Nvim Config

Native Neovim config

Conventions for Neovim configs built on vim.pack, lsp/ and plugin/ with no plugin manager framework. Requires Neovim >= v0.12.0.

References — read the one the task needs:

This config's location

The native config lives at ~/.dotfiles/nvim-fredrik/ inside the dotfiles repo. It is symlinked into place via GNU Stow:

~/.dotfiles/nvim-fredrik/          <- actual files (edit here)
~/.dotfiles/stow/shared/.config/nvim-fredrik -> ../../../nvim-fredrik  (stow entry)
~/.config/nvim-fredrik -> ~/.dotfiles/stow/shared/.config/nvim-fredrik  (stow result)

Launch it with NVIM_APPNAME=nvim-fredrik nvim. Apply stow symlinks after changes from ~/.dotfiles/stow with packages=(shared "$(uname -s)"); host="$(hostname -s)"; [ -d "$host" ] && packages+=("$host"); stow --target="$HOME" --restow --no-folding --adopt "${packages[@]}". Neovim itself comes from nixpkgs-unstable via home-manager (nix/shared/home/common.nix) -- binary at ~/.nix-profile/bin/nvim.

Architecture

No framework -- each directory has a single responsibility:

~/.config/nvim-fredrik/
  init.lua               -- leader keys, require("options"), diagnostics, keymaps
  lua/
    lazyload.lua         -- VimEnter/UIEnter deferred setup queues
    merge.lua            -- deep merge helper (appends+deduplicates lists, recurses dicts)
    options.lua          -- all vim.opt settings
    dev.lua              -- local dev plugin loader
    ...                  -- other utility modules (fold, toggle, pickers, icons, etc.)
  lsp/                   -- (unused; nvim-lspconfig provides base configs)
  parser/                -- treesitter parser .so files (managed by nvim-treesitter)
  colors/                -- custom colorschemes (loaded by :colorscheme)
  snippets/              -- custom snippet files (loaded by blink.cmp)
  ftplugin/              -- per-filetype editor settings (vim.opt_local)
  plugin/
    lang/                -- per-language plugins, custom filetypes, autocmds
    blink.lua            -- completion (VimEnter)
    conform.lua          -- formatting (VimEnter)
    dap.lua              -- debugging (deferred to first use)
    lint.lua             -- linting (VimEnter)
    lsp.lua              -- LSP enable + LspAttach keymaps (VimEnter)
    lualine.lua          -- statusline (VimEnter, sync)
    mason.lua            -- tool installation (VimEnter)
    neotest.lua          -- testing (deferred to first use)
    <name>.lua           -- other feature plugins (snacks, treesitter, oil, etc.)
  after/
    lsp/                 -- all LSP server configs (overrides package defaults)
    queries/<lang>/      -- treesitter query extensions (injections.scm, etc.)
    syntax/<ft>.vim      -- legacy syntax overrides/extensions

Notes on the layers:

• lua/lazyload.lua provides on_vim_enter(fn, opts?) and on_ui_enter(fn, opts?) for queuing setup functions. Default is async (via vim.schedule()); { sync = true } runs synchronously. Also provides on_override(fn) for project-local overrides (runs after all VimEnter callbacks). Only lualine uses { sync = true }.
• lua/merge.lua deep-merges: appends and deduplicates lists, recurses into dicts, overwrites scalars. vim.NIL as a value removes a key.
• lua/dev.lua loads a plugin from a local clone if it exists, otherwise falls back to vim.pack.add().
• plugin/ files are self-contained: vim.pack.add() -> setup -> keymaps. Sourced alphabetically at step 11; subdirectories included via the ** glob.
• plugin/lang/ is one file per language, only for languages needing genuinely language-specific wiring: plugins, custom filetypes (vim.filetype.add), build hooks, autocmds. Tool config (servers, formatters, linters) lives inline in the core plugin files; per-filetype editor settings live in ftplugin/.

vim.pack

vim.pack.add({
  "https://github.com/user/repo",                                    -- string form
  { src = "https://github.com/user/repo" },                          -- table form
  { src = "https://github.com/user/repo", name = "repo" },           -- custom name
  { src = "https://github.com/user/repo", version = "main" },                   -- branch/tag/commit
  { src = "https://github.com/user/repo", version = vim.version.range("1.*") }, -- semver range
})

vim.pack.update()                             -- interactive update with confirmation buffer
vim.pack.update({"name"}, { force = true })   -- update specific plugin, skip confirm
vim.pack.del({"name"})                        -- remove from disk
vim.pack.get()                                -- list all managed plugins

Install location is stdpath("data") .. "/site/pack/core/opt/<name>"; the lockfile is $XDG_CONFIG_HOME/nvim/nvim-pack-lock.json, committed to VCS.

No URL shorthand helpers in this config. The upstream docs suggest a local gh = function(x) ... end, but since vim.pack.add() is scattered across many plugin/ files (one per plugin), a central helper adds no value. Use full URLs.

The load option decides which of the three loading patterns a file uses — see references/loading-patterns.md.

after/lsp/ config files

Each file returns a vim.lsp.Config table; the filename (without .lua) becomes the server name. Placed in after/lsp/ to override base configs shipped by packages. No setup() call needed.

-- after/lsp/gopls.lua
---@type vim.lsp.Config
return {
  cmd = { "gopls" },
  filetypes = { "go", "gomod", "gowork", "gosum" },
  root_markers = { "go.work", "go.mod", ".git" },
  settings = {
    gopls = {
      analyses = { unusedparams = true },
      staticcheck = true,
    },
  },
}

Servers are enabled in plugin/lsp.lua via vim.lsp.enable(servers). To disable one: vim.lsp.enable("gopls", false).

Adding a new language

1. Add LSP server to the servers list in plugin/lsp.lua
2. Add mason tools to the ensure_installed list in plugin/mason.lua
3. Add formatters to formatters_by_ft in plugin/conform.lua
4. Add linters to linters_by_ft in plugin/lint.lua
5. Testing/debugging/coverage/running: plugin/neotest.lua, plugin/dap.lua, plugin/nvim_coverage.lua, plugin/code_runner.lua
6. (if needed) ftplugin/<ft>.lua -- editor settings (vim.opt_local), unless Neovim's built-in ftplugin already covers them
7. (if needed) plugin/lang/<ft>.lua -- language-specific plugins, custom filetypes, autocmds
8. (optional) after/lsp/<server>.lua -- override nvim-lspconfig base config