https://www.youngju.dev/blog 천천히 올바르게. AI Researcher & DevOps Engineer Youngju's tech blog. GPU/CUDA, LLM, MLOps, Kubernetes AI workloads, distributed training, and data engineering. ko fjvbn2003@gmail.com (Youngju Kim) fjvbn2003@gmail.com (Youngju Kim) Sat, 16 May 2026 00:00:00 GMT https://www.youngju.dev/blog/culture/2026-05-16-modern-ruby-rails-2026-ruby-3-4-rails-8-hotwire-sorbet-kamal-solid-queue-deep-dive.en https://www.youngju.dev/blog/culture/2026-05-16-modern-ruby-rails-2026-ruby-3-4-rails-8-hotwire-sorbet-kamal-solid-queue-deep-dive.en In 2026, Ruby and Rails are not dead — they are quietly doing more work than ever. YJIT improvements in Ruby 3.4, the Solid trio (Queue/Cache/Cable) in Rails 8 dropping Redis as a hard dependency, Hotwire giving you interactive UIs without React, Sorbet and Tapioca from Stripe sprinkling in gradual types, Kamal 2 from 37signals letting you deploy with a single `kamal deploy`, Mission Control for job monitoring, Propshaft and Action Notifier as new Rails 8 defaults, RuboCop / Standard / Brakeman for code quality, plus the alternative ecosystem of Hanami 2 / Roda / Sinatra / dry-rb — and finally, who should pick Ruby/Rails in 2026: solo devs, early startups, B2B SaaS, and where it stops being the right choice. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) rubyrailshotwireturbostimulussorbettapiocakamalsolid-queuesolid-cachesolid-cableyjithanamirodasinatradry-rb2026deep-diveenglish https://www.youngju.dev/blog/culture/2026-05-16-modern-ruby-rails-2026-ruby-3-4-rails-8-hotwire-sorbet-kamal-solid-queue-deep-dive.ja https://www.youngju.dev/blog/culture/2026-05-16-modern-ruby-rails-2026-ruby-3-4-rails-8-hotwire-sorbet-kamal-solid-queue-deep-dive.ja 2026年、Ruby と Rails は死んでいない — むしろ最も静かに、最も多く働いているスタックの一つになっている。Ruby 3.4 の YJIT、Rails 8 の Solid トリオ(Queue/Cache/Cable)で Redis 依存を切り離したこと、Hotwire で React なしでもインタラクティブな UI を作る方法、Stripe が作った Sorbet と Tapioca で漸進的型付けを乗せる方法、37signals の Kamal 2 で `kamal deploy` 一発でデプロイする方法、Mission Control でジョブを監視する方法、Propshaft と Action Notifier のような Rails 8 の新しい基本、RuboCop / Standard / Brakeman でコード品質を整える方法、そして Hanami 2 / Roda / Sinatra / dry-rb のような代替フレームワークまで — 1-2 人から B2B SaaS まで、誰がなぜ Ruby/Rails を選ぶべきかを一気にまとめる。 Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) rubyrailshotwireturbostimulussorbettapiocakamalsolid-queuesolid-cachesolid-cableyjithanamirodasinatradry-rb2026deep-dive日本語 https://www.youngju.dev/blog/culture/2026-05-16-modern-ruby-rails-2026-ruby-3-4-rails-8-hotwire-sorbet-kamal-solid-queue-deep-dive https://www.youngju.dev/blog/culture/2026-05-16-modern-ruby-rails-2026-ruby-3-4-rails-8-hotwire-sorbet-kamal-solid-queue-deep-dive 2026년에 Ruby와 Rails는 죽지 않았다 — 오히려 가장 조용하게 가장 많이 일하는 스택이 되었다. Ruby 3.4의 YJIT, Rails 8의 Solid 트리오(Queue/Cache/Cable)로 Redis 의존성을 떼어낸 것, Hotwire로 React 없이도 인터랙티브 UI를 만드는 법, Stripe가 만든 Sorbet과 Tapioca로 점진적 타입을 입히는 법, 37signals의 Kamal 2로 `kamal deploy` 한 줄에 배포하는 법, Mission Control로 잡을 모니터링하는 법, Propshaft와 Action Notifier 같은 Rails 8의 새 기본기, RuboCop·Standard·Brakeman으로 코드 품질을 잡는 법, 그리고 Hanami 2·Roda·Sinatra·dry-rb 같은 대안까지 — 1-2인부터 B2B SaaS까지 누가 왜 Ruby/Rails를 골라야 하는지 한 번에 정리한다. Sat, 16 May 2026 00:00:00 GMT fjvbn2003@gmail.com (Youngju Kim) rubyrailshotwireturbostimulussorbettapiocakamalsolid-queuesolid-cachesolid-cableyjithanamirodasinatradry-rb2026deep-dive