Hi, I'm Peter 👋

I have authored and/or currently maintain hundreds of open source libraries, including many you might use (as a developer or a consumer of the internet). Around half a percent of the RubyGems downloaded every day are ones I maintain.

GitHub's dependabot-core test runner has been migrated to use my re-architected turbo_tests2. If you use rspec you owe it to yourself to try it out! Parallelized tests with buffered, clean, safe, configurable test output.

🍁 I recently worked on the Go project for dependency license scanning Apache SkyWalking Eyes, where I integrated Bundler and gemspec (Ruby) compatibility, added ASF Category A and B license checks, FSF Free/Libre checks, and OSI Approved checks (all configurable). Learn how to use it as a GitHub Action in your project.

Most of my open source work happens in these organizations:

I maintain the following RubyGems:

• appraisal-rb / appraisal2 -
• Dynamoid / dynamoid -
• galtzo-floss / flag_shih_tzu -
• galtzo-floss / sanitize_email -
• galtzo-floss / turbo_tests2 -
• kettle-dev / kettle-dev -
• structuredmerge / ruby / tree_haver -
• structuredmerge / ruby / ast-merge -
• omniauth / omniauth-jwt -
• omniauth / omniauth-jwt2 -
• omniauth / omniauth-identity -
• omniauth / omniauth-ldap -
• rdp / os -
• ruby-oauth / anonymous_loader -
• ruby-oauth / auth-sanitizer -
• ruby-oauth / oauth -
• ruby-oauth / oauth2 -
• ruby-oauth / oauth2-mcp -
• ruby-oauth / oauth-tty -
• ruby-oauth / snaky_hash -
• ruby-oauth / version_gem -
• ruby-oauth / warden_oauth -
• ruby-openid / omniauth-openid -
• ruby-openid / rack-openid -
• ruby-openid / ruby-openid -
• many ast-parsing, benchmarking, rails, resque, rspec, rubocop plugins & more... (in details below)

inherit_gem:
  rubocop-lts: rubocop-lts.yml # for ruby + rspec

TargetRubyVersion

I'm attempting to document all of the logos for the FLOSS/FOSS/OSS projects I'm either involved in, or have need to render somewhere, with their attendant licenses and copyrights, here: logos.galtzo.com. It has been a multi-year effort hunting down the original creators for some of these logos, and documenting the conditions under which they can be used. I'd love to hear if this is useful in your projects!

I was laid off in a March 2025 RIF, and am looking for my next sponsor and my next role.

Want to chat about open source, or any of my projects? Join my FLOSS discord.

Or join the Ruby Friends Squad on Daily.dev

Want to pay me for work? I'm available!

Thanks to all my sponsors across any of the donation platforms! Special thanks to my biggest sponsor HealthSherpa!

• List is updated frequently by my pet robot: @autobolt

• 🗓️ 2026-09-09T05:21:27Z | rubocop-ruby3_1 (3.0.7) | 🦾 Configure RuboCop + a bevy of friends to gradually lint Ruby 3.1 code

• 🗓️ 2026-09-09T05:20:45Z | rubocop-ruby3_2 (3.0.8) | 🦾 Configure RuboCop + a bevy of friends to gradually lint Ruby 3.2 code

• 🗓️ 2026-09-09T05:02:23Z | rubocop-ruby1_9 (3.0.7) | 🦾 Configure RuboCop + a bevy of friends to gradually lint Ruby 1.9 code

• 🗓️ 2026-09-09T05:02:20Z | rubocop-ruby2_5 (3.0.7) | 🦾 Configure RuboCop + a bevy of friends to gradually lint Ruby 2.5 code

• 🗓️ 2026-09-09T05:02:19Z | rubocop-ruby2_2 (3.0.7) | 🦾 Configure RuboCop + a bevy of friends to gradually lint Ruby 2.2 code

• 🗓️ 2026-09-09T05:02:18Z | rubocop-ruby2_0 (3.0.7) | 🦾 Configure RuboCop + a bevy of friends to gradually lint Ruby 2.0 code

• 🗓️ 2026-09-09T05:02:16Z | rubocop-ruby2_4 (3.0.7) | 🦾 Configure RuboCop + a bevy of friends to gradually lint Ruby 2.4 code

• 🗓️ 2026-09-09T05:02:15Z | rubocop-ruby2_1 (3.0.7) | 🦾 Configure RuboCop + a bevy of friends to gradually lint Ruby 2.1 code

• 🗓️ 2026-09-09T05:02:14Z | rubocop-ruby2_7 (3.0.7) | 🦾 Configure RuboCop + a bevy of friends to gradually lint Ruby 2.7 code

• 🗓️ 2026-09-09T05:02:11Z | rubocop-ruby1_8 (2.0.7) | 🦾 Configure RuboCop + a bevy of friends to gradually lint Ruby 1.8 code

