Commercial use of unofficial versions can lead to legal penalties.
Install BricsCAD on your main machine and use Bricsys 24/7 to access files from anywhere.
BricsCAD, like other professional CAD software, requires proper installation, license activation (perpetual or subscription), and registry entries on the host system. Any website offering a "portable" version that runs from a USB drive without installation is almost certainly distributing a cracked, pirated, or tampered copy. Using such software violates copyright laws, poses severe security risks (malware, keyloggers, ransomware), and provides no technical support or updates.