miniserve
For when you really just want to serve some files over HTTP right now
miniserve is a compact command-line utility for sharing files and directories over HTTP. It is written in Rust and distributed as a self-contained binary for major desktop and server platforms. Users can serve one file, expose a browsable directory, host a static site, or route missing paths to a single-page application. Optional authentication, TLS, random routes, and custom headers help control access.