Server-Side DOM Shim

server-dom-shim is a utility package designed to provide a minimal shim for standard DOM APIs within server-side rendering (SSR) environments. Its primary purpose is to prevent common errors like `HTMLElement is not defined` when rendering web components or other DOM-dependent JavaScript on the server, without incurring the overhead of a full browser emulation library like JSDOM. The package is currently at version 1.1.0 and has seen a consistent, albeit not rapid, release cadence with updates in late 2025 and mid-2024. A key differentiator is its use of Node.js conditional exports, which intelligently exports `@lit-labs/ssr-dom-shim` in Node.js environments while deferring to native DOM APIs in browser contexts. This approach allows developers to write universal codebases that seamlessly adapt to different execution environments, making it suitable for modern SSR frameworks and libraries that leverage web standards. It focuses on providing necessary global definitions rather than full interactive DOM capabilities.