my suggestion would be to create a "hands-on" course ( for Udemy, PS, Coursera, etc... ) teaching/showing what you already know. It's of lesser importance wheth

my suggestion would be to create a "hands-on" course ( for Udemy, PS, Coursera, etc... ) teaching/showing what you already know. It's of lesser importance whether or not your course get approved/carried by the company in question. Let's say: "scrum-managed ROR for beginners", "database performance tuning on ROR applications", "ROR microservices backend for mobile apps", whatever. Draw your course as a mind-map, go on filling the gaps and you will start to find areas that you want to know more. If it works out, you've got a stream of passive income, if not, you have scratched your itch and sharpened your skills... Repeat until you get bored.