Two versions for Mac are available: one for intel-based Macs, complied under macOS Catalina (10.15), and another one for arm-based Macs, complied under macOS Sequoia (15.6). To start vlab for the first time, you may need to pass macOS's Gatekeeper by clearing the application's quarantine flag, which can be done by executing the following command in Terminal:
sudo xattr -cr /{YOUR_PATH_TO_VLAB}/vlab-5.1/browser.app.
The Ubuntu version was compiled under Ubuntu 22.04.5 LTS, and requires Qt version 5.15. Other Linux distributions require recompiling from the sources.
Please see README for further installation details.