I've been impressed with Google Apps Script (https://script.google.com https://script.google.com) for little things. Define a doGet (or doPost) function, and it

I've been impressed with Google Apps Script (https://script.google.com https://script.google.com) for little things. Define a doGet (or doPost) function, and it will be called for HTTP requests. https://developers.google.com/apps-script/guides/content https://developers.google.com/apps-script/guides/content has a tiny example where they fetch an RSS feed, transform it, and serve the result. You also have very easy access to Google services, so you can read from and write to Google spreadsheets, Drive, Gmail, etc.