return {
  {
    "nvim-treesitter/nvim-treesitter",
    opts = function(_, opts)
      vim.list_extend(opts.ensure_installed, {
        "nix",
      })
    end,
  },
  {
    "williamboman/mason.nvim",
    opts = function(_, opts)
      vim.list_extend(opts.ensure_installed, {
        "nil",
      })
    end,
  },
  {
    "neovim/nvim-lspconfig",
    opts = {
      servers = {
        nil_ls = {},
      },
    },
  },
  {
    "stevearc/conform.nvim",
    opts = function(_, opts)
      opts.formatters_by_ft.nix = opts.formatters_by_ft.nix or {}
      table.insert(opts.formatters_by_ft.nix, "alejandra")
      return opts
    end,
  },
  {
    "mfussenegger/nvim-lint",
    opts = function(_, opts)
      opts.linters_by_ft.nix = opts.linters_by_ft.nix or {}
      table.insert(opts.linters_by_ft.nix, "statix")
      return opts
    end,
  },
  {
    "luckasRanarison/nvim-devdocs",
    optional = true,
    ensure_installed = {
      "nix",
    },
  },
}