Because "Weave" refers to several different technologies, the "weave.zip" file you are looking for depends on which software you are using. 1. Weave-Loader (Minecraft Modding)
You can find the latest releases on the Weave-MC GitHub Repository. Download weave zip
The project mirror on SourceForge provides a ZIP containing the network binaries. Download weave zip
If you are developing , Weave is a toolkit by Weights & Biases. Download weave zip