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CtrlUserKnown edited this page Mar 5, 2026 · 5 revisions

A personal Neovim configuration running on Neovim v0.11.6 with LuaJIT, managed by lazy.nvim.

Directory Structure

charvim/
├── nvim/
│   ├── init.lua                  # Entry point — loads all modules and bootstraps lazy.nvim
│   ├── lazy-lock.json            # Plugin version lockfile
│   ├── lua/
│   │   ├── alpha-config.lua      # Dashboard (start screen) config
│   │   ├── autoclose.lua         # Custom auto-close pairs module
│   │   ├── completion-config.lua # nvim-cmp completion setup
│   │   ├── harpoon-config.lua    # Harpoon 2 quick-file navigation
│   │   ├── keymaps.lua           # Global keybindings
│   │   ├── lsp-config.lua        # LSP server configs and diagnostics
│   │   ├── nvim-tmux-navigator.lua
│   │   ├── options.lua           # Editor options (tabs, clipboard, etc.)
│   │   ├── plugins.lua           # Plugin declarations for lazy.nvim
│   │   ├── statusline.lua        # Custom statusline
│   │   ├── treesitter-config.lua # Tree-sitter parser and highlight setup
│   │   └── img/
│   │       └── charVim.txt       # ASCII art logo for the dashboard
├── after/
│   └── ftplugin/
│       └── cobol.lua             # COBOL-specific overrides (tabstop 8, colorcolumn 7/73)
└── .nvim.bak/                    # Backup of a previous config version

Leader Keys

Key Value
<leader> Space
<localleader> \

Leader key timeout: 500ms

Keybindings

Tip

This section covers custom keybindings. For standard Neovim motions (like h/j/k/l, w, b, etc.), please refer to the HOME.md file.

General

Keys Mode Action
jk Insert Escape to normal mode
<leader>w Normal Save file (:w)
<leader>q Normal Save and quit (:wq)
<leader>qq Normal Quit without saving (:q!)
; Normal Shortcut to shell command (:!)

Navigation

Keys Mode Action
[[ Normal Go to beginning of file (gg)
]] Normal Go to end of file (G)
H Normal/Visual Custom: Go to beginning of line (0)
L Normal/Visual Custom: Go to end of line ($)
Alt+[ Normal/Visual Previous paragraph ({)
Alt+] Normal/Visual Next paragraph (})
Ctrl+h/j/k/l Normal Navigate splits (also integrates with tmux panes)

Line Manipulation

Keys Mode Action
Alt+k / Alt+j Normal Move line up / down
Alt+k / Alt+j Visual Move selection up / down
Ctrl+k / Ctrl+j Insert Move line up / down
Ctrl+Shift+k / Ctrl+Shift+j Normal Copy (duplicate) line up / down
Ctrl+Shift+k / Ctrl+Shift+j Visual Copy selection up / down

File Explorer (Telescope File Browser)

Keys Mode Action
<leader>e Normal Open file browser at current file's directory
<leader>v Normal Open file browser (same as above)
:E or :Tree Command Open file browser

Telescope

Keys Context Action
Ctrl+. Telescope insert mode Toggle hidden files
Dashboard f Alpha Find file
Dashboard g Alpha Live grep
Dashboard r Alpha Recent files

Hidden files are shown by default. .git/ directories are always ignored.

Harpoon 2

Keys Mode Action
<leader>a Normal Add current file to Harpoon list
<leader>ar Normal Remove current file from Harpoon list
<leader>ac Normal Clear all Harpoon marks
<leader>h Normal Toggle Harpoon quick menu
Alt+1 through Alt+5 Normal Jump to Harpoon file 1–5
Alt+n / Alt+p Normal Next / previous Harpoon file

