function prereqs()
	local output = vim.fn.system({
		"which",
		"cspell",
	})
	if output == nil or output == "" then
		print("Installing cspell globally with npm")
		vim.fn.system({
			"npm",
			"install",
			"-g",
			"cspell@latest",
		})
	end
end

return {
	{
		"jose-elias-alvarez/null-ls.nvim",
		dependencies = { "williamboman/mason.nvim" },
    build = prereqs,
		opts = function(_, config)
			-- config variable is the default definitions table for the setup function call
			local null_ls = require("null-ls")

			-- Check supported formatters and linters
			-- https://github.com/jose-elias-alvarez/null-ls.nvim/tree/main/lua/null-ls/builtins/formatting
			-- https://github.com/jose-elias-alvarez/null-ls.nvim/tree/main/lua/null-ls/builtins/diagnostics
			config.sources = {
				-- Set a formatter
				null_ls.builtins.formatting.prettier, -- typescript/javascript
				null_ls.builtins.formatting.stylua,
				null_ls.builtins.formatting.rustfmt,
				null_ls.builtins.formatting.black, -- python
				-- null_ls.builtins.code_actions.proselint, -- TODO looks interesting
				null_ls.builtins.code_actions.cspell.with({
					config = {
						find_json = function()
							return vim.fn.findfile("cspell.json", vim.fn.environ().HOME .. "/.config/nvim/lua/user/;")
						end,
					},
				}),
				null_ls.builtins.diagnostics.cspell.with({
					extra_args = { "--config", "~/.config/nvim/lua/user/cspell.json" },
				}),
			}

			config.update_in_insert = true
			config.debug = true

			return config
		end,
	},
	{
		"jay-babu/mason-null-ls.nvim",
		opts = {
			ensure_installed = { "rustfmt", "stylelua", "prettier", "black" },
		},
	},
}