• 🗓️ 2026-09-09T05:02:09Z | rubocop-ruby2_3 (3.0.7) | 🦾 Configure RuboCop + a bevy of friends to gradually lint Ruby 2.3 code

• 🗓️ 2026-09-09T05:02:07Z | rubocop-ruby3_0 (3.0.7) | 🦾 Configure RuboCop + a bevy of friends to gradually lint Ruby 3.0 code

• 🗓️ 2026-09-09T05:02:05Z | rubocop-ruby2_6 (3.0.7) | 🦾 Configure RuboCop + a bevy of friends to gradually lint Ruby 2.6 code

• 🗓️ 2026-09-09T04:36:56Z | standard-rubocop-lts (2.0.13) | Enables Ruby projects to more confidently support even the most finely-aged Rubies. Part of the rubocop-lts family.

• 🗓️ 2026-09-08T03:20:51Z | standard-rubocop-lts (2.0.12) | Enables Ruby projects to more confidently support even the most finely-aged Rubies. Part of the rubocop-lts family.

• List is updated frequently by my pet robot: @autobolt

• 🗓️ 2026-05-26T22:22:00Z | Why flag_shih_tzu is changing its default SQL for bit flags | 🏷️ ruby, rails, activerecord, bitfield
• 🗓️ 2026-05-25T04:24:26Z | yard-yaml 0.1.1: safer UTF-8 handling for YAML documentation | 🏷️ ruby, rubygems, yard, yaml
• 🗓️ 2026-05-24T06:29:36Z | yard-fence 0.9.0: cleaner YARD docs when Markdown braces get in the way | 🏷️ ruby, rubygems, yard, opensource
• 🗓️ 2026-05-24T00:35:28Z | yard-timekeeper: Stop YARD Timestamp Churn in Checked-In Docs | 🏷️ ruby, rubygem, yard, opensource
• 🗓️ 2026-04-01T05:59:42Z | 💎REL: oauth2 v2.0.18 | 🏷️ ruby, oauth, security, github
• 🗓️ 2026-02-18T06:20:33Z | 🐠 ANN: appraisal2 v3.0.6 - support frozen appraisal lockfiles | 🏷️ news, ruby, testing, tooling
• 🗓️ 2026-02-06T01:00:32Z | Hostile Takeover of RubyGems: My Thoughts | 🏷️ opensource, ruby, rails, governance
• 🗓️ 2026-01-19T03:03:27Z | ⚡️ setup-ruby-flash | 🏷️ ruby, gha, ore, rv
• 🗓️ 2025-11-06T23:39:10Z | 💲FLOSS Funding | 🏷️ career, discuss, opensource
• 🗓️ 2025-10-14T00:49:55Z | 💎 ANN: omniauth-identity v3.1.5 (Hanami/ROM Support) | 🏷️ webdev, ruby, rom, authentication
• 🗓️ 2025-09-18T06:30:38Z | 💎 ANN: oauth2 v2.0.17 | 🏷️ ruby, oauth, webdev, instagram
• 🗓️ 2025-09-15T11:53:14Z | 💎 ANN: kettle-dev v1.1.20 w/ improved CHANGELOG handling | 🏷️ devtools, ruby, packaging, automation

• 🦷 I'm putting more of my focus on FLOSS/FOSS/OSS efforts (of myself and others)! and from
• 👷 I build big things and small things out of tiny bits.
• ✨ Recently created rubocop-lts for library maintainer happiness 👩‍❤️‍👩.
• 🔭 I’m working on finishing the migration away from TravisCI to modern CI tools.
• 🌱 I’m learning Svelte & SvelteKit, with Lucia, Drizzle, Zod, Inlang Paraglide, Skeleton, Tailwind, Typescript, and so many more cool tools.
• 👯 Preparing next release of seed_migrations and oauth gems!
• 🤔 I’ve moved my suite of Resque plugins to the Resque org!
• 📫 How to reach me
• 😄 Pronouns: He/Him
• 🗨️ I speak 3 languages fluently, and for a 4th I'm learning Bahasa Indonesia!
• 👷‍♂️ I help refugees and ex-refugees in Ghana🇬🇭 and Liberia🇱🇷, respectively, through Hope For Tomorrow, a Liberian NGO. DM me if interested in knowing more.

🛠️ My Dev Tools:

• The list is long, even in summary, see my LinkedIn.

• Open Source Contributor, OWASP | 🌪️ OWASP CycloneDX
• Open Source Contributor, ASF | 👀 Apache SkyWalking Eyes
• FLOSS Blogger | RailsBling
• FLOSS Author | RubyGems
• FLOSS Maintainer | Tidelift Enterprise OSS
• Researcher | WordTree Foundation