This is the web application powering the Journal of Open Source Software (JOSS), a diamond open-access journal that publishes peer-reviewed papers about research software. It is a monolithic Ruby on Rails application (Rails 7.2 / Ruby 3.3) that manages the complete lifecycle of academic submissions, from author submission through editorial review, publication, and DOI minting. The system is deeply integrated with the GitHub API (via Octokit) to manage review issues, labels, and comments, effectively using GitHub as a collaboration platform for the peer review process. It features a sophisticated state machine for paper workflows (submitted, under review, accepted, rejected, retracted), ORCID-based authentication, Elasticsearch-powered search, and automated notification emails. Key architectural components include a webhook dispatch controller for processing GitHub events, a feature flag system (JournalFeatures), a blocklist for preventing spam submissions, and a structured editorial board management system with tracks and subjects. The frontend uses Bootstrap 4.3.1 with Hotwired Turbo and custom JavaScript. Background tasks are handled by Rake tasks (cron jobs via Heroku Scheduler). While the core application is well-maintained and actively developed, it shows signs of technical drift in its frontend dependencies (Bootstrap 4, jQuery) and relies on a custom Rails configuration DSL. The codebase is well-tested with RSpec and system specs, making it a robust platform for its specific domain.