Deno is a JavaScript, TypeScript, and WebAssembly runtime. It's built on V8, Rust, and Tokio. This script builds only half of Deno from source, the V8 engine itself is downloaded from github in a binary form. Patches to build itself from source are welcomed by the SlackBuild author. In particular, this package should be useful for a new (circa 2025) generation of yt-dlp. NOTE: deno needs ~12Gb of disk space and about the same for memory. If it fails to build check for OOM messages and increase swap and/or enable zram.