- ruby-talk - ml.ruby-lang.org

[ruby-talk:444832] [ANN] Pterocos: A free online editor for Ruby, Python, and SQL
by amine kheddache 11 Jun '26

11 Jun '26

Hello everyone, I wanted to share a project I've been working on: Pterocos. It's a free online editor that runs entirely in your browser - no installation, no account required. What you can do with it: - Ruby (newly added) - Python - SQL (SQLite and DuckDB) - Lua - HTML/CSS/JS Why it might be useful for Ruby developers: - Quickly test a Ruby method or algorithm without opening your full IDE - Prototype scripts when away from your main machine - Share runnable Ruby code examples with teammates or learners The editor runs client-side, so your code never leaves your browser. Try it: https://pterocos.eu.org I'd love to get your feedback. What Ruby features or gems would make this more useful for your workflow? Thank you for your time. Best regards, Amine KHD

1 0

[ruby-talk:444831] JRuby 9.4.15.0 released
by Charles Oliver Nutter 08 Jun '26

08 Jun '26

The JRuby community is pleased to announce the release of JRuby 9.4.15.0. - Homepage: https://www.jruby.org/ - Download: https://www.jruby.org/download JRuby 9.4.15.x targets Ruby 3.4 compatibility. Thank you to our contributors this release, you help keep JRuby moving forward! With this release, JRuby 9.4 moves into end-of-life (“EOL”). This means that future releases of 9.4.x will only be provided as needed by commercial JRuby users. Get in touch with us if you require long-term support options for the JRuby 9.4.x series. 38 Issues and PRs resolved for 9.4.15.0 - #8801 ruby/logger gem broken after version 1.6.3 using JRuby on Windows <https://github.com/jruby/jruby/issues/8801> - #8924 const_defined? returns false for External Constants in JRuby 10.0.1.0 and 9.4.14.0 <https://github.com/jruby/jruby/issues/8924> - #8974 Use RuboCop to clean up poms (9.4) <https://github.com/jruby/jruby/pull/8974> - #8990 Launcher defensive fixes 9.4 <https://github.com/jruby/jruby/pull/8990> - #9000 JRuby 9.4.14.0 “wrong number of arguments” when jit.threshold=0 <https://github.com/jruby/jruby/issues/9000> - #9001 Backport indy ruby2_keywords ArgumentError fix <https://github.com/jruby/jruby/pull/9001> - #9002 Backport ArgumentError message update from 2010 <https://github.com/jruby/jruby/pull/9002> - #9012 Rexml security updateUpdate rexml gem to solve CVE-2025-58767 (9.4) <https://github.com/jruby/jruby/pull/9012> - #9030 Official JDK 25 support for JRuby 9.4 <https://github.com/jruby/jruby/pull/9030> - #9031 Don’t restrict object search to modules <https://github.com/jruby/jruby/pull/9031> - #9032 Different arguments for each.map vs each and map alone <https://github.com/jruby/jruby/issues/9032> - #9033 Backport jruby.sh and .jruby.release changes from 10 <https://github.com/jruby/jruby/pull/9033> - #9037 fix: clear code-range when re-using a string buffer (#9035) <https://github.com/jruby/jruby/pull/9037> - #9044 Difference in Float() hex parsing between JRuby and CRuby <https://github.com/jruby/jruby/issues/9044> - #9045 Fixes basic float hex value strings for Kernel#Float <https://github.com/jruby/jruby/pull/9045> - #9054 Migrate .java-version contents to .jruby.release (9.4) <https://github.com/jruby/jruby/pull/9054> - #9104 [9.4] Update jruby-openssl to v0.15.5 to resolve BouncyCastle 1.79 vulnerability (sonatype-2025-001911). <https://github.com/jruby/jruby/issues/9104> - #9105 [9.4] Update jruby-openssl to 0.15.5 <https://github.com/jruby/jruby/pull/9105> - #9128 [9.4] fix(launcher): correct parsing of java release files under Bash/msys2 etc on Windows <https://github.com/jruby/jruby/pull/9128> - #9160 Update strscan to 3.1.7 <https://github.com/jruby/jruby/pull/9160> - #9186 9032 Fix Different arguments for each.map vs each and map alone <https://github.com/jruby/jruby/pull/9186> - #9201 Extract float formatting into a static method (9.4) <https://github.com/jruby/jruby/pull/9201> - #9295 Issue with calling IO.popen(env, cmd, opts) on Windows <https://github.com/jruby/jruby/issues/9295> - #9308 Process.detach raises ArrayIndexOutOfBoundsException if called from a thread that is not the main thread <https://github.com/jruby/jruby/issues/9308> - #9311 Push a frame for thread toplevel <https://github.com/jruby/jruby/pull/9311> - #9347 Use JDK for File#flock on Windows <https://github.com/jruby/jruby/pull/9347> - #9351 Fix non-native IO.popen env + kwargs handling <https://github.com/jruby/jruby/pull/9351> - #9353 Update JNR dependencies <https://github.com/jruby/jruby/pull/9353> - #9377 Checking out aws-sdk-ruby creates a file with binary data. <https://github.com/jruby/jruby/issues/9377> - #9387 [9.4] deps(stdlib): bump erb from 2.2.3 to 4.0.4.1 to resolve CVE-2026-41316 <https://github.com/jruby/jruby/pull/9387> - #9391 [9.4] [deps] bump jruby-openssl to 0.16.0 <https://github.com/jruby/jruby/pull/9391> - #9415 Don’t read or write anything once length is zero <https://github.com/jruby/jruby/pull/9415> - #9443 JRuby 9.4 does not generate bytecode for newer JDK versions <https://github.com/jruby/jruby/issues/9443> - #9444 Allow bytecode version to be open-ended <https://github.com/jruby/jruby/pull/9444> - #9464 [fix] escape shell metachars in chdir: to prevent injection <https://github.com/jruby/jruby/pull/9464> - #9467 [9.4] backport [ji] support java.lang.Throwable#backtrace_locations (#9461) <https://github.com/jruby/jruby/pull/9467> - #9477 Dist verification 9.4 <https://github.com/jruby/jruby/pull/9477> - #9480 [fix] @JRubyMethod error with required>=1 and var-args <https://github.com/jruby/jruby/pull/9480> *Charles Oliver Nutter* *Architect and Technologist* Headius Enterprises https://www.headius.com headius(a)headius.com

