How do I display available keybindings in a popup when pressing leader?

Explanation

which-key.nvim shows a popup window with available keybindings after you press a prefix key like <leader>. This eliminates the need to memorize every mapping — just press the prefix and the popup guides you through available options.

How it works

• Press <leader> — after a short delay, a popup shows all <leader> mappings
• Navigate nested groups by pressing the next key
• Mappings are automatically discovered from your configuration
• Custom labels can describe what each key does

Example

require('which-key').setup()
require('which-key').register({
  ['<leader>f'] = { name = '+find' },
  ['<leader>ff'] = { ':Telescope find_files<CR>', 'Find Files' },
  ['<leader>fg'] = { ':Telescope live_grep<CR>', 'Live Grep' },
  ['<leader>g'] = { name = '+git' },
  ['<leader>gs'] = { ':Git<CR>', 'Git Status' },
})

After pressing <leader>:
┌─────────────────────────┐
│ f → +find               │
│ g → +git                │
│ b → +buffers            │
│ w → Save file           │
└─────────────────────────┘

Tips

• Works with any prefix, not just <leader>: g, z, ], [, etc.
• Groups create hierarchical menus: <leader>f → submenu of find commands
• Automatically detects existing mappings — no configuration needed for basic use
• Set timeoutlen=300 for a quicker popup appearance