Version 10.6.5 offers robust proxy media tools. Editors can generate lightweight versions of 4K or 8K footage, allowing them to edit complex projects on portable laptops with limited storage and processing power.
A truly portable version of FCP 10.6.5 that works across multiple Macs without installation does not exist in the legitimate software ecosystem. final cut pro 1065 portable
If you need to edit on the go without being tied to a specific desktop workstation, Apple offers these legitimate solutions: Version 10