1 0

[ruby-talk:444828] Slides for RubyConf Austria 2026 Talk "Frontend Ruby on Rails with Glimmer DSL for Web"
by Andy Maleh 02 Jun '26

02 Jun '26

My talk “Frontend Ruby on Rails with Glimmer DSL for Web” went well at RubyConf Austria 2026. Especially given that after the talk, Chad Fowler (the starter of RubyConf and famous book author of The Passionate Programmer, among other books) told me “good job”, and Obie Fernandez (a famous entrepreneur and book author of The Rails Way, among other books) told me he will try Glimmer DSL for Web because he doesn’t like React.js. Continue reading the blog post: https://andymaleh.blogspot.com/2026/06/rubyconf-austria-2026-frontend-ruby-… Short link for slides: https://bit.ly/glimmer-rubyconf-at-2026 GitHub: https://github.com/AndyObtiva/glimmer-dsl-web

1 0

[ruby-talk:444825] Pattern matching as String, passing patters to functions
by Marcus Poller 01 Jun '26

01 Jun '26

Hi Rubyists, is this the place to ask beginner questions? I am confused about pattern matching. It only seems to work when the key is of type symbol. How would I apply pattern matching to string keys? Example require "yaml" yaml_data=" cards_on_hand: - suite: hearts value: '9' - suite: hearts value: 'king' - suite: diamonds value: 'king' " y=YAML.safe_load(yaml_data, symbolize_names: true) puts y.inspect y[:cards_on_hand].each do |a_card| case a_card in { suite: String => captured_suite, value: 'king' } puts "you have a king on your hand and its suite is #{captured_suite}" else puts "a card of no interest #{a_card.inspect}" end end {cards_on_hand: [{suit: "hearts", value: "9"}, {suit: "hearts", value: "king"}, {suit: "diamonds", value: "king"}]} a card of no interest {suite: "hearts", value: "9"} you have a king on your hand and its suite is hearts you have a king on your hand and its suite is diamonds Second question: Since everything in Ruby is an object, how do I pass patterns into a function? Even more specific, how do I handle capture when passing to a function? Cheers, Marcus

3 2

[ruby-talk:444824] [ANN] FreeBSD AI assistant (robert) released
by Robert 24 May '26

24 May '26

Hey Robert is a console-based mruby application that can read and search FreeBSD man pages with the help of AI. It is distributed as a 2MB binary, you can learn more at https://llmrb.github.io/robert Thanks, Robert

1 0

[ruby-talk:444823] [ANN] mruby-jail released
by Robert 14 May '26

14 May '26

Hi mruby-jail provides mruby bindings for libjail on FreeBSD, and its forks. https://github.com/0x1eef/mruby-jail

1 0

[ruby-talk:444822] [ANN] minitest-autotest 1.2.2 Released
by Ryan Davis 13 May '26

13 May '26

minitest-autotest version 1.2.2 has been released! * home: <https://github.com/seattlerb/minitest-autotest> * rdoc: <http://docs.seattlerb.org/minitest-autotest> autotest is a continous testing facility meant to be used during development. As soon as you save a file, autotest will run the corresponding dependent tests. minitest-autotest is the latest incarnation of the venerable and wise autotest. This time, it talks to minitest via minitest-server. As a result, there is no output parsing. There are no regexps to tweak. There's no cruft or overhead. ## Features/Problems: * Continually and intelligently test only those files you change with autotest. Changes: ### 1.2.2 / 2026-05-13 * 3 bug fixes: * Fix shebang and use require_relative for bin/autotest. * Fixed Autotest.run to process options before path_expander. * MT6: Fixed loading of minitest/server.

1 0

[ruby-talk:444821] [ANN] isolate 4.1.1 Released
by Ryan Davis 11 May '26

11 May '26

isolate version 4.1.1 has been released! * home: <http://github.com/jbarnette/isolate> Isolate is a very simple RubyGems sandbox. It provides a way to express and automatically install your project's Gem dependencies. #### To Install: Changes: ### 4.1.1 / 2026-05-11 * 1 minor enhancement: * Bumped rubygems version to 3.7+. * 2 bug fixes: * Remove mkdir for GEM_HOME. Don't make it if we don't need it. Rubygems can do it. * Removed old rubygems monkeypatch that is gone in 4.

1 0

[ruby-talk:444820] [ANN] mruby-minitest v0.1.0 released
by Robert 09 May '26

09 May '26

Hello mruby-minitest is a minitest-compatible testing framework for mruby. It covers the core minitest API: test classes, assertions, spec DSL, and expectations. It is a port of CRuby's minitest by Ryan Davis. It is *not* an official port. https://github.com/0x1eef/mruby-minitest#readme Robert

1 0

[ruby-talk:444819] [ANN] relay.app v0.6.0 released
by Robert 08 May '26

08 May '26

## Relay Relay is a self-hostable LLM web application that can be extended with your own tools and skills that live in your ${HOME} directory. It is designed to be hackable and extendable. It lets you program AI with code rather than just use it as a tool. ## Install gem install relay.app relay setup relay start ## Learn more https://github.com/llmrb/relay.app#readme Best, Robert

1 0