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    @verified-holidays@TeamAHA

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    55728/README.md

    Kenta Ishizaki

    石﨑健太

    Freelance Rails Engineer · OSS Contributor

    An engineer who reads the source, finds the bug, and sends the patch.

    Currently

    Freelance Rails Engineer — full-stack development on a B2B SaaS platform.

    OSS highlights

    Doorkeeper doorkeeper-openid_connect Collaborator (Write access)

    Ruby on RailsAll Time #58 · 271 commits (as of Aug 11, 2026) · top ~1% of all-time contributors

    • Merged across 7+ sub-frameworks: Active Record, Active Support, Action View, Action Cable, Action Mailer, Action Pack, Action Job
    • Featured in This Week in Rails
    📌 Notable PRs
    • #56872 Add start_day argument to this_week? — new API for multi-tenant week-start consistency
    • #57245 Fix find_signed for composite primary key models — prior-art gap in CPK support
    • #58139 Harden load_schema_migrations — CRLF resilience & duplicate version dedup

    Stack

    Languages

    RubyGoTypeScriptJavaScriptPython

    Frameworks

    RailsVue.jsNuxtReactNext.js

    Infrastructure & Data

    PostgreSQLMySQLAWSDockerKubernetes

    Testing

    RSpecMinitestPlaywright

    Pinned Loading

    1. doorkeeper-gem/doorkeeper-openid_connectdoorkeeper-gem/doorkeeper-openid_connectPublic

      OpenID Connect extension for Doorkeeper

      Ruby 216 130