Lightning-fast Neovim config with LSP support for Nix, Rust, Python, and Go.

• Flexible installation - Use Mason, Nix, or language-specific tools
• No auto-installers - You control your tooling
• Lightning fast - Lazy loading, no unnecessary overhead
• Works everywhere - Nix and non-Nix systems use the same config

git clone <your-repo> ~/.config/nvim

Choose your preferred method - all work seamlessly:

1. Launch Neovim
2. Run :Mason
3. Install what you need: lua_ls, rust_analyzer, pyright, gopls

Note: nixd is not available in Mason. For Nix support, install via Nix (see below).

# Install all LSP servers and tools
nix profile install \
  nixpkgs#lua-language-server \
  nixpkgs#nixd \
  nixpkgs#rust-analyzer \
  nixpkgs#pyright \
  nixpkgs#gopls \
  nixpkgs#alejandra \
  nixpkgs#statix \
  nixpkgs#stylua \
  nixpkgs#rustfmt \
  nixpkgs#black \
  nixpkgs#ruff \
  nixpkgs#gofumpt \
  nixpkgs#gotools \
  nixpkgs#golangci-lint

Or add to your home.nix:

home.packages = with pkgs; [
  lua-language-server
  nixd
  rust-analyzer
  pyright
  gopls
  alejandra
  statix
  stylua
  rustfmt
  black
  ruff
  gofumpt
  gotools
  golangci-lint
];

# Rust
rustup component add rust-analyzer rustfmt clippy

# Python
pip install pyright ruff black

# Go
go install golang.org/x/tools/gopls@latest
go install mvdan.cc/gofumpt@latest
go install golang.org/x/tools/cmd/goimports@latest
go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest

# Lua (if not using Mason or Nix)
# Download from GitHub releases or use your system package manager

Totally fine! The config automatically uses whichever tools are in your PATH. For example:

• Install Rust tools via rustup
• Install Python tools via pip
• Install Nix tools via Nix
• Use Mason for everything else

PATH priority ensures manually installed tools take precedence over Mason.

Launch Neovim and run:

:checkhealth

This will show which LSP servers and tools are available.

The shell.nix is only for developing the Neovim configuration itself (not for LSP servers):

cd ~/.config/nvim
nix-shell  # Provides lua, stylua, luacheck for config development

# Format the config
stylua .

# Lint the config
luacheck . --globals vim

• catppuccin - Color scheme
• lualine - Status line with catppuccin theme
• dashboard - Start screen
• nvim-web-devicons - File icons

• telescope - Fuzzy finder for files, grep, buffers, help tags
• telescope-manix - Search Nix/Home Manager options
• neo-tree - File explorer
• vim-tmux-navigator - Navigate between tmux panes and vim splits

• Comment.nvim - Toggle comments
• treesitter - Syntax highlighting and parsing
• nvim-cmp - Autocompletion
• LuaSnip - Snippet engine

• mason.nvim - Optional LSP installer (lazy loaded)
• mason-lspconfig - Mason integration with lspconfig
• nvim-lspconfig - LSP client configurations
• cmp-nvim-lsp - LSP completion source
• none-ls - Formatting and diagnostics

• lua_ls - Lua
• nixd - Nix (with Home Manager and flake support)
• rust_analyzer - Rust (with clippy, inlay hints, proc macros)
• pyright - Python
• gopls - Go

• <Space> - Leader key

• <leader>ff - Find files
• <leader>fg - Live grep
• <leader>fb - Buffers
• <leader>fh - Help tags
• <leader>fn - Search Nix options

• <leader>/ - Toggle line comment (normal & visual)
• <leader>cb - Toggle block comment (normal & visual)

• gd - Go to definition
• gD - Go to declaration
• gi - Go to implementation
• gr - List references
• K - Hover documentation
• <C-k> - Signature help
• <leader>rn - Rename symbol
• <leader>ca - Code action
• <leader>f - Format buffer
• <leader>th - Toggle inlay hints
• gl - Line diagnostics
• [d - Previous diagnostic
• ]d - Next diagnostic

• <leader>y - Copy to system clipboard
• <leader>Y - Copy line to system clipboard
• <leader>ya - Copy entire buffer to system clipboard
• <leader>p - Paste from system clipboard
• <leader>P - Paste before cursor from system clipboard

• ⚡ Lightning fast - Mason lazy loads, zero overhead if tools pre-installed
• 🎯 Auto-format on save - All supported languages
• 💡 Inlay hints - Rust and Nix type hints
• 🔍 Telescope integration - File search, grep, Nix options, help tags
• 🌳 Neo-tree - File explorer with icons
• ✨ Smart completion - LSP-powered with snippets
• 🎨 Beautiful UI - Catppuccin theme, rounded borders, diagnostic icons
• 📦 Flexible tooling - Mason, Nix, or manual installation - your choice