Never learned Emacs but am a Neovim user. But similar to what I said to my colleagues as well. Codex, Claude Code are VS Code, Jetbrain. Pi is Neovim.
I understand both world views and both are legitimate. But I do feel like LLMs are advancing so quickly that it's not a good use of my time to optimize harnesses at this point. I have actual work to do, so sharpening my tools needs to be selective and time-boxed. Personally I'm staying agnostic on harness, not locking into Codex or Claude Code, but also not prematurely optimizing things that tens of thousands of other tools-focused developers are going deep on across the ecosystem. My goal is not to be an early adopter but to reap the benefits of all that experimentation.
Even more so, Pi even has opinionated forks and "distributions" like oh-my-pi that are like LazyVim/AstroVim.