S3rver: Local S3 Mock Server

S3rver is a lightweight, in-memory or file-system-backed server that emulates a significant subset of the Amazon S3 API, designed primarily for local development and testing environments. It allows developers to test S3 interactions without incurring costs or relying on external network requests. The current stable version is `3.7.1`, with development being active and releases addressing bug fixes, performance improvements, and expanding S3 API compatibility. Key differentiators include its focus on being a development-only tool, minimal runtime dependencies, support for programmatic integration into test suites, and simulation of S3's static website hosting capabilities, including website routing rules. It supports common S3 operations like bucket creation/deletion, object CRUD, object tagging, and basic object lifecycle features.