A repository showing how to handle concurrent conflicts using EntityFramework Core and DDD Aggregates

Run AI coding agents in parallel on one git repo and safely auto-merge their work — only changes that build and pass tests land. On top of plain git; bring your own model.

An implementation of Optimistic Concurrency Control Algorithms - FOCC and BOCC (Forward and Backward), according to the book Transactional Information Systems (Vossen)

A thread-safe in-memory key-value store with optimistic concurrency support.

Entity Framework Core Concurrency Control Demo

Live room where humans and NodeAgents edit a shared spreadsheet, note, and post-it wall together — never clobbering each other. lock → draft → smart-merge with per-element CAS versioning. Runs deterministic (no keys, in-memory) or live (Convex + model-routed LLM agents). Verified multi-client sync, no refresh.

Shared versioned state for multi-agent AI workflows. An MCP server.

Release-candidate editorial CMS with database sessions, workspace RBAC, immutable revisions, conflict-safe autosave and tested media/AI boundaries.

A comprehensive full-stack CRUD application showcasing modern client-server architecture with search, sorting, pagination, optimistic concurrency, bulk operations, and real-time statistics built in vanilla JavaScript and Node.js.

AI document editor with per-chunk optimistic concurrency, HTTP-streamed Gemini generation, cosine-similarity retrieval, and queued PDF export.

A lock-free software-only runtime system for C++ that eliminates concurrency errors for fork-join parallel programs

Production-ready collaborative wiki backend with MongoDB, OCC, JWT auth, full-text search, and schema migrations

Collaborative market research reports backend: report sharing, section-level optimistic concurrency (ETag/If-Match), append-only audit log with revert, and LLM-gateway section rewrite. FastAPI + async SQLAlchemy + Alembic + PostgreSQL.

A .NET 10 demo for exploring optimistic and pessimistic database concurrency patterns with Entity Framework Core, SQL Server, and Minimal APIs.

Independent household cash-flow product demonstrating accessible React architecture, secure Spring Boot APIs, PostgreSQL ownership boundaries, and cross-layer verification.

A highly scalable RESTful Airline Ticketing API built with .NET 8. Features a custom Ocelot API Gateway, B2B Agency ticketing model, Optimistic Concurrency Control, and full Microsoft Azure cloud deployment.

Event Sourcing from scratch on PHP/Symfony — a wallet with balance and fund holds. Hand-rolled event store, projections and snapshots on Doctrine DBAL, no ES/CQRS libraries. Portfolio project covering optimistic concurrency, read-time upcasting, and idempotent projectors.

Bank API with concurrency check on Bank Balance with ASP.NET Core and Entity Framework Core

Stops AI agents from acting on stale plans, with dependency-aware leases, fenced commits, and stale-safe LangGraph resume.

Optimistic concurrency control in EF Core with PostgreSQL via Npgsql. Companion ASP.NET Core 10 demo for the blog post: base Entity class, SaveChangesInterceptor, load helper, retry wrapper, and HTTP 409 mapping.