If you are contributing code, actively testing the development images and reporting bugs, writing documentation, or helping spread the word by writing blog posts, speaking at conferences etc., you can get access to LTS images for free.
Just fill this form: https://share.hsforms.com/1DmAR8XwnR2W2Ys8-gBbiOQ2ghzu and we will contact you.
Please describe your contributions and provide links to git commits, Phabricator tasks, blog posts and anything else.
People who have contributed to VyOS before release model change in 2019 can get a perpetual subscription. Everyone who contributed only after the model change gets a yearly subscription that is extended if they remain active within the project.