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nvim/CLAUDE.md
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holgerandClaude Opus 5.5 0696df8b61 added manually installed language servers to mason config
Add jsonls, yamlls, marksman, taplo, texlab and hyprls to
ensure_installed so a fresh setup installs them too.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-28 20:48:11 +02:00

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# CLAUDE.md
This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
## Overview
Personal Neovim configuration using [lazy.nvim](https://github.com/folke/lazy.nvim) as the plugin manager. All Lua code lives under the `holger` namespace in `lua/holger/`.
## Architecture
**Entry point:** `init.lua` loads three modules:
- `holger.core` — Neovim options and keymaps (`lua/holger/core/`)
- `holger.lazy` — bootstraps lazy.nvim and loads all plugins
- `holger.lsp` — LSP keymaps and diagnostic signs
**Plugin loading:** `lua/holger/lazy.lua` calls `require("lazy").setup()` with two import paths:
- `holger.plugins` — all files in `lua/holger/plugins/` (each returns a lazy.nvim spec table)
- `holger.plugins.lsp` — files in `lua/holger/plugins/lsp/`
**Adding a plugin:** Create a new file in `lua/holger/plugins/` that returns a lazy.nvim spec table. It will be auto-imported.
## Key Configuration
- **Leader key:** `<Space>`
- **Colorscheme:** catppuccin
- **Indentation:** 2 spaces, expandtab
## LSP Stack
- `mason.nvim` — installs LSP servers and tools
- `mason-lspconfig.nvim` — bridges Mason with nvim-lspconfig; auto-installs: `html`, `cssls`, `lua_ls`, `pyright`, `jsonls`, `yamlls`, `marksman`, `taplo`, `texlab`, `hyprls`
- `mason-tool-installer.nvim` — installs formatters/linters: `prettier`, `stylua`, `isort`, `black`, `pylint`, `shfmt`
- `blink.cmp` (`lua/holger/plugins/blink-cmp.lua`) — sets up LSP capabilities via `vim.lsp.config("*", ...)` (native Neovim LSP API)
- `lazydev.nvim` — Lua LSP annotations for Neovim API (`vim.*`)
## Completion
- **blink.cmp** — completion engine with built-in LSP, buffer, path, and snippet sources
- Replaces: nvim-cmp, cmp-nvim-lsp, LuaSnip, lspkind, nvim-autopairs
- Snippets loaded from `friendly-snippets`
- Auto-brackets enabled (replaces nvim-autopairs)
## Formatting & Linting
- **conform.nvim** — formats on save; `<leader>mp` to format manually
- CSS/HTML/JSON/YAML/Markdown/GraphQL → prettier
- Lua → stylua
- Python → isort + black
- Shell (sh/bash) → shfmt
- **nvim-lint** — lints on BufEnter/BufWritePost/InsertLeave; `<leader>l` to trigger manually
- Python → pylint
## Key Keymaps
| Key | Action |
|-----|--------|
| `jk` (insert) | Exit insert mode |
| `<leader>ee` | Toggle nvim-tree file explorer |
| `<leader>ef` | Toggle explorer on current file |
| `<leader>ff` | Telescope find files |
| `<leader>fs` | Telescope live grep |
| `<leader>fr` | Telescope recent files |
| `<leader>fc` | Grep string under cursor |
| `s` / `S` | Flash jump / Flash treesitter jump |
| `<leader>mp` | Format file (conform) |
| `<leader>l` | Trigger linting |
| `<leader>sv/sh` | Split window vertical/horizontal |
| `<leader>nh` | Clear search highlights |
## Notable Plugins
- **telescope.nvim** — fuzzy finder with fzf-native extension
- **nvim-treesitter** — syntax highlighting and incremental selection (`<C-space>`)
- **blink.cmp** — completion engine with LSP/buffer/path/snippet sources
- **flash.nvim** — enhanced motion with jump labels; integrated into `/` search
- **auto-session** — automatic session save/restore
- **which-key** — displays keybinding hints
- **fugitive** — Git integration
- **trouble.nvim** — diagnostics list
- **lazydev.nvim** — Lua LSP support for Neovim config development