Here is a humble small v0.2.0 of intel_fw.

https://github.com/platform-system-interface/intel_fw/releases/tag/v0.2.0

It now has a command to extract ME directories, as previewed here:
https://mastodon.social/@CyReVolt/116826680367985669

This also adds a few more notes to the README for other people to chime in.