My favorite thing about Neovim is how easy it is to customize (I know, I know, but keep reading, it's about to get spicier) with LLMs. I got sick of Bear and Obsidian and had DeepSeek bash Vim's head in until it was the todo + calendar app of my dreams. Since OpenCode can easily interact with Vim during the terminal, it can itself test whether its changes work until it meets the criteria I set. No going back.