LSP

Keys Mode Action
K Normal Hover documentation
gd Normal Go to definition
gD Normal Go to declaration
gi Normal Go to implementation
go Normal Go to type definition
gr Normal Show references
gs Normal Signature help
<leader>lr Normal Rename symbol
<leader>ca Normal Code action
<leader>e Normal Open diagnostic float (when LSP attached)
[d / ]d Normal Previous / next diagnostic
<leader>ih Normal Toggle inlay hints
<leader>ig Normal Add word under cursor to dictionary
<leader>di Normal Inspect diagnostics at cursor

Java (buffer-local, active in .java files)

Keys Mode Action
<leader>jb Normal Build project (Maven/Gradle/Ant auto-detected)
<leader>jt Normal Run tests
<leader>jc Normal Clean project
<leader>jw Normal Clean JDTLS workspace cache

Completion (nvim-cmp)

Keys Mode Action
Tab / Shift+Tab Insert Cycle through completion items
Ctrl+Space Insert Trigger completion manually
Enter Insert Confirm selected completion
Ctrl+e Insert Abort completion
Ctrl+b / Ctrl+f Insert Scroll documentation up / down

Copilot

Keys Mode Action
Alt+l Insert Accept suggestion
Alt+k / Alt+j Insert Next / previous suggestion
Ctrl+] Insert Dismiss suggestion
Alt+Enter Insert Open Copilot panel
[[ / ]] Copilot panel Jump to previous / next suggestion

Tree-sitter Incremental Selection

Keys Mode Action
gnn Normal Init selection
grn Normal Expand to next node
grc Normal Expand to scope
grm Normal Shrink selection

Which-Key Groups

Prefix Group
<leader>r Refactor

Other

Keys Mode Action
<leader>d Normal Go to Alpha dashboard

Plugins

Plugin Manager

  • lazy.nvim — Lazy-loading plugin manager. Change detection is enabled but silent.

Theme

  • rose-pine (variant: main) — Background is transparent (disable_background = true). Cursor line number highlighted in Rosé Pine gold.

UI

  • noice.nvim — Replaces the command line with a centered popup. Custom icons for search, filter, Lua, and help prompts. Messages are disabled (no nvim-notify dependency). Popupmenu uses nui backend.
  • alpha-nvim — Dashboard/start screen with custom charVim ASCII art logo and quick-access buttons (find file, new file, recent files, live grep, config, Lazy, quit).
  • which-key.nvim — Displays available keybindings in a popup (modern preset).

Navigation & File Management

  • telescope.nvim + telescope-file-browser.nvim — Fuzzy finder and file browser. Replaces netrw. Shows hidden files by default.
  • harpoon (v2) — Quick file bookmarking and navigation. Saves on toggle, syncs on UI close.
  • vim-tmux-navigator — Seamless navigation between Neovim splits and tmux panes with Ctrl+h/j/k/l.

Editing

  • nvim-surround — Add, change, and delete surrounding pairs (quotes, brackets, tags, etc.).
  • vim-visual-multi — Multi-cursor support.
  • autoclose (custom module) — Auto-closes brackets, quotes, and backticks. Handles escape-through-closing-char, backspace-deletes-pair, and enter-opens-block. Also works in command mode and visual mode (wrap selection).

LSP & Diagnostics

  • nvim-lspconfig — Base LSP client configurations.
  • mason.nvim + mason-lspconfig.nvim — Automatic LSP server installation. Servers guaranteed installed: lua_ls, pyright, ts_ls, jdtls.
  • sourcekit-lsp — Configured natively via vim.lsp.config() for Swift/C/C++/Objective-C.
  • Diagnostics filter suppresses sentence/paragraph length warnings.
  • Inlay hints enabled by default where supported (can toggle with <leader>ih).

