a quick implementation of the snacks picker to run npm scripts in a tmux sidebar to the right

npm_scripts.lua

local function get_npm_scripts()
	local file = io.open("package.json", "r")
	if file then
		local content = file:read("*a")
		file:close()
		local packageData = vim.json.decode(content)
		if packageData.scripts then
			local scripts = {}
			for key, value in pairs(packageData.scripts) do
				-- add key, value to the scripts table
				scripts[key] = value
			end
			return scripts
		else
			return "No scripts found in package.json"
		end
	else
		return "package.json file not found"
	end
end

-- Open custom picker
function RunNpmInSidebar()
	local scripts = get_npm_scripts()
	-- if scripts is a string then print it and exit
	if type(scripts) == "string" then
		print(scripts)
		return
	end

	return Snacks.picker({
		finder = function()
			local items = {}
			for key, value in pairs(scripts) do
				table.insert(items, {
					key = value,
					text = key,
				})
			end
			-- sort the items table by the key
			table.sort(items, function(a, b)
				return a.key < b.key
			end)
			return items
		end,
		layout = {
			layout = {
				box = "horizontal",
				width = 0.5,
				height = 0.5,
				{
					box = "vertical",
					border = "rounded",
					title = "NPM Scripts",
					{ win = "input", height = 1, border = "bottom" },
					{ win = "list", border = "none" },
				},
			},
		},
		format = function(item, _)
			local ret = {}
			local a = Snacks.picker.util.align
			ret[#ret + 1] = { a(item.key, 20) }
			ret[#ret + 1] = { " " }
			ret[#ret + 1] = { a(item.text, 20) }

			return ret
		end,
		confirm = function(picker, item)
			picker:close()
			os.execute("tmux-split-right 'npm run " .. item.text .. "'")
		end,
	})
end