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1. fga-dotnet fga-dotnet Public

   Fine-grained authorization in C# inspired by Google Zanzibar. Relation tuples, recursive expansion, role inheritance, and ABAC policies on PostgreSQL.

   C#

2. ticket-booking-system ticket-booking-system Public

   Concurrency-safe ticket booking system in Java. Lock-free CAS-based seat reservation, Postgres persistence, real-time seat map via SSE. Built to prove exactly one winner when many threads race for …

   Java

3. pg-query-profiler pg-query-profiler Public

   Real-time query profiler for EF Core + PostgreSQL. Intercepts, fingerprints, and tracks p50/p95/p99 latency per query pattern.

   C#

4. multi-tenant-localisation-api multi-tenant-localisation-api Public

   A multi-tenant localisation API built with ASP.NET Core 10, PostgreSQL, and EF Core. Resolves tenant identity and culture per request via API key authentication and middleware.

   C#

5. event-driven-sync event-driven-sync Public

   A .NET 10 distributed system demonstrating event-driven architecture with RabbitMQ, MassTransit, and the transactional outbox pattern across three independent microservices.

   C#

6. k8s-autoscaling-pipeline k8s-autoscaling-pipeline Public

   Event-driven .NET Worker Service deployed to Kubernetes with Horizontal Pod Autoscaler that scales from 1 to 5 pods under CPU load

   C#