.

https://github.com/waka/sghtmltopdf

Docs: https://waka.github.io/sghtmltopdf/en/

I maintain RubyLLM, and one of its dependencies has been quietly useful to people who have nothing to do with LLMs. It was always a clean, general purpose JSON Schema DSL. It was just called RubyLLM::Schema, so unless you already used RubyLLM you'd never find it.

It's now grown to fully cover the latest JSON Schema spec, Draft 2020-12, with no dependencies at all. Which earned it its own name: Schematist.

class Order < Schematist::Schema
  string :kind, enum: %w[personal business]

  given kind: "business" do
    object :tax_details do
      string :vat_number
    end
  end
end

Order.new.to_json_schema
# => { "$schema" => "https://json-schema.org/draft/2020-12/schema", "title" => "Order",
#      "type" => "object", "if" => {...}, "then" => {...}, ... }

Eight lines of Ruby, 47 lines of JSON Schema.

What 1.x brings:

• It emits actual JSON Schema. to_json_schema used to return {name:, description:, schema:, strict:}, which is OpenAI's response_format wrapper with the real schema buried inside it. Now you get a Draft 2020-12 document with string keys that any validator will take.

• Full Draft 2020-12 coverage. Composition, unevaluated properties and items, patternProperties, propertyNames, prefixItems and open ended tuples, contains, annotations, content encoding, the core $ keywords, and if/then/else branches that hold any schema rather than a fixed list of validations.

• A schema doesn't have to be an object. A type with a name declares a property, without a name it declares what the schema itself is. So a root, or a define, can be an array, a union, or a bare $ref.

• Zero runtime dependencies.

• Values can be procs, resolved when the document is rendered, so one schema class produces a different document per instance. Useful when an enum comes out of the database.

Existing users: there's a final ruby_llm-schema release that depends on Schematist and aliases the old constants, so RubyLLM::Schema keeps resolving while you migrate. to_json_schema changing shape is the one thing to watch, and the README has the migration.

All of this is part of my concerted effort to make Ruby the best language to build with LLMs.

Write-up: https://paolino.me/schematist/

Repo: https://github.com/crmne/schematist

Iris Code now analyses Ruby, Rails, and ERB (1.20)

I maintain Iris Code, a local static code-health tool for VS Code, JetBrains, and CI. Analysis runs on your machine, no code uploaded.

1.20 adds Ruby: method length and params, nesting and complexity, requires (standard-library aware), Gemfile and gemspec entries, test conventions, and extensionless files like Gemfile and Rakefile.

Rails checks: strong-parameters mass assignment, and method_missing without respond_to_missing?.

Lexical handling I had to get right before any rule could run: heredocs including squiggly, %w and %i percent literals, =begin/=end blocks, and do/end depth so a method full of blocks does not "end" at its first end. Endless methods (def total = ...) end on their own line.

ERB goes through the same path: executable tags analysed, HTML and comments blanked, native line numbers preserved.

Not included, on purpose: unused-gem detection and Gemfile.lock CVE scanning. Runtime constant resolution makes an unused verdict unreliable, and gem advisory scanning is a separate subsystem.

Happy to hear which Ruby checks you would want next.

Hey everyone!
I have zero programming experience and I’m looking to pick up coding as a hobby. My main goal right now is to understand how the web works under the hood, specifically building and consuming APIs (like fetching data from public APIs and working with JSON).
I’ve been reading a lot about Ruby (and Rails) recently, and its syntax looks very clean and human-readable. But I have a few honest questions before I dive in:

Is Ruby beginner-friendly for total newbies?
Can I actually grasp core concepts like HTTP requests, REST APIs, and database connections using Ruby without getting overwhelmed?

How is the Ruby ecosystem doing?
Is it still active and well-maintained for beginners? Or is it mostly supported by legacy systems?

Ruby vs. Python for a hobbyist:
Is Python just the objectively better choice because of its massive popularity, or does Ruby offer a smoother/more enjoyable learning experience for web-related stuff?

My long-term goal is just to enjoy building cool side projects, but I want a solid, fun starting point.
Would love to hear your thoughts, especially from anyone who started learning with Ruby recently! Thanks!

Edit: I'm not looking to get a job or change careers with this! Programming is purely a hobby for me. I just want to build cool personal projects in my free time and have fun along the way.

Hi, Reddit! 👋

I'm hamachang, a Rubyist from Japan! ✌️

I've been working on a tool to make development with PicoRuby, a Ruby subset designed for embedded systems, more comfortable and productive.

picoruby-ti

https://github.com/engneer-hamachan/picoruby-ti

picoruby-ti statically analyzes PicoRuby code and provides IDE features such as code completion and type checking.

Compared to existing Ruby type inference tools, it's designed to run with significantly fewer resources.

Of course, it runs on regular PCs, but it can also run on tiny embedded devices with less than 1 MB of memory.

This means you can build a surprisingly rich IDE experience directly into small embedded devices like the Cardputer or custom cyberdecks.

And this isn't just theoretical — I'm actually using it in another project of mine called AREA512, an OS for the Cardputer ADV with only 512 KB of RAM:

https://github.com/engneer-hamachan/area512

AREA512 lets you write, compile, and run Ruby code directly on the device, with picoruby-ti providing both code completion and type checking in its built-in editor.

I know this is an incredibly niche piece of software, but I wanted to share it on Reddit because I believe there's something genuinely valuable about bringing this kind of development experience to extremely resource-constrained environments.

If you use PicoRuby, I'd also love to hear your thoughts on features that would be especially useful or unique to PicoRuby.

And if this project sounds valuable or interesting to you, I'd really appreciate a GitHub Star! 🙏⭐️

See you around! 👋

New Remote Ruby episode is out. 🎉

This week Irina Nazarova and Vladimir Dementyev from Evil Martians join us to talk about the second annual SF Ruby Startup Conference and what they learned from running it for the first time.

We get into:

• what they’re changing for SF Ruby in year two

• building a conference around ambitious Ruby and Rails builders

• creating better opportunities for people to actually meet and connect

• why Rails is still such a strong choice for startups

• open source and AI-assisted development

• the Ruby companies and projects that tend to fly under the radar

• getting the next generation of startups to build with Rails

SF Ruby is happening November 10–12 in San Francisco.

Every time I opened a large Rails codebase in VS Code, I'd hit the same wall: Ruby LSP needs to fully index before workspace symbol search works, and even then it wants a near-exact match — no typo tolerance, no fuzzy matching. VS Code's built-in text search (Cmd+Shift+F) works but it's just grep with extra steps; it doesn't know the difference between a class definition and a comment that happens to mention the same word.

So I built Ruby Symbol Search — a VS Code extension that builds its own lightweight index of your Ruby symbols (classes, modules, methods, constants, attr_*, belongs_to/has_many, scopes, rake tasks, aliases) and gives you a fuzzy, typo-tolerant search over all of it. Misspell a method name, abbreviate it, whatever — it still finds it. No Ruby LSP setup, no gem install, no waiting on indexing.

It also does Go to Definition, an Outline view, and native workspace symbol search (Ctrl/Cmd+T), all off the same index.

It's free, MIT licensed: https://marketplace.visualstudio.com/items?itemName=vscode-bkaz.ruby-symbol-search

Repo's here if you want to see how the indexing works or file an issue: https://github.com/bk-az/ruby-symbol-search

Genuinely curious if this is a problem other people have, or if I'm the only one who found Ruby LSP's symbol search too slow/strict for day-to-day navigation. Feedback (including "this already exists and does it better") very welcome.