Load plugin before opening its help via telescope.nvim

telescope.lua

-- Adapt code to package manager of your choice.
-- I am using lazy.nvim in this example

local help_tag_mapping = {
  ['<CR>'] = function(prompt_bufnr)
    local selection = require('telescope.actions.state').get_selected_entry()
    if not selection then
      return
    end
    local doc_path = selection.filename or selection.path
    require('telescope.actions').close(prompt_bufnr)

    local plugin_to_load = nil
    for _, p in pairs(require('lazy').plugins()) do
      if doc_path:find(p.dir, 1, true) then
        plugin_to_load = p.name
        break
      end
    end

    -- some plugin names don't match the name you would require
    -- For example, conform.nvim would be loaded via `require("conform")` NOT `require("conform.nvim")`
    -- This can be different for every plugin, so you'll need to figure this out on your own.
    local map = {
      ['conform.nvim'] = 'conform',
      ['crates.nvim'] = 'crates',
      ['nvim-scissors'] = 'scissors',
    }
    if plugin_to_load then
      plugin_to_load = map[plugin_to_load] or plugin_to_load
      pcall(require, plugin_to_load)
    end

    vim.cmd('help ' .. selection.value)
  end,
}

return {
  "nvim-telescope/telescope.nvim",
  dependencies = { --[[ your dependencies ]] },
  config = function()
    require("telescope").setup({
      -- Rest of your config
      pickers = {
        help_tags = { mappings = { i = help_tag_mapping, n = help_tag_mapping } },
      },
    })
  end,
}