Neovim: A Developer Guide to the Modern Vim

w / b       → forward / backward by word
e           → end of word
0 / $       → start / end of line
gg / G      → top / bottom of file
f{char}     → jump to next {char} on the line
t{char}     → jump to just before {char}
/{pattern}  → search forward
?{pattern}  → search backward
%           → matching bracket

# Buffers
:e file.lua          Open a file in a new buffer
:bnext / :bprev      Navigate buffers
:ls                  List all buffers
:bd                  Close current buffer

# Windows (splits)
:split / :vsplit     Horizontal / vertical split
Ctrl-w h/j/k/l      Move between windows
Ctrl-w =             Equalize window sizes
Ctrl-w o             Close all other windows

# Tabs
:tabnew              New tab
gt / gT              Next / previous tab

-- init.lua: minimal LSP setup (Neovim 0.11+)
vim.lsp.enable('lua_ls')       -- enable lua-language-server
vim.lsp.enable('ts_ls')        -- enable typescript-language-server

-- Common keymaps (set in an LspAttach autocmd)
vim.keymap.set('n', 'gd', vim.lsp.buf.definition)
vim.keymap.set('n', 'gr', vim.lsp.buf.references)
vim.keymap.set('n', 'K',  vim.lsp.buf.hover)
vim.keymap.set('n', '<leader>rn', vim.lsp.buf.rename)
vim.keymap.set('n', '<leader>ca', vim.lsp.buf.code_action)
vim.keymap.set('n', '[d', vim.diagnostic.goto_prev)
vim.keymap.set('n', ']d', vim.diagnostic.goto_next)

-- Install parsers (via nvim-treesitter plugin)
:TSInstall lua typescript python rust

-- Tree-sitter powered text objects (with nvim-treesitter-textobjects)
-- vaf  → select outer function
-- vic  → select inner class
-- ]m   → jump to next method

-- ~/.config/nvim/init.lua

-- Options
vim.opt.number         = true       -- line numbers
vim.opt.relativenumber = true       -- relative line numbers
vim.opt.tabstop        = 2          -- tab width
vim.opt.shiftwidth     = 2          -- indent width
vim.opt.expandtab      = true       -- spaces instead of tabs
vim.opt.signcolumn     = 'yes'      -- always show sign column
vim.opt.clipboard      = 'unnamedplus'  -- use system clipboard
vim.opt.ignorecase     = true       -- case-insensitive search
vim.opt.smartcase      = true       -- unless uppercase is used

-- Leader key
vim.g.mapleader = ' '

-- Keymaps
vim.keymap.set('n', '<leader>w', ':w<CR>')
vim.keymap.set('n', '<leader>q', ':q<CR>')
vim.keymap.set('n', '<Esc>', ':nohlsearch<CR>')

-- Bootstrap lazy.nvim (place at top of init.lua)
local lazypath = vim.fn.stdpath('data') .. '/lazy/lazy.nvim'
if not vim.uv.fs_stat(lazypath) then
  vim.fn.system({
    'git', 'clone', '--filter=blob:none',
    'https://github.com/folke/lazy.nvim.git',
    '--branch=stable', lazypath,
  })
end
vim.opt.rtp:prepend(lazypath)

require('lazy').setup({
  { 'nvim-telescope/telescope.nvim',  -- fuzzy finder
    dependencies = { 'nvim-lua/plenary.nvim' } },
  { 'nvim-treesitter/nvim-treesitter', build = ':TSUpdate' },
  { 'neovim/nvim-lspconfig' },         -- LSP configs
  { 'hrsh7th/nvim-cmp' },              -- autocompletion
})

q{reg}       Start recording into register {reg}
q            Stop recording
@{reg}       Play macro from register {reg}
@@           Repeat last played macro
5@a          Play macro 'a' five times

# Example: wrap each line in quotes
qa           Record into register a
0i"<Esc>     Go to start, insert "
A"<Esc>      Go to end, append "
j            Move to next line
q            Stop recording
99@a         Apply to next 99 lines