Configured LSP Servers

Server Languages Notes
lua_ls Lua Auto-installed via Mason
pyright Python Auto-installed via Mason
ts_ls TypeScript/JavaScript Auto-installed via Mason
jdtls Java Per-project workspace dirs, Maven/Gradle/Ant auto-detect, inlay hints forced on, code lens enabled
gopls Go Unused param + shadow analysis, gofumpt, full inlay hints
tinymist Typst Exports PDF on save
sourcekit-lsp Swift, C, C++, Obj-C Uses new vim.lsp.config() API

Completion

  • nvim-cmp — Completion engine with sources:
    • nvim_lsp — LSP completions
    • nvim_lua — Neovim Lua API completions
    • luasnip — Snippet completions
    • buffer — Buffer word completions (fallback)
    • path — File path completions (fallback)
    • copilot — GitHub Copilot suggestions (via copilot-cmp)
  • LuaSnip — Snippet engine.
  • Completion also active in cmdline (: and / search).

AI

  • copilot.lua + copilot-cmp — GitHub Copilot integration. Auto-triggers suggestions with 75ms debounce. Disabled for yaml, markdown, help, and git files.

Syntax & Parsing

  • nvim-treesitter — Syntax highlighting, indentation, and incremental selection. Auto-installs missing parsers. Disables highlighting for files > 100KB.
  • Installed parsers: c, crystal, lua, vim, vimdoc, query, javascript, typescript, python, rust, go, html, css, json, markdown, bash, yaml, toml.
  • Crystal files (.cr) fall back to Ruby syntax if Tree-sitter highlighting fails.

Document Authoring

  • typst-preview.nvim — Live browser preview for Typst files. Custom commands: :TP (start), :TS (stop), :TU (update).

Editor Options

Option Value
Line numbers On (absolute)
Relative numbers Off
Tab width 4 spaces (expandtab)
Smart indent On
Swap files Off
Backup files Off
Clipboard System clipboard (unnamedplus)
Scroll offset 10 lines
Encoding UTF-8
Cursor line Highlighted (number only, gold color)
Cursor shape Block in normal/visual, vertical bar in insert, horizontal bar in replace
Command line height 0 (hidden)
Whitespace chars Visible (tab ▸, trail ·, extends », precedes «, nbsp ␣, leading │)
Background Transparent (both Normal and NormalFloat)

Statusline

Custom-built statusline (no plugin). Displays:

  • Left: Gold V indicator + filename + modified flag [+]
  • Right: Save confirmation (purple flash for 2s) + current mode name + percentage + column + "Help"

Mode names: NORMAL, INSERT, VISUAL, V-LINE, V-BLOCK, COMMAND, SELECT, REPLACE, SHELL, TERMINAL.

Highlight colors use Rosé Pine palette:

  • Mode box: gold #f6c177 on dark #191724
  • Saved flash: iris #c4a7e7 on dark #191724
  • Bar: foam #e0def4 on dark #191724

Filetype-Specific Settings

COBOL (after/ftplugin/cobol.lua)

  • Tab width: 8 spaces
  • Color columns at 7 and 73 (traditional fixed-format margins)
  • Text width: 72
  • Absolute line numbers, no relative numbers

Crystal

  • .cr files mapped to crystal filetype
  • Custom Tree-sitter parser from crystal-lang-tools/tree-sitter-crystal
  • Falls back to Ruby syntax highlighting if Tree-sitter fails

Java

  • Build system auto-detected (Maven pom.xml, Gradle build.gradle, Ant build.xml)
  • Per-project JDTLS workspace directories stored in ~/.cache/nvim/jdtls/<project_name>
  • Import organization, code lens, and code generation templates configured

Custom Commands

Command Action
:E Open Telescope file browser
:Tree Open Telescope file browser
:TP Start Typst preview
:TS Stop Typst preview
:TU Update Typst preview

Notes

  • The .nvim.bak/ directory contains a backup of a previous configuration version.
  • Plugin versions are locked in nvim/lazy-lock.json. Run :Lazy update to update and :Lazy restore to roll back.
  • Mason-managed LSP servers are stored in Neovim's data directory (~/.local/share/nvim/mason/).
  • The autoclose module is a custom implementation (not a plugin), located at nvim/lua/autoclose.lua.

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