That's the best kind of start, you know it's a useful thing when you've build similar things before when freelancing. I'm currently building a similar service

That's the best kind of start, you know it's a useful thing when you've build similar things before when freelancing. I'm currently building a similar service but for 'serverless functions' (hate that terminology to be honest), so not long running containers but one off tasks. Similar to AWS Lambda and the likes.