legacy-migration

A robust, multi-module Jakarta EE 10 banking application, fully containerized using Docker and Docker Compose. This project demonstrates how to modernize a legacy-style "Big Iron" Java application (EAR packaging) by migrating it to a containerized environment.

AI-powered COBOL to Python modernization tool — rule-based parsing + Claude API

A Claude Code plugin with two loops: a gate-verified pipeline that migrates legacy .NET applications with RoselineMCP, and a hands-off GitHub issue → PR lifecycle (create-issue, implement-issue, merge-pr, auto-dev) that runs on any repository through one committed profile.

Translate COBOL to Python. Zero dependencies, 100% valid output on 5,288 files. Handles EXEC SQL/CICS/DLI, REDEFINES aliasing, GO TO, nested programs, SCREEN SECTION, and 50+ verbs. MCP server included.

Modernizing legacy financial infrastructure with Project Loom, Spring Boot 3.4, and resilient, high-concurrency microservice architectures.

"A comprehensive structural migration of a legacy database engine from C to modern C++. This project focuses on re-engineering procedural logic into Object-Oriented patterns, implementing RAII for memory safety, and integrating STL containers for optimized data management and performance.

A capstone project demonstrating the design of a secure, scalable, and highly available 3-tier AWS architecture to migrate a legacy monolithic application, addressing critical downtime and traffic surge challenges.

Formation Visual Basic .NET (.NET 10 LTS, Visual Studio 2026), recentrée sur les forces réelles du langage . bureau (WinForms/WPF), données, interopérabilité, migration de legacy . avec architecture hybride VB/C# et développement assisté par IA.

Nuked-Klan 1.7.15 - PHP 8.0+ Compatible Edition - Community-maintained modernization of the classic gaming CMS ✨

A drop in Rust port of sthttpd 2.27.0, proven by differential tests against the original C binary.

AI-first rebuild of a legacy internal business system with Next.js, Rust, and Supabase — public entry point for prospective contributors and workshop participants

Migração de sistema legado (PHP 7.4 procedural) para Laravel 12 — API REST de fornecedores com service layer, FormRequest, API Resources, soft deletes e testes de feature em PHPUnit.

Cinco aplicaciones de escritorio de Windows XP y 7 reemplazadas por un solo portal web, más autoservicio de contraseña.

Legacy WinForms order management migration to .NET 10 + React with an LLM-powered natural language query interface.

Demonstrating C# fundamentals, including data type manipulation, conditional logic, and user input validation through a multi-scale temperature converter.

Legacy procedural PHP clinic system modernized to Laravel 13 + Vue 3 + Inertia.js

레거시 분석·스펙 승인·구현·검증을 연결하는 Claude Code·Codex 개발 플러그인

Modern public-access SPA and Node.js Backend-For-Frontend (BFF) for historical document research. Built to securely isolate and modernize a legacy Payara/PostgreSQL infrastructure.

Complete legacymod pipeline output over AWS CardDemo: knowledge graph, business rules, current-state docs, Java/OpenAPI scaffolds, and a GnuCOBOL-vs-Python field-level equivalence PASS.

COBOL単体テスト設計支援 — ロジック階層 / テストケース自動生成 / C1分岐カバレッジ / Driver雛形（Pure Excel VBA, zero dependencies）