Nicely stated in my opinion. I have updated the GIT Manual accordingly. I did change one thing so as not to "scare" every one - I left out the part that eventually Vulkan would replace OpenGL. In reality Cinelerra should have Vulkan a choice in the Video Driver section of the Settings->Performance but I do not ever see that happening in my lifetime unless some expert volunteers. Thank you to Andrea.

I made some additions to the manual regarding Vulkan, but only in the general section. I'm not sure if I was always accurate, so please check what I wrote. However, I have not made any changes to the specific sections on decoding [19.1.1] and encoding [19.1.2] because I do not fully understand the subject. Is what is written in these sections still valid? What should we add? I'm sorry, I'm just confused and unable to make corrections.