jamesgober 

High-performance, production-ready multi-source configuration management library for .NET. Supports JSON, YAML, TOML, INI, XML, environment variables, command-line arguments, user secrets, HTTP endpoints, and... More information

A lightweight, high-performance in-process event bus for .NET. Strongly-typed events, async handlers, ordered dispatch, error isolation, and DI integration.

Trie-based HTTP router for ASP.NET Core. Compiled per-route execution chains, static/dynamic/hybrid routing, hot-reload, and built-in parameter constraints.

High-performance rate limiting for .NET APIs. Token bucket, sliding window, fixed window, and concurrency limiting with ASP.NET Core middleware integration.

High-performance structured logging for .NET with correlation IDs, file rotation, and log enrichment. Built on Microsoft.Extensions.Logging.

Structured error handling framework for .NET with RFC 7807 Problem Details.

A multi-tenancy library for .NET 8 ASP.NET Core applications. Resolves tenants from subdomains, headers, paths, or claims. Isolates configuration and data per tenant.

In-memory and distributed caching for .NET with stampede protection.

Lightweight health checks and readiness probes for .NET services. Built-in checks for databases, HTTP dependencies, disk space, and memory with three-state model, TTL caching, and Kubernetes-ready endpoints.

Immutable audit trail library for .NET 8 with hash chaining, filters, and non-blocking sink dispatch.

JWT authentication and authorization for .NET APIs.

Template engine for .NET 8. Compiled rendering, layouts with sections, partials, loops, conditionals, and configurable asset paths.

A background job queue and scheduled task runner for .NET 8.