Robert's Nixvim Config

A fully declarative Neovim configuration built as a Nix flake using nixvim. No manual plugin management — everything is reproducible and self-contained.

Features

LSP servers: Lua, Nix, Bash, JSON, JavaScript/TypeScript, C/C++, Rust, Java, C#/.NET (Roslyn), Python, Scala (Metals), LaTeX

Treesitter grammars: Nix, Vim/Vimdoc, Bash, Lua, Python, JSON, Java, C#, Rust, C/C++, Markdown, YAML, TOML, Scala, JavaScript/TypeScript/TSX/JSDoc

Plugins:

• Completion via nvim-cmp + Copilot
• Telescope for fuzzy finding
• Neo-tree file explorer
• Harpoon for quick file navigation
• DAP for debugging
• Git integration (lazygit)
• Glance for LSP peek definitions/references
• Search and replace with Spectre
• Code folding with nvim-ufo
• Session management
• Which-key for keybinding discovery
• Mini.nvim utilities
• Catppuccin colorscheme + Lualine statusline

Usage

C# language features use roslyn.nvim with the Roslyn server from Nixpkgs. A .NET SDK must be on PATH (SDK 10+ is recommended); launching Neovim from the project's development shell lets global.json select the intended SDK.

# Run the full config directly
nix run github:rschaffar/nixvim-config

# Run the light config for headless / low-bandwidth machines
nix run github:rschaffar/nixvim-config#light

# Verify both configs build without errors
nix flake check

The light output disables the heaviest bundled tooling (Java, C#/.NET, C/C++, Python, Scala, JS/TS, Bash, Nix LSP stacks, DAP helpers, Git tooling, and extra desktop utilities) while keeping the core editor/plugins.

To integrate into an existing flake, add this as an input and include the package in your environment.

Structure

config/
├── default.nix          # Root module — imports everything, declares extra packages
├── options.nix          # Neovim options (tabs, line numbers, etc.)
├── keymaps.nix          # Global keybindings
├── autocmds.nix         # Autocommands
└── plugins/
    ├── lsp.nix          # LSP server configurations + keymaps
    ├── treesitter.nix   # Treesitter grammars
    ├── cmp.nix          # Completion engine
    ├── copilot.nix      # GitHub Copilot
    ├── telescope.nix    # Fuzzy finder
    ├── neo-tree.nix     # File explorer
    ├── dap.nix          # Debug Adapter Protocol
    ├── git.nix          # Git integration
    ├── harpoon.nix      # File navigation
    └── ...              # Colorscheme, statusline, editing, etc.