nixos/config/nvim/lua/config_plugins/config_aerial.lua

require('aerial').setup {
    backends = { "treesitter", "lsp", "markdown", "man" },
    layout = {
        default_direction = "right", -- "float",
        placement = "edge",
    },
    attach_mode = "global",
    lazy_load = false,
    on_attach = function(bufnr)
        -- Toggle the aerial window with <leader>a
        vim.api.nvim_buf_set_keymap(bufnr, 'n', '<leader>k', '<cmd>AerialToggle!<CR>', {})
        -- Jump forwards/backwards with '{' and '}'
        vim.api.nvim_buf_set_keymap(bufnr, 'n', '{', '<cmd>AerialPrev<CR>', {})
        vim.api.nvim_buf_set_keymap(bufnr, 'n', '}', '<cmd>AerialNext<CR>', {})
        -- Jump up the tree with '[[' or ']]'
        vim.api.nvim_buf_set_keymap(bufnr, 'n', '[[', '<cmd>AerialPrevUp<CR>', {})
        vim.api.nvim_buf_set_keymap(bufnr, 'n', ']]', '<cmd>AerialNextUp<CR>', {})
    end,
    open_automatic = false,
}