The "thmyl" and "mediafre" segments of your query appear to be shorthands for a specific community-modified version (often associated with users like "thmyl" or similar) typically hosted on file-sharing sites like Understanding Wifislax 4.12
thmyl — likely a user or community-contributed overlay, meta-package, or script collection. It may: wifislax-412-iso-thmyl-mediafre
Key tools included: