no-neck-pain.nvim is a Neovim plugin that centers the focused buffer in the middle of the screen by creating empty side buffers. It provides a non-opinionated, highly configurable zen-like editing experience without the intrusive UI changes typical of other 'distraction-free' plugins. The plugin manages window layout across multiple tabs, supports splits/vsplits, and integrates with popular file trees (NvimTree, Neo-tree), dashboards (alpha, snacks), and other tools like undotree, neotest, nvim-dap-ui, outline, and aerial. The architecture is modular Lua with clear separation into configuration, state management, UI creation, color handling, and utility modules. The core logic revolves around dynamic layout scanning via Neovim's winlayout API, event-driven re-initialization, and per-tab state tracking.